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Half Marathon Calendar near Petaluma 2026-2027

Monthly updates for Petaluma

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

Explore the top half marathons near Petaluma for 2026-2027! We've gathered 25 exciting races in the area. Check out our detailed list below to find your next local race.

February 2026
Feb
21
Sa

Beer City Half - Santa Rosa

5 km 10 km Half Marathon
Feb
28
Sa

Victory

5 km 10 km Half Marathon
March 2026
Mar
1
Su

Napa Valley Marathon

5 km Half Marathon Marathon
Mar
13-16
Fr - Mo

The Rattlesnake Ramble

Trail Run 5 km 10 km Half Marathon
Mar
21
Sa

Napa Valley Trail Marathon

Trail Run 6 mi 13 mi 26 mi
April 2026
Apr
4
Sa

Golden Gate Headlands Marathon

Trail Run 10 km Half Marathon Marathon
Apr
11
Sa

Romancing the Island Half Marathon

Trail Run 10 km Half Marathon
Apr
12
Su

Calistoga Mountain Run

Trail Run 10 km Half Marathon 35 km 50 km
Apr
18
Sa

Annadel Half Marathon

Trail Run 5 km 10 km Half Marathon
Apr
25
Sa

Mt. Tam Wild Boar Half Marathon

Trail Run 10 km Half Marathon
Apr
26
Su

Napa Spring Half Marathon

5 km Half Marathon
May 2026
May
9
Sa

Muir Woods Marathon

Trail Run 7 mi 13 mi 26 mi
May
9
Sa

The Wine Half Marathon

Trail Run 13 mi
May
16
Sa

Napa Wilderness Trail Runs

Trail Run 10 km Half Marathon 30 km 50 km
May
16
Sa

Wildcat Half Marathon

Trail Run 5 km 10 km Half Marathon
May
16
Sa

Windsor Half Marathon - USA

3 mi 6 mi 13 mi
May
23
Sa

China Camp Trail Run

Trail Run 3 mi 6 mi 13 mi
May
30
Sa

Nitro Trail

Trail Run 5 km 10 km Half Marathon
June 2026
Jun
28
Su

Mare Island Half Marathon

5 km 10 km Half Marathon
July 2026
Jul
18
Sa

Muir Woods Mountain Challenge

Trail Run 10 km Half Marathon 30 km