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Court Rally
An AI coach that keeps your real coach in the loop
An AI coach for racket sports — table tennis, tennis, badminton, pickleball. It writes your training week like a pro would, reads ten seconds of phone film frame by frame and comes back with what's working, the one fix that matters and the drills to fix it, and keeps your real coach in the loop: they review clips, propose lessons and book you. Reminders and notifications for every session. Real reads with their frames at courtrally.fun/sample. Free to start; packs never expire.
Hi Product Hunt — I'm Sam, and I built Court Rally for my nine-year-old, who trains on a table tennis robot an hour a day.
The problem was never motivation. It was that between weekly lessons we had no plan and no feedback. I'd film him, watch the clip, and not know what I was looking at. His coach could tell in two seconds — but only on lesson day.
So I built the thing I wanted: a plan for the week that a coach would recognize, and a read of the film that says the one thing to fix, in words I can repeat at the table. Then his coach asked if he could see the reads too, and the app grew a coach side: lessons, proposals, a schedule, a club
desk.
Two design choices I'd defend:
- The read says what it can't see. A checkpoint the frames don't show is marked "can't tell", never guessed. We'd rather be useful than confident.
- The human coach stays. This isn't a replacement for a coach; it's what happens between lessons, and it hands the coach better information.
It covers table tennis, tennis, badminton and pickleball. The four sample reads at courtrally.fun/sample are real clips, real output, with the frames shown. I'd genuinely like to hear where the reads are wrong — that's how the prompt got as good as it is.
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About Court Rally on Product Hunt
“An AI coach that keeps your real coach in the loop”
Court Rally was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #137 on the daily leaderboard. An AI coach for racket sports — table tennis, tennis, badminton, pickleball. It writes your training week like a pro would, reads ten seconds of phone film frame by frame and comes back with what's working, the one fix that matters and the drills to fix it, and keeps your real coach in the loop: they review clips, propose lessons and book you. Reminders and notifications for every session. Real reads with their frames at courtrally.fun/sample. Free to start; packs never expire.
Court Rally was featured in Android (57.6k followers), Health & Fitness (83.2k followers), Sports (11.4k followers) and Artificial Intelligence (479.1k followers) on Product Hunt. Together, these topics include over 206.9k products, making this a competitive space to launch in.
Who hunted Court Rally?
Court Rally was hunted by Sam Wang. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Sam Wang