What makes it so difficult
Talent gets a junior noticed. It does not get them through. Five things make the professional game hard, and none of them is a forehand.
- The depth is worldwide. Every tennis nation produces strong juniors every year, and the professional game puts all of them in the same draws. A player who dominates their section, or even their country, arrives at the entry level of the pro tour to find that the player across the net was the best junior somewhere else. Winning at home is the entry ticket, not the destination.
- The junior-to-pro jump. Junior tennis is played against your own age group. Professional tennis is not. A 17-year-old at the entry level plays grown men or women — former college players, experienced professionals, tour players working their way back from injury — who are stronger, more patient and very hard to rattle. Many excellent juniors discover that what won their junior matches, whether speed, consistency or one big weapon, is no longer enough on its own.
- The years where ranking outruns income. Earning ranking points and paying for the life are two different achievements, and for years they do not line up. A young professional can play at a level almost nobody on earth can match and still depend on family, a federation, a sponsor or savings, because most of the cost of coaching, travel and lodging falls on the player, week after week. Families who plan for one year of this usually discover they needed several.
- The body has to hold up. A professional season is a long run of back-to-back weeks on different surfaces and in different climates, with little recovery between matches. Plenty of talented players are stopped not by their level but by a shoulder, a back or a wrist that cannot take the load. Durability is built years earlier, in the physical training most juniors find boring.
- Losing most weeks. Tennis is a knockout sport: in every tournament, every player except the champion ends the week with a loss. At the lower levels a young professional can lose in qualifying several weeks running, far from home, with nobody watching, then pack a bag and do it again. The players who last learn to judge a week by how they competed and what they learned, not by the result.
What the players who made it had in common
When I think about the players I have coached who went on to the professional tours, what they shared was not what most parents would guess. It was rarely the biggest serve or the best results at 12. It was three things, and each one answers a hard part above.
One primary developmental coach, early. Sloane Stephens started working with me when she was 10; Genie Bouchard has worked with me throughout her career since she was 12. Neither was simply taking lessons. Each had a coach responsible for the long-term design of the game — technique, movement, physical development and competitive skills — through the years when that foundation is laid. I use Sloane's own words for the role:
I started working with Nick when I was 10 years old. He was my primary developmental coach… he has been part of my team at different times throughout my professional career.
Sloane Stephens, 2017 US Open champion
Work habits that did not depend on being watched. They trained with purpose when nobody was checking, did the physical work without being chased, and treated a bad loss as information. That is what carries a player through years of losing most weeks: a routine that does not need a good result to keep going.
Families who supported without smothering. In the families that got this right, the parents were heavily involved in logistics and lightly involved in tennis. They organized, paid, drove and encouraged, and they left the coaching to the coach and the results to the player. When a parent's mood rises and falls with the scoreline, the child starts playing for the parent, and that does not survive the hard years. There is more on striking that balance in the tennis parent guide.
Signs a junior is genuinely on track — and signs they are not
Parents often ask me for a ranking or a rating that proves their child is on track. There is no such number, and I would not trust anyone who offered one. These are the signals I actually look at, and they are qualitative on purpose.
- The gap to older and better players keeps closing. Not every match won — the scores against stronger, older opponents get tighter season after season.
- They play their best when the level rises. A player on track gets better in the hardest weeks. A player who is not gets exposed by them.
- The player owns the work. They ask for the extra session, do the physical training without reminders and come off court with questions.
- The whole game is still growing. Serve, return, movement, net play and decision-making are all improving, not just one weapon that is already fully grown.
- Losses produce curiosity. They are upset for an evening and asking what to fix by the next morning.
The warning signs are just as clear:
- Results depend on being bigger or earlier-developed than the age group. Early physical maturity wins a lot of junior matches, and then the rest of the age group catches up.
- One weapon carries everything, and opponents a level up have already learned to play around it.
- The drive lives in the parent. The player goes along with the plan rather than pulling the family toward it.
- Improvement has stalled for a long stretch despite good coaching and plenty of hours.
- The same injury keeps coming back. A body that breaks down under a junior schedule will not survive a professional one without real changes.
No single signal is a verdict, and a player can move from one list to the other in a season. That is why I tell families to get an outside assessment at every major fork, from a coach who has nothing to gain by flattering them. It is what our one-to-one evaluation is for: an honest read of the player's level, development opportunities and the pathway that fits.
Why college is a parallel road, not a consolation prize
I played my college tennis at Stanford, as an All-American on an NCAA Championship team, before my years on the ATP Tour, so I have never thought of college tennis as the place players go when the pro dream ends. For many players it is the smarter route to the tour: three or four more years of physical maturity, high-level coaching and a full competitive schedule, plus an education, at an age when most players are not yet ready for the professional grind anyway.
The two roads also demand the same training, so a junior does not need to choose between them early. Keep both open, let results in the late junior years make the call, and treat turning pro after college as a normal decision rather than a late one. The trade-offs are set out side by side in college tennis vs turning pro, and the mechanics of the jump itself are in how to turn pro in tennis.
What a family can do now
Then act on the answers. Build physical durability now, years before a professional schedule tests it. Judge progress by results against level, not by a ranking at 13. Keep school strong so the college road stays open. And make each big decision — going full-time, an international schedule, the first professional events — on evidence rather than hope. The whole pathway, stage by stage, is in how to become a professional tennis player.