Running races in Geyserville, United States
1 marathon and 2 ultras in Geyserville.
The next one is the Lake Sonoma 100 Mile on 17 October 2026.
For cool racing conditions, the Lake Sonoma 50 usually starts around 12°C.
🇺🇸 Geyserville, United States
Lake Sonoma 100 Mile
17 Oct 2026In 6 days
Gain
7,640 m
Start temp
12°C
Entry
$435
161.7 kmTrailOpen entryhilly
🇺🇸 Geyserville, United States
Lake Sonoma 50
17 Oct 2026In 6 days
Gain
3,235 m
Start temp
12°C
Entry
$235
82.9 kmTrailOpen entryhilly
🇺🇸 Geyserville, United States
Lake Sonoma Trail Marathon
17 Oct 2026In 6 days
Gain
1,800 m
Start temp
12°C
Entry
$175
43.1 kmTrailOpen entryhilly
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