Aug 15, 2026 · 8:15 AM · Oakland, CA
Redwood (Summer) Trail Run
Half MarathonMarathonUltra
- Price
- Free-$96.40
Ultras in California
Every upcoming Ultra race we know about in California. Where a detail isn't confirmed, we mark it unknown rather than guessing.
Race results
Where
When
Showing 24+ of 51 races · loading the full list…
Aug 29, 2026 · 8:45 AM · Woodside, CA
SPASM Crystal Springs Trail Run
10KHalf MarathonMarathonUltra
- Price
- Free-$96.40
Sep 6, 2026 · 8:15 AM · Clayton, CA
Diablo Trail Run
10MHalf MarathonMarathonUltraflat and fast
- Price
- Free-$96.40
Sep 19, 2026 · 7:15 AM · Sausalito, CA
Gold Rush Adventure Challenge: Dawn to Dusk
Ultra
- Price
- Price on registration site
Oct 1, 2026 · 5:30 AM · Santa Cruz, CA
2026 Santa Cruz Sunrise Rotary Ride - 29th Annual!
Ultrarolling hills
- Price
- Price on registration site
Oct 3, 2026 · 7:30 AM · North Fork, CA
Grizzly Gravel & Century Charity Ride
Ultra
- Price
- Price on registration site
Oct 17, 2026 · 7:00 AM · San Diego, CA
Lake Hodges Trail Festival
1M5K10K15KUltra
- Price
- $16.90-$154.70
- Field size
- 40 · based on the organizer's entry cap
Oct 17, 2026 · 7:00 AM · Santa Barbara, CA
Ride Santa Barbara 100
Ultra2,500 ft gain
- Price
- Price on registration site
Oct 25, 2026 · 9:30 AM · Valencia, CA
Finish The Ride and Finish The Run Santa Clarita
5K10KUltra3,500 ft gain
- Price
- $11.60-$54
Nov 7, 2026 · 8:45 AM · Castro Valley, CA
Lake Chabot Trail Run
5KHalf MarathonMarathonUltra
- Price
- Free-$96.40
- Field size
- 591 · based on the organizer's entry cap
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