About the data
The courts
Court locations, surfaces, lighting, and fees come from OpenStreetMap, (c) OpenStreetMap contributors, available under the Open Database License. We cluster adjacent pitches into court sites, currently 759 of them, and refresh monthly. This copy was refreshed July 14, 2026.
Walk-on odds
The walk-on line on each court comes from player reports: two taps after you play. We only make a claim for a time slot once at least three people have reported on it in the last ninety days, and we say it in words because the data is too thin for percentages. No reports means we say that instead of guessing.
Mistakes
Courts close, get resurfaced, or grow fees. If something here is wrong, tell us and we'll fix it in the next refresh. Fixing it on OpenStreetMap itself helps every map, not just ours.