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Trail Running Calendar near Fairfield 2026-2027

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Explore the top trail runs near Fairfield for 2026-2027! We've gathered 14 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.

November 2026
Nov
21
Sa

Nomadic 5k

Trail Run 5 km
11th Annual Nomadic 5K Trail Run at Arbolado Park in Walnut Creek on November 21, 2026, a community 5K with a walk option, Mongolian food and kids activities.
Nov
26
Th

Nitro Turkey

Trail Run 5 km 10 km
A Thanksgiving morning turkey trot at Point Pinole with 5K, 10K and a short kids sprint, plus a food drive supporting the Food Bank of Contra Costa & Solano.
Nov
26
Th

Benicia Hand Up Turkey Trot

Road Race Trail Run 2 mi
A community untimed run and walk at Benicia Community Park on Thanksgiving supporting the Tim and Jeannie Hamann Foundation and local cancer patients.
March 2027
Mar
7
Su

Artesa Wine Run 5k

Trail Run 5 km
A chip timed 5k run and walk at Artesa Vineyards and Winery on March 7, 2027, featuring two laps through the vineyard, event swag, a wine pour, and age group awards.
April 2027
Apr
3
Sa

Diablo Trails Challenge

Trail Run 5 km 10 km Half Marathon 50 km
Trail races near Mount Diablo on April 3, 2027 with multiple distances and a portion of entry fees supporting Save Mount Diablo.
Apr
17
Sa

Call of the Wild Half Marathon

Trail Run 5 km 6 mi Half Marathon
Trail races at Jack London State Historic Park featuring a half marathon, 5.5 mile and 5K through vineyards and Sonoma Mountain hills.
Apr
18
Su

Viansa Wine Run 5K

Road Race Trail Run 5 km
Chip timed 5K at Viansa Winery in Sonoma on April 18, 2027, including a t shirt, plastic wine glass, finisher medal that doubles as a wine stopper, and a wine pour.
May 2027
May
8
Sa

The Wine Half Marathon

Trail Run 13 mi
A timed half marathon on May 8, 2027, from Quintessa Winery to Yountville with exclusive vineyard access, festive aid stations, and a finish-line Wine Village.
May
8
Sa

Grizzly Peak Trail Run

Trail Run 2 mi 10 km ... 26 mi 50 km
May
15
Sa

Napa Wilderness Trail Runs

Trail Run 6 mi 14 mi 18 mi 52 km
May 15 2027 trail races at Skyline Wilderness Park in Napa offering 10K, 21K, 30K and a long ultra with on course aid and camping options.
May
15
Sa

Rim Rock 50 Mile Trail Challenge

Trail Run 25 mi 50 mi
A trail ultra in Napa on May 15, 2027 with a full 50 mile course and a new one loop 25 mile option across Skyline Wilderness Park and Suscol Headwaters.
May
15
Sa

Wildcat Half Marathon

Trail Run 3 mi 6 mi 13 mi
A race day in El Sobrante with a half marathon, 10K, 5K and a hiker division through the hills of Wilcat Canyon; registration windows and fees vary by distance.
May
23
Su

Diablo Trail Run

Trail Run 4 mi 10 mi ... 26 mi 50 km
Trail races at Diablo State Park in Clayton, CA, with distances from a 50 yard kids dash to a 50K, measured with a Rolatape surveyor's wheel.
June 2027
Jun
12-13
Sa - Su

Bay Area 100

Trail Run UTMB 100M 100 mi
A point-to-point 100 mile ultramarathon in the East Bay with about 18,000 ft of gain, a 33 hour cutoff, scheduled for June 12, 2027.
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