Swing speed · Auto-paired matches · Rated rivalries
Every swing
counts.
Crossrally turns your Apple Watch into tennis telemetry — swing speed, stroke counts, session intensity — and turns your hitting circle into a ladder. Matches auto-pair when you and a friend finish on the same court. One tap confirms the score. The rivalry record writes itself.
fastest forehand
184
forehands
132
backhands
41
serves
Did you just play Mike?
Tennis — 1h 24m — same court, same hour
How it works
Play
Start a Tennis workout on your Apple Watch and just play. Your wrist quietly logs swings, speed, and intensity while you rally — no phone at the net post.
Pair
When you finish, Crossrally checks which of your friends logged an overlapping workout on the same court — and suggests them.
Confirm
First player enters the score, the other taps confirm. Two-sided truth: nothing counts until you both agree it happened.
iPhone + Apple Watch
Inside the app
The whole loop on three screens: the session your watch recorded, the match it noticed, the rivalry it feeds.
Tonight
1h 24m
Tuesday session
Wilson Park · Court 4
mph
fastest forehand
Did you just play Mike?
Same court · overlapping workout
Final score
Rivalry
You vs Mike
- Current streak
- W3
- Biggest win
- 6-1, 6-2
The ladder · your circle
- 1Sarah1671
- 2You1612
- 3Mike1540
mph last swing
357
strokes
132♥
bpm
On the court there is no app to open. Your watch runs a normal Tennis workout — Crossrally does the rest after.
72 mph
fastest forehand
357
strokes tonight
41
serves in
zone 3
avg intensity
Your game,
in numbers
- →Swing speed on every forehand, backhand, and serve — read straight from the watch you already play in.
- →Stroke counts, time on court, and session intensity logged automatically. You play; the numbers happen.
- →Runners get their splits. Cyclists get their watts. Your tennis finally gets its numbers.
Your hitting circle
is now a ladder
- →Lifetime head-to-head against every regular hitting partner — record, streaks, biggest win.
- →A Crossrally Rating that climbs only on confirmed matches, computed on our servers — not vibes, not self-reports.
- →Weekly leaderboards across your friends. Somebody is on top of the group chat. Make sure it’s you.
- →Your health data stays on your device. We match on time and coarse court location — never heart rate, never GPS traces.
Head-to-head
- Current streak
- W3
- Biggest win
- 6-1, 6-2
The ladder · your circle
- 1Sarah1671 ↑
- 2You1612 ↑
- 3Mike1540 ↓
Ratings move only on confirmed matches.
Get on the list
Crossrally is coming to iPhone + Apple Watch. First invites go to players who can put swing tracking and auto-pair to work — so tell us if you play with a watch.
Your email is used to send the invite, nothing else. No spam, no sharing, delete on request.