Lake Sonoma TS 13.1 Mile is a 21.0 km trail race of Lake Sonoma 2026 in Geyserville, United States. The race starts on April 11, 2026. The course climbs 710 m+ and descends 834 m−, between a low point of 71 m and a high point of 268 m. By gradient, 34% of the distance is uphill, 38% downhill and 28% flat. The longest climb runs 1.3 km at an average 3.6% grade (47 m of vertical). The longest descent runs 1.4 km at 3.4% (47 m of vertical). Surface: 87% trail and 6% road. Flat-equivalent effort: 23.8 FlatKM.
This page has the interactive elevation profile, gradient matrix, pacing and nutrition planner and weather climatology for Lake Sonoma TS 13.1 Mile.
Other distances of Lake Sonoma 2026Lake Sonoma LS 100k (100 km)·Lake Sonoma LS 50k (50.0 km)
