Coming soon · Beach volleyball 2v2
Put one phone on a tripod behind the court. Kairos turns every rally into 3D, with the ball and all four players placed to within 10 cm, then hands you the play-by-play, the stats and the coaching.
No sensors. No wearables. Nothing on the players.
How it works
On a tripod behind the baseline, filming the whole court. Hit record and forget it.
Optional: a second phone taps rally start, rally end and who won the point. Your score sheet writes itself.
After the game: the full play-by-play, team stats, a report for every player and the clips that matter.
Features
Serve, reception, set, attack, dig: who played it, when, and how fast the ball left the hand. The whole rally from the first serve to the last ball on the sand, ready before you've packed the net.
Attack speed. Contact height and how far above the net. Jump. Time to react. Measured on every touch, not guessed from the stands.
One real attack, from one phone.
The numbers coaches already use, filled in for your games: points won when receiving and when serving, first attack after the pass, counter-attack after a dig, aces and errors, serve speed, metres run per rally.
Compared with the other players in the same game, so the numbers mean something at your level.
Each player gets their weakest example of every action rebuilt in 3D, next to the cues a coach checks, each graded. Then what to change, shown on the body.
Next session: land your last two steps earlier, so the jump goes up, not forward.
Every serve, attack and set as a clip, in landscape or vertical for stories.
Your own shot lines on the court: the line, the cut, the ones that hit the net.
Distance, time in play, metres per rally and where you spend the point.
Built for beach 2v2 first: four players, one ball, open sky.
Accuracy
That's the bar: the ball and every player placed within 10 centimetres, from a single phone you already own. Close enough to tell a cut shot from a line shot, and a good jump from a great one.
How we hold ourselves to it: we film the same games with four synced phones as well, a reference good to about a centimetre, and check every number against it. One phone is the product. The four are the ruler.
Who it's for
See your own game the way a coach does, and know what to work on next.
Every touch of every player, graded, with the clip and the cue. Less time with the notebook.
Stats for every team on every court, from one phone per court.
Early access
We're testing on real games now. Join the waitlist and we'll write when Kairos is ready for your court.
One email when there's something to show. No spam, no sharing your details.
Questions
A phone that films 1080p at 60 frames per second, and a tripod. Nothing on the players, nothing on the ball.
We're testing on real games now. People on the waitlist get in first.
Beach 2v2 first. Indoor comes later.
Keep them to tell you about Kairos, and nothing else. Ask and we delete them. The short privacy notice.