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5K10KOtherTrail

Reservoir Dogs 2026

Date
Saturday, October 10, 2026
Start time
8:00 AM start (Los Angeles)
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Official race website

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Events and entry fees

EventDistanceWhenEntry feeCap
35KOtherOct 10, 20268:00 AMSee registration–
Half MarathonOtherOct 10, 20268:00 AMSee registration–
10K10KOct 10, 20268:30 AMSee registration–
5K5KOct 10, 20268:45 AMSee registration–

Entry fees exclude processing fees. Prices and dates come from the race's registration page and refresh nightly.

Race day planning

What a typical finish looks like

A typical finisher at a 10K in California runs 1:15:54, about 12:13 a mile, based on 43 races with published results. Women typically finish in 1:21:47 and men in 1:08:56.

Light and altitude

Sunrise on race morning is at about 7:11 AM, and the 35K starts at 8:00 AM. The start sits about 230 feet above sea level.

Fees exclude processing fees. Comparisons use current entry fees and published results from races nearby.

Start location and course

7301 San Pablo Dam Rd, El Sobrante, CA 94803

The pin marks the address the race lists, which is usually the start. The organizers have not shared a course map with us yet.

Half Marathon

95
finishers
2:37:33
median (11:20 /mi)
1:30:51
winning time
39% / 61%
women / men
median 2:37:331:32:244:26:56
Finish times, fastest to slowest. Each bar is a slice of the field; the dashed line is the median.

10K

75
finishers
1:07:55
median (10:57 /mi)
42:23
winning time
55% / 45%
women / men

35K

37
finishers
4:20:24
median (11:08 /mi)
2:38:51
winning time
28% / 72%
women / men

Aggregated from official results (Inside Trail Racing) for Reservoir Dogs. Individual finisher names are not stored here.

How fast do you need to be at Reservoir Dogs?

At the 2025 Half Marathon, the fastest tenth finished in 2:00:50 or better, the top quarter in 2:16:50, and half the field in 2:37:33; the last tenth came in after 3:26:11.

At the 2025 10K, the fastest tenth finished in 53:43 or better, the top quarter in 59:12, and half the field in 1:07:55; the last tenth came in after 1:30:37.

At the 2025 35K, the fastest tenth finished in 3:33:06 or better, the top quarter in 3:45:57, and half the field in 4:20:24; the last tenth came in after 5:33:39.

Third place by age group, 2025 Half Marathon
AgeWomenMen
20-292:18:261:54:27
30-39n/a1:59:27
40-492:32:412:02:54
50-592:46:37n/a
60-692:31:262:37:33

Groups with fewer than five finishers are left out. Awards vary by race; check the race's rules.

What would my time get me?

Where a finish time would have placed in 2025.

Finishers by year

Up 29 percent since 2023.

All events combined, from official results.

Reservoir Dogs Other year by year

From 2023 to 2025, the field went from 50 to 95 finishers, and the median time dropped from 2:45:21 to 2:37:33.

YearFinishersMedianFastest tenthWinner
202595 (+94%)2:37:33under 2:00:501:30:51
202449 (-2%)3:50:47under 3:03:412:37:01
2023502:45:21under 2:12:111:54:00

From each year's official results for the Other; virtual options are left out.

How fast is it?

Faster than most California trail 10Ks

The fastest quarter of the 2025 10K field finished under 59:12, against 1:06:32 in a typical California trail 10K, so times here run 11 percent faster.

Compares the fastest quarter of each field, so walkers and first-timers do not skew it. It reflects the course and the field together: a flat course, cool weather, or a competitive crowd all make times faster.

Typical race-day weather

Around October 10 the day usually runs from 55°F at dawn to 72°F in the afternoon, with measurable rain on about 3% of days. Cold snaps dip to 51°F and hot years reach 87°F.

Based on 75 days within a week of the date over the last 5 years, from historical weather for the start area. Not a forecast.

Race details

Where
7301 San Pablo Dam Rd, El Sobrante, CA 94803Map
Course
Trail
Start elevation
About 230 feet
Distances
5K, 10K, Other
Editions
2026 (Oct 10, 2026), 2025 (Oct 4, 2025), 2024 (Jun 8, 2024), 2023 (Jul 15, 2023), 2017 (Jul 1, 2017)

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Plan your race

Quick answers

When is Reservoir Dogs?
Saturday, October 10, 2026, starting at 8:00 AM.
How much does it cost?
See the registration page for current pricing.
What distances can I run?
5K, 10K, Other.
How big is it, and how fast?
In 2025, 95 runners finished the Half Marathon; the median finish was 2:37:33 and the winner ran 1:30:51.
Is it a fast course?
The fastest quarter of the 2025 10K field finished under 59:12, against 1:06:32 in a typical California trail 10K, so times here run 11 percent faster.
Where does it start?
7301 San Pablo Dam Rd, El Sobrante, CA 94803.

From the organizers

The Reservoir Dogs Trail Race is the first trail-running event allowed to completely circumnavigate the Briones Reservoir on the serene–and usually “permit-only”–East Bay Municipal Utility District (EBMUD) trails.Most trail runs are inherently beautiful, but this course offers more rolling open fire roads and boasts a nice progression of quintessentially East Bay environments, along with tree covered single-track and sweeping views of the watershed lands. Briones Reservoir is also one of the few EBMUD properties that has a substantial length of single-track trail. The 10K, Half Marathon and 35K courses are faster than other Inside Trail races because they have less elevation but they are consistent in a design intended to push each runner.

Read the full description on RunSignup