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Trail Running Calendar near Mill Valley 2026-2027

Monthly updates for Mill Valley

Get new running races (and updates) in your inbox every month.

Explore the top trail runs near Mill Valley for 2026-2027! We've gathered 36 exciting races in the area. Check out our detailed list below to find your next local race.

January 2026
Jan
24
Sa

Pacifica Foothills Trail Run

Trail Run 6 mi 13 mi 19 mi
Jan
24-25
Sa - Su

Golden Gate Trail Classic

Trail Run 15 km 25 km 50 km 50 mi
February 2026
Feb
7
Sa

Golden Gate Trail Run

Trail Run 8 km Half Marathon ... Marathon 50 km
Feb
14
Sa

Bay Breeze - San Leandro

Trail Run 5 km 10 km Half Marathon
Feb
21
Sa

Redtail Ridge

Trail Run 5 km 10 km ... 30 km 50 km
Feb
21
Sa

Montara Mountain Trail Run

Trail Run 10 km 13 mi ... 26 mi 50 km
Feb
21
Sa

Wild Goose Chase Lime Ridge 10K

Trail Run 5 km 10 km
March 2026
Mar
1
Su

Zoom Angel Island

Trail Run 5 mi 10 mi 15 mi
Mar
14
Sa

Marin Ultra Challenge

Trail Run 31 mi 50 mi
Mar
15
Su

The Rattlesnake Ramble

Trail Run 5 km 10 km Half Marathon
Mar
20-22
Fr - Su

The Big Alta

Trail Run 28 km 50 km 100 km
Mar
21
Sa

Redwood (Spring) Trail Run

Trail Run 5 km 5 mi ... Marathon 50 km
Mar
22
Su

Lag Bon 10K

Trail Run 10 km
April 2026
Apr
4
Sa

Golden Gate Headlands Marathon

Trail Run 6 mi 13 mi 26 mi
Apr
4
Sa

Diablo Trails Challenge

Trail Run 5 km 10 km Half Marathon 50 km
Apr
11
Sa

Romancing the Island Half Marathon

Trail Run 10 km Half Marathon
Apr
11
Sa

Lake Chabot Trail Run

Trail Run 8 km Half Marathon ... Marathon 50 km
Apr
25
Sa

Mt. Tam Wild Boar Half Marathon

Trail Run 10 km Half Marathon
May 2026
May
2
Sa

Miwok 100K

Trail Run 62 mi
May
9
Sa

Muir Woods Marathon

Trail Run 7 mi 13 mi 26 mi