Junior Development: $475,776 Price Tag
For all the money consumed in junior player development, why aren’t there tennis financial advisors? Has anyone taken the time to calculate the present value of future cash flows needed to develop an average national caliber junior from beginning to end? With so much uncertainty involved, probably not.
The available information is anecdotal at best. CAtennis.com comes to the rescue with a rough financial analysis of the costs associated with nurturing and maximizing talent from start to finish. Of course every family and child are unique and particular circumstances may differ (for example, living in Southern California and having access to outdoor facilities year-around versus the Midwest; playing at public courts v. having to join a private club; etc.). Therefore, a few assumptions are necessary before conducting the research:
- 8 year old boy with average tennis skills on a national level (this means that that player is no bigger or smaller than the rest of the kids and average in athleticism and other physical characteristics).
- Player comes from a upper middle-class family in the Los Angeles area (approximately $150,000 in combined income)
- Child and parent share a long-term intention of attending a top D1 tennis school (in other words, this is not just one of the many activities that the player will be involved in; this is the main, if not one and only, extra-curricular activity)
- Ultimate goal is to pursue a career in professional tennis
With these initial assumptions out of the way, it is time for some number crunching on a detailed annual basis starting with 2012. The proposed figures are purely hypothetical and should be analyzed through the lens of the picture painted above. The guestimation begins and all numbers are based on 2011 prices. Furthermore, this is a family that is totally committed to tennis (i.e., everyone is operating under the assumption that the child will pursue a serious tennis career which will include high-level college tennis and, perhaps, a shot at “the tour”).
2012 - Age 8
- Equipment - $400 (rackets, shoes, newest tennis clothes - gotta wear what Rafa/Roger wear, right?!)
- Group Lessons - $2,880 = 12 x $240 per month (3hrs x week @ $20 per group)
- Private Lessons - $2,640 = 12 x $220 per month ($55 per private)
- Membership Fees - $2,400 = 12 x $200 per month (not including initial membership fee)
- Tournaments - $4800 = 12 x $400 (1 tournament per month, a majority of them within driving distance). Cost includes gas and food (maybe sports drinks and energy bars). But is also a rough estimate of paying a pro to go watch the child play (Lil' Mo?) as well as overnight lodging at some events.
Total - $13,120
2013 - Age 9
Not much change happens between 8-10 years of age. The only difference will be accounting for inflation at a historical rate of approximately 3 percent.
Total - $13,513 = 1.03 x $13,120
2014 - Age 10
Total - $13,907 = 1.06 x $13,513
2015 - Age 11
The dynamics start to change on the part of the parent and child. Due to the initial investment made on the child, the parents and the player get more emotionally attached to the results. At this point, an “arm’s race” may begin to take place among the child’s immediate competitors. Therefore, they decide to “up the ante” a little bit and add more tennis, all in hopes of getting ahead of the competition (there’s always someone who’s better). The child is ranked in the top 300 on TR.net in the 6th grade and the he gets a taste of celebrity when he ventures out to a far-away national event. More and more discussions start to take place between players, parents and coaches with an emphasis on the national stage ("will he make it?" "does he have what it takes? Tell us, coach!"). The child wants to succeed at a higher level and the parents and still fully committed to supporting the child’s dream. After all, playing tennis is better than being a latch-key kid and the parents are so proud of the attention that the child is getting from other adults/parents. Can't let them down, can we?! The decision is certianly also influenced by the results of some of the kid's peers.
- Equipment - $800 (goot fill up that 6-pack bag with 6 brand new rackets. Chances are that he didn't like the rackets after all, so he has to switch twice in one year).
- Group Lessons - $3,840 = 12 x $320 (4hrs x week @ $20 per group)
- Private Lesson - $5,280 = 12 x $440 (2 privates per week x $55)
- Membership Fees - $4,800 = 12 x $400 (adding another club for extra court time, coaches, and variety of players)
- Tournaments - $7,500 = 15 x $500 (some tournaments require farther stays and duration)
Total - $24,219 = 1.09 x $22,220
2016 - Age 12
The only difference between 11 and 12 is the increase in duration per tournament (i.e., player stays in the draw longer; therefore, more cost to the parent), which accounts for a greater cost per tournament at $700. All other expenses remain relatively similar and there is no system for cost recovery in the mateur divisions.
