10K races in California, United States — 2026 running calendar

Brian Waterbury Memorial Rock to Pier Run

Morro Bay, California, United States

Jul 18, 2026 (Sat)

Running

10K 9.7K Half-Marathon

Peach Festival 5k/10k

Marysville, California, United States

Jul 18, 2026 (Sat)

Running

5K 10K

Jolly10K

Los Gatos, California, United States

Jul 18, 2026 (Sat)

Running

10K 6.4K

Bad Bass

Castro Valley, California, United States

Jul 18, 2026 (Sat)

Running

Half-Marathon 10.3K 5.4K

Davis Moonlight Run

Davis, California, United States

Jul 18, 2026 (Sat)

Running

5K 10K Half-Marathon 2K +1

Muir Woods Mt. Challenge

Stinson Beach, California, United States

Jul 18, 2026 (Sat)

Running

29.9K Half-Marathon 10K

Coveathlon #2

Newport Beach, California, United States

Jul 16, 2026 (Thu)

Swimrun, Swimming, Running

6K 1K 5K 10K +1

LBC Summer Breeze – 5K, 10K, 10M, and Half Marathon

Long Beach, California, United States

Jul 12, 2026 (Sun)

Running

5K 10K 15K Half-Marathon

CaliFlow Poker Run: High Stakes & Happy Tails 5K. 10K. 1 Miler

Long Beach, California, United States

Jul 12, 2026 (Sun)

Running

5K 1.6K 10K

Fritchey Farms Presents: The Acres 10k

Ramona, California, United States

Jul 12, 2026 (Sun)

Running

10K

Strides in Recovery Community Event

Long Beach, California, United States

Jul 12, 2026 (Sun)

Running

5K 10K 16.1K Half-Marathon

San Lorenzo River Trail Run

Santa Cruz, California, United States

Jul 11, 2026 (Sat)

Trail running, Running

10.1K Half-Marathon 30K Marathon +3