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Ultra Marathons Near San Diego
Showing the next 10 runs that match your filters
Featured
Crown City Classic
Get 10% Off - Use Code RUNGUIDES10
Date: Jul 4, 2026 - Saturday
Size: 1,000 - 5,000 participants
Location: Coronado, California
Featured
Aloha Run San Diego
Get $5 Off - Use Code RGSDFE
Date: Sep 13, 2026 - Sunday
Size: 1,000 - 5,000 participants
Location: San Diego, California
Mission Trails Twilight Runs
Date: May 23, 2026 - Saturday
Size: 100 - 500 participants
Location: San Diego, California
South Bay 24 & South Bay Mini
Date: Jul 24, 2026 - Friday
Size: 100 - 500 participants
Location: San Diego, California
The 72 Mile Tahoe Midnight Express
Date: Oct 17-18, 2026 - Saturday to Sunday
Size: 100 - 500 participants
Location: Lakeside, California
Running in San Diego
Find runs and races near you with our San Diego running calendar. 5k, 10k, half marathons, marathons, ultras, road and trail. We update this list of runs weekly (sometimes even more frequently). 🏃 When do most runs happen in San Diego? running season is pretty much year round thanks to the climate, however, most San Diego runs tend to happen March through May, then again September through November.
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Lake Hodges Trail Fest
Get $5 Off - Use Code FEST26
Date: Oct 17-18, 2026 - Saturday to Sunday
Size: 100 - 500 participants
Location: San Diego, California
Ragnar Trail So Cal
Date: Oct 23-24, 2026 - Friday to Saturday
Size: 1,000 - 5,000 participants
Location: Ranchita, California
Boundiful Endurance Runs
Date: Nov 28, 2026 - Saturday
Size: 100 - 500 participants
Location: Hemet, California
The San Diego 50 & Trail Runs
Get $5 Off - Use Code TRAIL27
Date: Jan 9, 2027 - Saturday
Size: 500 - 1,000 participants
Location: Escondido, California
Sycamore Canyon Half/50k/100k + Relay
Date: Feb 27, 2027 - Saturday
Size: 100 - 500 participants
Location: San Diego, California
Ragnar Road So Cal
Date: Apr 9-10, 2027 - Friday to Saturday
Size: 1,000 - 5,000 participants
Location: Coronado, California
Corral Canyon Trail Scramble
Date: May, 2027 (TBD)
Size: 1 - 100 participants
Location: Campo, California