Name: Diablo Trail Run
Start: 2026-09-06
End: 2026-09-06
Location: Clayton, California

Races Offered

Kid's Run (6yo & younger, 50yd dash) - Free!

Sep 06, 2026

straighten

Distance — 50 Yards

terrain

Type — Running

timer

07:50

sell

$0.00

10 Mi

Sep 06, 2026

straighten

Distance — 10 Miles

terrain

Type — Running

timer

08:00

sell

$60.00

50K

Sep 06, 2026

straighten

Distance — 30.4 Miles

terrain

Type — Running

timer

08:00

sell

$90.00

Half Marathon

Sep 06, 2026

straighten

Distance — 13.1 Miles

terrain

Type — Running

timer

08:00

sell

$70.00

Marathon

Sep 06, 2026

straighten

Distance — 26.2 Miles

terrain

Type — Running

timer

08:00

sell

$80.00

4 Mi

Sep 06, 2026

straighten

Distance — 4 Miles

terrain

Type — Running

timer

08:15

sell

$50.00

Coastal Testing

Sep 06, 2026

straighten

Distance — 2 Miles

terrain

Type — Running

timer

08:25

sell

$0.00

Weather Overview

These values represent the 3-year monthly averages for September in Clayton.

Temp (°C)

Feels Like (°C)

thermostat 15.1° / 29.0°

wb_sunny 13.4° / 26.5°

Wind (km/h)

Humidity (%)

air 12.7 /

water_drop 61.2%

Temp (°C)

Feels Like (°C)

Wind (km/h)

Humidity (%)

thermostat 15.1° / 29.0°

wb_sunny 13.4° / 26.5°

air 12.7 km/h

water_drop 61.2%

About Clayton

Clayton is a small suburban town in the East Bay of the California Bay Area, in Contra Costa County.

Hotels & Places to Stay

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Diablo Trail Run

About the Event

Mount Diablo provides spectacular views of the San Francisco Bay Area and surrounding valleys. The 4 mile course is relatively flat and fast within Mitchell Canyon. The longer events are mountainous and very scenic.

(Distances are accurately measured using a Rolatape® surveyor's measuring wheel.)

Races Offered