New app
New app: Koerske
Koerske launched on 31 Oct 2026: Free browser app for racing on your trainer through real Flemish streets, in closed beta.
Innovation: real Flemish roads with church towers and windmills rebuilt by hand in their real place
Visit koerske.beAll about Koerske
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About Koerske
Koerske rides real loops around Izegem, Ingelmunster and Lendelede in a stylised 3D world: the course, every metre of elevation and the waterways come from open data (the Digital Elevation Model of Flanders and OpenStreetMap, with cobbled sectors where they really are), the houses and fields are generated from the land use, and church towers, windmills and a castle are rebuilt by hand. The trainer follows the profile, smoothed and capped; cobbles take more power and the current wind is fetched at the start. Local segments for climbs, cobbles, sprints and bridges, a ghost rider at your target pace, your own segments from GPX, TCX or FIT files, teams, standings and Strava upload. New loops anywhere in Flanders are planned through its route builder. Runs in Chrome or Edge over Bluetooth (FTMS, Cycling Power, Tacx FE-C), and on iPhone and iPad in the Bluefy browser; you can also try it with the arrow keys. Free with no subscription. A closed beta: you join through an invitation link while places last. Made by Thomas Cappelle.
Features
- Routes
- Bots
Sends rides to
- Strava