Races in California, United States

October

• Oct 28 Machete Muertos 200 (200 mi) Perris · Ultra (200 mi) Trail Ultra (200 mi)
• Oct 28 Hauntington Park 5K 2026 (3.1 Miles) Huntington Park · 5K 5K
• Oct 28 Machete Muertos 200 (100 mi) Perris · Ultra (100 mi) Trail Ultra (100 mi)
• Oct 28 Machete Muertos 200 (20 mi) Perris · 20 mi Trail 20 mi
• Oct 28 Machete Muertos 200 (10 mi) Perris · 10 mi Trail 10 mi
• Oct 30 DIA DE LOS MUERTOS HALF MARATHON & 5K RUN/WALK (BAKERSFIELD) Bakersfield · Half Marathon Half Marathon
• Oct 30 2026 SCIAC XC Championships (8K) Claremont · 8 km 8 km
• Oct 30 2026 SCIAC XC Championships (6K) Claremont · 6 km 6 km
• Oct 30 2026 Lake Casitas Short Course Championships (Middle School Racer Sign Ups ONLY) (1.9 Miles) Ventura · 1.9 mi 1.9 mi
• Oct 30 KHS John Seaman Invitational (3 Miles) Kingsburg · 3 mi 3 mi
• Oct 30 USS Hornet Halloween 5k (3.1 Miles) Alameda · 5K 5K
• Oct 31 Howl-o-ween Doggie Dash 5K (3.1 Miles) Los Angeles · 5K 5K
• Oct 31 Northgate Market 5K (1K) Anaheim · 1K 1K
• Oct 31 Northgate Market 5K (5K) Anaheim · 5K 5K
• Oct 31 Foothill Presents: Nightmare on Hart Park Lane 5K (5K) Bakersfield · 5K 5K
• Oct 31 PB&J Fuel Run 5K/10K/13.1 AUSTIN/ROUNDROCK (5K) Del Valle · 5K 5K
• Oct 31 PB&J Fuel Run 5K/10K/13.1 LOS ANGELES (10K) Los Angeles · 10K 10K
• Oct 31 Motherlode Monster Dash 5k (3.1 Miles) Jackson · 5K 5K
• Oct 31 PB&J Fuel Run 5K/10K/13.1 LOS ANGELES (1 Miles) Los Angeles · 1 Mile 1 Mile
• Oct 31 PB&J Fuel Run 5K/10K/13.1 AUSTIN/ROUNDROCK (10K) Del Valle · 10K 10K