Tournaments - $10,500 = 15 x $700
Total - $28,246 = 1.12 x $25,220
2017 - Age 14
The child lands an equipment preferred player program deal for being top 10 in his Section, but it doesn’t offset all the equipment costs because he is breaking more strings (more expensive strings) due to addtional on-court time and a stronger physique, running through more shoes, cracking more racquets (from throwing the racquet), new Tourna Grip for every match, and the Nike clothes to fit the part. To save money in the long-term, the parents purchase a $1,000 stringing machine to string racquets for the kid.
Group lessons are reduced to 3 times per week to allow for more outside match-play with adults and juniors. However, the group lesson prices go up because he is in a more advanced group with more personal attention (coach's hourly rate is split among 2-3 players rather than 4-5 or even 6). The parents decide to hire a trainer twice a week to increase the agility and quickness of the child. Why? Because everyone else is doing it! Also, the player may be too young to know what he needs to work on from a cross-training point of view. Additional costs may include match analysis and stroke analysis software (certainly not for every match and practice but, perhaps, once per year) as well as slo-motion videography.
Private lessons are bumped up to 3 times per week (so that the player can focus on specifics), mixing in a new professional who coaches all the best juniors around in hopes of getting more time with the pro in the future. The drive is three times as far for the third private lesson and slightly more expensive for the specialized expertise (supply and demand). Membership fees are static because the child is asked to play elsewhere as a guest, one of the benefits of increasing the level of play. More people want to hit with a better player. Tournaments are increased to 18 per year (the designated/manadatory for sectional rankings; national/super-national events; doubles; etc.) and a third of the tournaments require a flight or a severe cross-country drive.
- Equipment - $2,000
- Group Lessons - $3,600 = 12 x $300 (3 x per week @ $25 per group)
- Private Lessons - $8,160 = 12 x $680 (2 x per week @$55, 1 x per week @ $60)
- Membership Fees - $4,800
- Tournaments - $14,400 = 18 x $800
Total - $37,904 = 1.15 x $32,960
2018 - Age 14
The child struggles somewhat in his first year 14’s and the parents decide that lack of training is the problem. Despite living in Los Angeles, they seek out new options to maximize his tennis. First, they explore the big academies like Everts, IMG Academies, Saddlebrook, Newks, and Weil. The price tag is hefty, but the word is they develop Grand Slam Champions.
At the same time, the parents check out smaller outfits such as Gorins, Moros, Harold Solomon/Andy Brandi- just to name a few. The parents decide on Weil because it is close-by and their son can get the best quality training within a 2-300 mile radius.
According to Weil Tennis Academy, here is the Customized Boarding and Training Program:
Full Academic Year (August - June) - Customized Boarding & Training Program
- $43,000 US (including all application and insurance fees) [2011 figures – costs may increase or decrease in by 2018; note, also, that several other year-around academies come with an annual price-tag that is considerably higher - up to $68,000 or more]
- All the features of the Full time Standard Program plus
- 1 private tennis lesson and 1 semi-private tennis lesson per week
- 1 private fitness training time per week with a Certified Personal Trainer
- 1 month of private Mental Fitness Coaching
- 2 private Nutritional Consultations per semester
- One Year Individual Developmental Training Plan
- College Tennis Placement Program with Academy Director.
A couple things to point out, the child is getting a mix of individual, semi-private and group coaching and attention; he is receiving a regimented training schedule with a group of competitive kids in addition to the mental coaching and nutritional advice. The environment is energized and the player is racking up on-court hours towards that 10,000 hour goal. The caveat is that the $43,000 will only buy training from August to June. In comparison, the parents spent $38,209 in the previous calendar year.
Other costs associated with the academy are not factored into the base price such as more private lessons (Private Tennis Lessons with Weil Academy Head Coach: $110.00 per hour), transportation, coaching fees at tournaments, and most importantly, school. The parents want the child to succeed in academics, so they purchase the University of Miami On-Line Education for approx. $11,000 per year.
The tournament costs will increase significantly because the private coach is going to travel to San Antonio Nationals, Clay Courts, Sectionals, Eddie Herr Qualifying, and Orange Bowl Qualifying. Not to mention, family members want to tag along to the fun locations exotic locations like Miami and stay at the Biltmore Hotel (for purposes of this article, we’ll assume that this is not the only vacation for the family unit thus, the costs, are tennis-related).
