KeeperCircle

KeeperCircle turns your field hockey session into clear, visual performance analysis. Outfield trackers tell you how far you ran. They don't show where you stood in the D, how much of the circle you covered, or where it gets penetrated most. KeeperCircle does. Import a workout from Apple Health, a GPX file, or your Garmin device, and KeeperCircle maps your movement onto the real geometry of the pitch. WHAT YOU GET - Pitch heatmap — see exactly where you spent your time on the field, and find out if you're a wanderer - Movement track and replay — scrub through your session at 0.5x–4x speed - D-zone analysis (for goalkeepers) — time spent in each shooting-circle zone: 9-yard box, baseline left/right, centre left/right, for both ends - Inside vs outside the circle — see exactly how much of your distance and time was spent in the D, not just your totals - Circle work, measured — circle distance, circle time, stationary time and idle time in the D, plus a circle variability score (Low / Moderate / High) for every session - Heart-rate zones — personalised using the Karvonen method from your age and resting heart rate, not a generic age formula - Metrics cards — total distance, total time, max and average speed, and average and max heart rate - Satellite view — your GPS trace and heatmap over a real aerial photo of the pitch HOW IT WORKS KeeperCircle recognises the field you played on automatically and overlays accurate pitch lines and shooting circles. Played somewhere new? Map the field once and it's saved for next time. IMPORT FROM ANYWHERE - Apple Watch — recorded workouts sync automatically via Apple Health - Garmin — connect once and new sessions sync automatically - GPX files — import manually Made for keepers, not adapted for them — the GK-specific detail you've never gotten from a regular running app. And built for outfield players too, who want to understand and improve their game.