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Running calendar near Ontario 2024-2025

Explore the top running races near Ontario for 2024-2025! We've gathered 41 exciting races in the area. Check out our detailed list below to find your next local race.

March 2025
Mar
8
Saturday

Pasadena Triathlon

Triathlon
Mar
8
Saturday

Bell Gardens 5K

5 km
Mar
8
Saturday

Walk/Run With Hope 5K

5 km
Mar
15
Saturday

Nine Trails 35 Mile Endurance Run

Trail Run 17 mi 35 mi
Mar
15
Saturday

Gabrielino 50k

Trail Run 50 km
Mar
15
Saturday

Fragile X 5K

5 km
April 2025
Apr
5-6
Sa - Su

Tough Mudder - Los Angeles

Obstacle Run 8 km 15 km 10 mi
Apr
5
Saturday

Los Angeles Spartan Hurricane Heat

Obstacle Run 4 hr
Apr
5
Saturday

Billy Goat Half Marathon Climb

Trail Run 10 km 13 mi
Apr
19
Saturday

SoCal Deka Fit

Obstacle Run 5 km
Apr
19
Saturday

The Rabbit Run 5k

5 km
Apr
26
Saturday

OneLegacy Donate Life Run/Walk

5 km
May 2025
May
3
Saturday

Nurses Rock

5 km 10 km
May
17
Saturday

O'Neill Park Trail Races

Trail Run 10 km 13 mi ... 26 mi 50 km
May
17
Saturday

KID-FIT Family Fun Run 5K

5 km
May
24-25
Sa - Su

Nanny Goat

Trail Run 6 hr 12 hr 100 mi 24 hr
August 2025
Aug
2
Saturday

Angeles Crest 100 Mile Endurance Run

Trail Run 100 mi
Aug
24
Sunday

Splash Dash 5k

5 km
September 2025
Sep
5-7
Fr - Su

Disneyland Halloween Half Marathon Weekend

5 km 10 km
Sep
20
Saturday

Angel Stadium Spartan Stadion Weekend

Obstacle Run 5 km