SPASM Lake Chabot Trail Run
Sat, Apr 17, 2027 · in 6 months Castro Valley, CA
MarathonHalf marathon
Race website & registration Your chances
Where would you finish?
Enter your race pace or connect Strava, and raceIQ compares you with this race's past finishers in your age group and gender.
See your predicted place7th
of ~140
Age group
Finish times
From the most recent results at each distance.
| Distance | Finishers | Winner | Top 5% | Top 25% | Median |
|---|---|---|---|---|---|
| Marathon (2026) | 13 | 4:15:32 | 4:20:41 | 4:51:54 | 5:24:03 |
| Half marathon (2026) | 62 | 1:45:10 | 1:51:00 | 2:07:09 | 2:37:46 |
| 5K (2025) | 114 | 25:42 | 28:49 | 38:14 | 50:29 |
Field strength
5KCasual
Faster up front than 2% of the 5K races we track, based on 114 finishers over 1 edition.
Half marathonCasual
Faster up front than 7% of the half marathon races we track, based on 171 finishers over 3 editions.
MarathonCasual
Faster up front than 5% of the marathon races we track, based on 53 finishers over 3 editions.
Finishers by year
| Year | Half marathon | Marathon | 5K |
|---|---|---|---|
| 2026 | 62 | 13 | — |
| 2025 | 55 | 14 | 114 |
| 2024 | 54 | 26 | — |
| 2022 | 93 | 22 | — |
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