Every distance. Every direction.
Finding your starting lines…
Race Atlas is an independent personal tool for exploring the UTMB Index. It is not affiliated with UTMB.
The UTMB feed provides place names, not starting-line coordinates. Markers show matching towns from GeoNames (CC BY 4.0). Names with multiple matches use the largest locality in that country and may be ambiguous. Races without a matched town remain in the calendar. Always check the organiser’s website for the exact start.
20K, 50K, 100K and 100M are UTMB effort categories, not exact distances. Use the distance and elevation filters to find the actual course profile. Unclassified records are included unless you select a category.
Filters run on your device. Data is a downloaded snapshot, not a live registration feed; dates and courses can change. Images are optional in the data model and are not supplied by the current feed.
Globe geometry: Natural Earth / world-atlas. Rendering: D3 (ISC) and topojson-client (ISC). No tracking. No account required.