- Equipment - $1,200
- Weil Tennis Academy - $48,000 = $43,000 + 5,000 (figure accounts for privates, transportation, coaching at tournaments)
- Education - $10,750
- Summer Group Lessons - $900 = 3 months x $300 (3 x week @ $25 per group, must prepay for Summer Session)
- Summer Private Lessons $2,160 = 3 months x $720 (3 x week @$60, old coach is out of the picture) Membership Fees - $4,800
- Tournaments - $19,800 = 18 x $1,100 (very conservative number)
Total - $103,379 = 1.18 x $87,610
2019 - Age 15
The Weil Academy did a great job in controlling all the things they can control, but the child was not ready to make this type of commitment so soon. He missed his childhood experience and became a bit deflated by the physical and emotional demands without the usual support group. Moving forward, the parents decide to bring the child home to LA and take time off, getting ready for the next big push: setting himself up for a top D1 collegiate scholarship.
- Equipment - $1,400 (switched from Wilson NXT to Big Banger)
- Group Lessons - $3,000 = 10 months x $300 (3 x week @ $25 per group, no tennis for 2 months after academy)
- Private Lessons - $4,800 = 10 months x $480 (2 x week @ $60, reducing the amount of private lessons)
- Membership Fees - $4,800
- Tournaments - 21,600 = 18 x $1,200
Total - $43,076 = 1.21 x $35,600
2020 - Age 16
Less is more. The child starts to piece things together with the technique, point construction, mind, and overall body coordination. He cracks the top 150 in his first year 16’s and things look promising for his second year 16’s. The parents start boasting about the upside potential of the aggressive game-style the child has developed- it was only a matter of time. Seeing the light at the end of the tunnel, the parents decide it is time to make a run for the top 50 USTA.
Staying the course of the previous year with the solid support staff, the parents decide to add a full-time personal trainer.
- Equipment - $1,400
- Group Lessons - $3,600 = 12 months x $300 (3 x week @ $25 per group)
- Private Lessons - $5,760 = 12 months x $480 (2 x week @ $60)
- Membership Fees - $4,800
- Off-Court Training - $7,200 = 12 months x $600 (3 x week @ $50)
- Tournaments - 21,600 = 18 x $1,200
Total - $55,006 = 1.24 x $44,360
2021 - Age 17
What a year 2015 was, a breakthrough year. He cracked the top 50 in the nation and is starting to make some noise with a few wins in the top 30 coupled with a few disastrous losses outside the top 100. The parents feel he is so close and he only needs a few more ounces of consistency to get him to the next level.
After speaking with various sources which included parents, coaches, ex-players, and the USTA- the parents settle on integrating ITF Junior Events into his schedule. The reasoning behind the decision is for stiffer competition and to attain a top 200 ITF ranking to impress the collegiate coaches. The “real” reason is everyone else is doing it, seems like the logical thing to do.
With that being said, someone needs to travel with the player, preferably a coach. A few families around the country decide on a knowledgeable coach to take the children to 10 (10 weeks of private coaching) different ITF events throughout the year. A majority of the tournaments are located within the United States with a few dipping into Central and South America.
- Equipment - $1,200 (costs are offset by a full racquet sponsorship with limited string)
- Group Lessons - $3,000 = 10 months x $300 (3 x week @ $25 per group, 2 months at ITF events)
- Private Lessons - $4,800 = 10 months x $480 (2 x week @ $60, 2 months at ITF events)
- ITF Coaching - $4,000 = 10 weeks x $400 per week (Coaching rate = $1,200 per week, 3 players traveling)
- Off-Court Training - $6,000 = 10 months x $600 (3 x week @ $50)
- Membership Fees - $4,800
- Tournaments - $32,000 = 20 x $1,600 (paying for coaches flight, parents at a few events)
Total - $70,866 = 1.27 x $55,800
2022 - Age 18
The moment of truth arrives. The child cracked the top 75 as a first year 18’s and is ranked in the top 300 ITF. A great year nonetheless and sets him up for a run at cracking the top 20 USTA and top 150 ITF. Who knows, maybe the child can participate in a Junior Grand Slam Qualifying Draw.
Colleges are littering the mailbox with letters, especially with the game-style the child demonstrates. Professional tennis is a long-shot, but the parents want to keep the door open for a career after college.
Marching on, the parents decide to keep the same schedule and sign early with a top school. They feel they have found the optimum training formula for their child.
