Runs Near 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.