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Life & fun · May 29, 2023

OpenWater

Open water swimming competitions made easy.

OpenWater launched on May 29, 2023 with 2 votes. The site was still online in September 2026, 3 years on.

What it does

Discover open water swimming competitions around the world in no time - your go-to resource for events, registration and community.

OpenWater is an open-source GPS speed and technique tracker for wingfoiling, parawinging, downwinding, windsurfing, kitesurfing and sailing. Every speed category, time on foil, gybe analysis and session replay — on iPhone and Apple Watch, with live wind, radar and webcams on Apple TV. No account, works offline.

OpenWater is a GPS speed and technique tracker for wingfoiling, downwinding, windsurfing, kitesurfing and sailing. Open source. Works offline. No account, ever. Every category the speedsurfing community actually uses: 2-second peak, best 10 seconds, 5×10s average, 100 m through 10 km, nautical mile, alpha 500, 30-minute and 1-hour averages — plus any custom distance you add, applied retroactively to sessions you already recorded. Speeds come from the receiver's Doppler measurement and are computed on the continuous track, not snapped to the nearest GPS fix — because one second of slop is ten metres at twenty knots. An hour of winging in a bay is forty passes through the same water — drawn…from openwaterapp.com

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