Heart rate meets win probability
One chart, two lines. See your BPM climb as the win probability swings, play by play.
iPhone · Apple Watch · Garmin
See your heart rate on the game's win-probability chart.
Your pulse, on the same timeline as the game. Every spike lines up with the play that caused it, so you can finally prove how stressful that fourth quarter really was.
Try the web app Join the beta
Made for the way you watch
Game Stress Score
A 0–100 score for how hard the game hit you, plus your Top 5 moments with Joy and Agony labels.
Bring your own heart rate
Apple Health, Garmin via Apple Health, FIT/TCX/GPX/CSV imports, or a labeled demo. Tip: start an activity on your Garmin at kickoff for 1-second HR.
My Season & rivals
Save games and see which rival stresses you out most, and your biggest spikes of the year.
Share cards
Story and square cards in team colors. Text and numbers only, no broadcast footage.
Four sports
College football, NBA, men's college basketball and NHL. Demo reports work offline.
A look inside
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