- Equipment - $1,200 (costs are offset by a full racquet sponsorship with limited string)
- Group Lessons - $3,000 = 10 months x $300 (3 x week @ $25 per group, 2 months at ITF events)
- Private Lessons - $4,800 = 10 months x $480 (2 x week @ $60, 2 months at ITF events)
- ITF Coaching - $4,000 = 10 weeks x $400 per week (Coaching rate = $1,200 per week, 3 players traveling)
- Off-Court Training - $6,000 = 10 months x $600 (3 x week @ $50, 2 months at ITF events)
- Membership Fees - $4,800
- Tournaments - $32,000 = 20 x $1,600 (paying for coaches flight, parents at a few events)
Total - $72,540 = 1.30 x $55,800
End of Junior Career - AGE 19
The parents are satisfied with the journey with their child finishing in the top 20 USTA and top 150 ITF. The child settles at PRIVATE University on a 35 percent scholarship, with no guarantee of playing in the top 6 for his first year. Regardless, the child is going to earn a world-class education in return for competing for a top-tier program.
The Journey Is Not Complete
The road is just beginning for the child and his tennis journey to achieving his full-potential. Private University is an expensive university ($46,000) with little chance of pouring a full-scholarship his way in the future. During the summers, Coach Awesome recommends further training coupled with competing in a handful of ITF Futures events. After college tennis, the road to professionalism is tough. Everyone comes so far to only give up a few inches from the finish line. The last two hurdles in a 100 meter sprint are the toughest to conquer and require a significant amount of financial backing.
If we add up all the years, here is the total amount spent before setting foot on college campus:
= 13,120 + 13,513 + 13,907 + 24,219 + 28,246 + 37,904 + 103,379 + 43,076 + 55,006 + 70,866 + 72,540
= $475,776 is the GRAND TOTAL accounting for inflation from the age of 8-18.
What if families invested the money instead?
With an 8% annual market return over the same time period, the parents will have saved the following amount by today:
= 13,120(1.08^11) + 13,513(1.08^10) + 13,907(1.08^9) + 24,219(1.08^8) + 28,246(1.08^7) + 37,904(1.08^6) + 103,379(1.08^5) + 43,076(1.08^4) + 55,006(1.08^3) + 70,866(1.08^2) + 72,540(1.08)
= $681,745 is the opportunity cost.
Do you think that the $681,740 figure is high? Here are some thoughts (unfortunately, there's a glaring lack of outside information available):
- In talking about the state of college scholarships, David Benjamin, ITA Executive Director, says the following: “If parents invest $50,000 a year into their child's tennis career, some feel they're owed”. He goes on to say: "But it's not in the Constitution that if you spend a certain amount, you'll get a scholarship to the school of your choice. Intellectually, a family understands this, but emotionally it's difficult to accept. That's where you get the anger."
- According to the USTA’s “Going to College or Turning Pro? Making an Informed Decision!” (October 2010) prepared by Timothy Russell, Ph.D., the annual developmental value received at college is around $48,000/year (see Appendix A). That is, if it costs that university $48,000/year to train you, it is foreseeable that a player may spend about the same amount per year before entering college.
- "The expense of developing a world-class player from age 10 to 20 is astronomical — training, traveling, equipment," Martin Blackman (heads talent identification and development for the U.S.T.A.)
- Roger Draper, head of the British Lawn Tennis Association has estimated that the cost of developing a world-class player (Wimbledon champion caliber) is £250,000 (approx. $420,000). This, of course, taking into account fewer tournaments and less travel (given the smaller distances) in UK than in USA.
Here are some questions:
A. Do you think that the figures above are too high for the average family pushing for the top echelons of tennis? Are the figures just right? If you are a parent (particularly one who is NOT a tennis pro), please feel free to share your experience so far. Are there aspects that you have sacrificed in order to reduce the overall costs? Has your child obtained a college scholarship the value of which outweighs the monetary expenditure? What would you do different? What advice would you have for similarly situated families just starting out with the sport?
B. Even if the figures are not entirely spot-on (given that every family is different and some of the costs may be shared among siblings thereby reducing the overall average), one cannot deny that a great deal of money is, in fact, expected to be "invested" in a child's development and that the money would actually pay real-world dividends if used somewhere else (e.g. income producing property). If so, is there a way to get the same results (if not better) for a fraction of the cost? For, let's say, $50,000 - $100,000?
C. What steps need to be taken by the family, coach, club, regional organization, USTA, tournament organizers, academies, colleges, etc. in order to reduce the cost of developing across the board? Is there a road-map (CAtennis.com uses that term a lot) that each segment can follow in order to get the most out of tennis with least financial sacrifice? Why isn't anybody talking about this? What do the people "in the know" have to hide?
