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 2025 results, this is a small, friendly field, with a competitive front end and a big recreational middle.
13.1 Miles · 2025 results
76finishers
1:52:02winner
3:12:36median
5:30:42cutoff
Top 3: Mark von Hacht (1:52:02) · Jose Lorenzana (2:00:52) · Lucy Andrews (2:05:15)
4 Miles · 2025 results
53finishers
23:13winner
46:48median
1:31:20cutoff
Top 3: Andrew Wilkey (23:13) · Romain Nguyen (27:10) · Colton Rogers (28:58)
10 Miles · 2025 results
32finishers
1:24:19winner
2:28:58median
3:52:20cutoff
Top 3: Erin Gunther (1:24:19) · Athena Rodriguez (1:47:40) · Janice Ng (1:49:00)
30.4 Miles · 2025 results
29finishers
5:38:42winner
7:42:12median
9:46:59cutoff
Top 3: Jeff Clark (5:38:42) · Michael Palo (5:52:39) · katy pieri (6:11:27)
26.2 Miles · 2025 results
19finishers
4:37:19winner
7:10:58median
8:37:48cutoff
Top 3: Evan Gawlik (4:37:19) · Eugene Luppol (5:12:32) · Tyler Parnell (5:47:17)
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 Jul 27, 2026.
Distances & Start Times
4 Miles9/6/2026 08:15$50
10 Miles9/6/2026 08:00$60
13.1 Miles9/6/2026 08:00$70
26.2 Miles9/6/2026 08:00$80
30.4 Miles9/6/2026 08:00$90
50 Yards9/6/2026 07:50Free
2 Miles9/6/2026 08:25Free
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Where to Stay
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