The player
Three things, and no dashboard:
- One thing to work on, in the coach's words, cited to the second he said it.
- "Did it feel like that?" — one tap. A player, not an audience.
- Whether it is working: their own pattern moving, week to week.
four weeks · everyone plays everyone · seeded by eye
The box league your coach actually watches.
Box leagues have run in clubs for forty years: four players, everyone plays everyone, a fixed end date, then promotion and relegation. What is usually missing is a person doing the seeding — most run on results alone, so a pusher climbs into a box he does not belong in and a good player has one bad cycle and gets buried. Your coach fixes that by eye.
How a box runs
- Day 0The box is set. Four players of roughly a level. A coach can fill it from his own students, or match his three with another coach's ten. The schedule exists the moment the box exists: everyone plays everyone. Nobody has to arrange anything, and nobody gets turned down.
- Weeks 1–4They play. Three opponents they will see again, so flaking costs something. Scores go in from a phone, or by calling the league line.
- Any matchThe coach shows up. He films thirty seconds, pauses where it matters, and says one sentence — the thing he was going to say anyway. Haven files it against the right player, timestamped, in his words.
- Day 28The reshuffle. Promotion and relegation on results, corrected by what the coach saw. That correction is the whole product, and it is why the next cycle starts full.
What each person gets
The parent
One page a month, built only from what the coach chose to share. No scores dressed up as progress, no opinions the coach did not give. It is the report card tennis has never had — and it is why the next block gets booked without anyone having to ask.
The coach
You type nothing. Ten seconds of talking per match, one tap on a proposal. Your keys, your voice, your roster; your private notes stay private and leave with you. You keep 25% of any player premium you attach, and the league gives you a reason to be on court where your next students already are.
the thing that makes a parent re-book
A month, on one page
Every line on it is something a person said or something the matches actually recorded. No AI opinion appears on this page. The coach approves it before it goes out.
September3 matches · Coach Phil
- His key this month
- “Meet it out front.”
- Pattern at the start
- 8 of 14 forehands long
- Pattern now
- 3 of 15
- Settled by the coach
- Sept 21
- Next
- Recovery step
no app needed to play
Call the league line and get a match
Players who do not want another app can just ring the club's line, say their level and when they can play, and get put in a box. Scores can go in the same way. Every club gets its own number and its own address: yourclub.haven.tennis.
And when he wants to show you
Pausing the clip reconstructs the body from that frame — joints, angles, the whole shape, turnable. It carries no face and no footage, so it can travel where a video of a junior never should. It is evidence for what the coach said, and it appears when he points at something. Never a verdict, never a number nobody measured.
Coaches
Run a box for your students, or fill one with another coach's players. Twenty minutes on a court to see it. Pros pay nothing.
Your booking link works on day one: haven.tennis/yourname/book-lesson-60 — players pick a slot, confirm by email code, and a real calendar invite lands in both calendars.
Clubs and academies
$99 per pro seat per month, pilot rate. Pros pay nothing; player premium $9.99 with the coach keeping 25%. Your own address (yourclub.haven.tennis), your own league line, one consent flow for juniors, and a de-identified roster that stays yours when a pro moves on.
Players and parents
Tell us your club and we will put you in the next box there, or reach the club if they are not running one yet. Enter your own name, not your child's.
What it will never do
Say what your coach did not say. Invent a measurement. Grade your coach. Show a minor publicly. Push anyone through pain.