Reader Comments (23)
soccer is cheaper, and the end result will be the same - you will need to find a real day job in your 20's.
this is great stuff though i think your numbers are somewhat off, especially the costs of tournaments and equipment. i can tell you, from personal experience, that driving to a tournament and having to stay in a hotel and eat out costs way more than $400. if you add in coaching fees, well . . . and the equipment costs that you've included are pretty conservative, i think. when you add in shoes and clothing (which they often times outgrow before they wear out, especially in the younger years) as well as stringing fees for those parents who don't make their kids string their own racquets - it adds up quickly! thank you for taking the time to put these numbers together and show the realistic costs of a junior tennis career - it's shocking to see the numbers staring you in the face like that!
Costurile de formare ale unui junior american sunt chiar impresionante si sunt cam cu 50% mai mari decat ale unui european si de peste 10 ori mai mari decat ale unui jucator roman.Trebuie sa precizez ca tinerii romani sunt campioni europeni si la fete si la baieti, dar dupa varsta de 16 ani lipsesc banii pentru ei, pentru a umbla si juca turnee din ce in ce mai tari, si ajung la 18-19 ani sa nu mai confirme.Se stie ca tenisul nu este pentru saraci si talentul nu este suficient pentru a progresa...
Felicitari pentru calcule,sunt sigur ca sunt reale , dar si asteptarile sunt pe masura...
My uncle who runs a parallel site in Romania called opentenis.ro informs me that the US cost of development appears to be 50% higher than in Europe. A lot of Romanian players dominate the junior division up to 16 years of age but lack the funding to continue in the pros after that.
Lisa,
We have requested some parents to provide some anecdotal evidence regarding their experience. Thank you for sharing your viewpoint. Hopefully, more parents will join in so that the information is put out there. It is amazing, however, that the USTA - given the breadth of resources - has not commissioned a study regarding this matter. In terms of junior development, this is probably THE MOST IMPORTANT topic along with NUMBER OF HOURS ON COURT. Parents write check after check, sign up for tournament after tournament and have no idea what they're spending or what they're getting in return. This results in frustrated parents (heck, marriages have broken up over these types of matters), coaches who don't want to deal with the parents, and players who get nowhere quick.
you have inspired me to go through my financial records and pull the REAL numbers together! i will report back!
uh-oh! don't hold out on us once you figure it out ;)
Absolutely AWESOME!!! Thank you for having the courage to speak out...It is certainly time to shine a light on this situation in the hope that it will bring about positive change!!! KEEP IT COMING.
Thank you for your input and feedback. Please feel free to pass it along to anyone who may benefit. Cheers
Wow, revealing and well done. Some things I believe based on my experience:
+ Top Academies such as IMGA, Saddlebrook, etc are doing a great job balancing fitness and technique leading to higher winning %'s
+ USTA PD are producing results with a more focused fitness strategy
+ Optimized performance = family alignment, self motivated child, strong coaching, TRX Training
Thank you. We would love some input regarding TRX training for tennis. Please email us if you would be interested in contributing some material. Thanks for reading and note that we're just scratching the surface with our ideas.
I appreciate the additional thought & research you put in to this topic. I would encourage the USTA to do the same. I've worked in the industry for 40 years and can count on one hand the number of kids who've come through any of my programs and played professionally but we've seen several go on to play college tennis each year. We offer "reality checks" for parents in the form of meetings at least twice per year. Because we are in a small community 3 hours away from a major population center - all tournaments are over-nighters. So we choose wisely and educate our kids and their families about points systems & eligibility for team events (like Zonals). If a player's goal is truly college tennis, then this gives them the chance to experience a college-like team event. We've stayed away from all of the special camps, training centers, etc. in favor of inviting other talented kids from small communities to come train with us. This keeps costs down and allows the kids to build friendships that last a lifetime.
Kathleen, thank you. Would appreciate it if you could incorporate our materials into your discussions. More parents should be aware of the financial, emotional, temporal and physical sacrifices. Please also check out parentingaces.com which also includes a lot of good info. Thanks for reading and please feel free to visit again.
This research is a great job. It could be even greater if a comparative analysis could be done with kids playing tennis in other countries such as Spain, France, Argentina or Brasil. Families now move to those places to give different opportunities to their kids. Please let us know if this could reduce or increase the cost. Any reader from those countries could help us aswell. Once again, great job.
