Geyserville, California · Trail
Lake Sonoma 2027
Distances
100K
- Distance
- 100 km (62 mi)
- Vert gain
- 15,000 ft (4,600 m)
- Start
- 5:00 AM GMT-7
- Cutoff
- 19 hr
WSER 2028 qualifier (sub-19:00)
50K
- Distance
- 50 km (31 mi)
- Vert gain
- 5,700 ft (1,700 m)
- Start
- 7:30 AM GMT-7
- Cutoff
- 11 hr
| Distance | Vert gain | Start | Cutoff | Notes |
|---|---|---|---|---|
| 100 km (62 mi) | 15,000 ft (4,600 m) | 5:00 AM GMT-7 | 19 hr | WSER 2028 qualifier (sub-19:00) |
| 50 km (31 mi) | 5,700 ft (1,700 m) | 7:30 AM GMT-7 | 11 hr | — |
Every year
- 2027April 10, 2027 · upcoming
- 2026April 11, 2026 · completed100K: Ryan Sullivan 8:36:09 · Fiona Pascall 10:13:24; 50K: Robbie Simpson 3:39:39 · Hannah Allgood 4:19:36