About the Diablo Trail Run
The shortest course here stays mostly flat through Mitchell Canyon on dirt road, moving fast through open terrain. The longer distances climb seriously into the mountain, gaining enough elevation that the half marathon and beyond involve real singletrack and sustained effort. At the top end, the course is genuinely mountainous, not just rolling.
Check-in happens race morning at the Mitchell Canyon Trailhead. Arrive well before your start time to get your bib. There is a parking fee at the state park gate, so bring exact change. You can leave non-valuables near the start if needed.
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Finish-Time Stats
Going by the 2026 results, this is a small, friendly field, with a competitive front end and a big recreational middle.
13.1 Miles · 2026 results
70finishers
2:02:27winner
3:04:03median
5:51:41cutoff
Top 3: Erin Gunther (2:02:27) · Tsuyoshi Kohlgruber (2:05:00) · Hania Thomas-Adams (2:05:53)
4 Miles · 2026 results
44finishers
26:33winner
42:13median
1:45:44cutoff
Top 3: L. Stussi (26:33) · Romain Nguyen (26:54) · Jayden An (28:25)
10 Miles · 2026 results
33finishers
1:19:33winner
2:20:36median
3:36:46cutoff
Top 3: Andrew Wilkey (1:19:33) · David DeGusta (1:29:49) · Matthew Wheeler (1:40:36)
30.4 Miles · 2026 results
33finishers
6:04:08winner
7:30:37median
10:17:32cutoff
Top 3: Jeffrey Merrick (6:04:08) · Joel Ruhland (6:18:26) · Yiqiao Wang (6:20:01)
26.2 Miles · 2026 results
25finishers
4:26:45winner
6:33:55median
8:50:00cutoff
Top 3: Jose Lorenzana (4:26:45) · Vilgai Cruz (4:38:12) · Brian Gomberg (5:06:34)
The Diablo Trail Run has been held every year since at least 2021. That is as far back as RunSignup's records for this race go, so it may well be older.
How we calculate these stats: RunSesh calculates these figures from the most recent published results of past editions, sourced from RunSignup. We show aggregates only: field size, winning and median times, and the cutoff. We never publish individual finisher tables. Last updated Sep 26, 2026.
Distances & Start Times
4 Miles5/23/2027 08:15$50
10 Miles5/23/2027 08:00$60
13.1 Miles5/23/2027 08:00$70
26.2 Miles5/23/2027 08:00$80
30.4 Miles5/23/2027 08:00$90
50 Yards5/23/2027 07:50Free
2 Miles5/23/2027 08:25Free
Going for a Time?
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Where to Stay
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