As a current D1 college tennis player, I felt like I was reading my life story for much of this (minus a few things here and there). So many people including the kids themselves do not understand the unbelievably high cost of taking a child to the highest level of tennis they can get to (whether it be college or the pros). But the question is: Is it worth it? My parents certainly decided it was. The experiences that I was able to have because of tennis I would not trade for anything. And the individuality of the sport coupled with other aspects of playing competitive tennis have helped me in every aspect of my life including doing well in school and looking for jobs. I think at the end of the day if tennis helps the player get into a college that they may not necessarily get into otherwise then it can be worth it. The cost is high now, but (especially in today's economy) if it helps them get a job in the future-whether it be professional tennis or another job because of the degree and training from the school that tennis helped them get into- then I think it is worth it. Regardless, I think every player should look at this article and these costs and realize what their parents have given/are giving for them (and this is only monetarily).
Dear Been There... your parents must be proud of you! You bring up an interesting point with regard to education and getting into top schools. Here's another thing for players and parents to consider. According to ongoing research (began in 1989) from Stacy Dale and Alan Krueger if your parents are well educated (16 years or more) there is no significant benefit with regard to the student's future earning power to attending a school which requires higher SAT's and / or higher tuition costs. I have been watching this study for about 10 years and in terms of its impact on my tennis playing students it has illustrated the fact that for those who are not on a tennis career path, they can benefit from selecting colleges with strong academics and perhaps less competitive tennis teams. This gives them more time to study while still enjoying the opportunity to compete in a D1 or D2 program. Food for thought !
Been There, thank you for sharing your experience. What advice would you have for parents trying to cut down on some costs while maintaining a high level of tennis? Thanks
Kathleen-could you post a link to that study? Because I would be curious to see it. Forbes just put out rankings of the top 20 schools with the highest average income 10-19 years out of college. Middlebury and Dartmouth topped the list by a long shot with their averages being 120,000+. While they don't offer scholarships, both schools have great financial aid programs, and if tennis can get you into an ivy league school or a very good academic school I think it would be worth it. I have seen multiple examples of tennis grads from great schools go onto very impressive jobs right out of college that they would have gotten had they not gone to the school they did. If pro tennis is not realistic, and this amount of money has already been spent, you should get the most bang for your buck!
CATennis- my suggestion would apply mostly for SoCal or NorCal players. play a lot of practice matches against good players. Once you get to a certain level, this is the most beneficial thing. Spend 30-60 dollars once a week paying someone leagues better then your child (ex pro or ex top college player) to just destroy them. This can be extremely beneficial-alot of times more beneficial then private lessons. Have them do track workouts and sprints on their own. Conditioning can make a huge improvement in anyone's game.
Been There, thank you. This is exactly the sort of feedback that we would like to hear from out readers. Well done!
Just can't stop thinking/talking about this topic. I saw one of our earliest customers over the weekend and asked his opinion. He thought for a moment and then answered confidently: "About $500K." I asked "How'd you know?" He said "I've written the checks!"
Of course, I also remember a father who bragged about spending "a quarter of a million in just two years!!!" (OMG) but the one who guessed with such accuracy has "walked the walk" while raising two daughters (present ages 14 and 17) and now he's "talking the talk" because he wishes parents would BE REALISTIC in terms of expectations.
So glad you're shining the light on this subject...KEEP IT COMING!
Excellent! Thank you for sharing. We have actually try to collect some anecdotes from our contacts but didn't get enough info prior to publication. Hopefully, more people will come forward and share their experience so that we can learn how to make things better and more efficient. Thank you for letting us know and please do share our material with whomever may be interested.
I was able to search multiple articles referencing the Dale Krueger research. Most recently this one: http://www.dailyfinance.com/2011/02/23/elite-colleges-not-the-only-path-to-elite-paychecks/
I would suggest that driven individuals who reach great heights in the tennis world tend to do the same in their academic and professional lives as well.
Some figures are not real for a average player in SoCal. $4800-$19800 for 8-14 years old players for tournament an year is absolutely overpriced and absurd. First of all, SoCal kids do not travel far away, they play local tournaments with fee about $40. There is a lot of tournaments here in SoCal. A few players play ITF tournaments, including top Californian players. So, $32K for 17 yo for tournament is another absurd figure. I mean you can pay $500K if you want to waste your money, but this is absolutely unnecessary. Inexperienced tennis parents often pay double price because they do not understand how to develop a strong tennis player. I calculated the same period for an average tennis player, you easily can do the same thing for $100-150 for 10 years period, if you care about your money.