| 181 | 18 May 25 | Spring Sprint at Uvas | Sprint Duathlon/Sprint Triathlon/Sprint Triathlon Relay | Morgan Hill, CA |
| 182 | 18 May 25 | Whittier Narrows Spring Running Festival | 5K/10K/15K | South El Monte, CA |
| 183 | 18 May 25 | Venice Beach Half Marathon & 5K | 1M/5K/13.1M | Venice, CA |
| 184 | 18 May 25 | MPAEF Schoolhouse Rocks 5K | 5K | Menlo Park, CA |
| 185 | 18 May 25 | Long Beach Pride Run | 5K/10K | Long Beach, CA |
| 186 | 18 May 25 | Shinzen Run/Walk | 2M | Fresno, CA |
| 187 | 21 May 25 | Boogie Nights Summer Run Series | 5K | Ventura, CA |
| 188 | 21 May 25 | Nite Moves 2025 | 5K | Santa Barbara, CA |
| 189 | 21 May 25 | 2025 Nite Moves Summer Sunset Series - May 21 | triathlon | Santa Barbara, CA |
| 190 | 23 May 25 | NMCSD Mental Health Awareness 5K | 3M | San Diego, CA |
| 191 | 24 May 25 | Run to Remember 5k, 10k, 15k, Half Marathon | 5K/10K/15K | Long Beach, CA |
| 192 | 24 May 25 | Bubble Run | Oakland | May 24th, 2025 | 5K | Oakland, CA |
| 193 | 24 May 25 | Modesto Memorial Classic | 1M/5K | Modesto, CA |
| 194 | 24 May 25 | Placerville Path Memorial Day Run | 5K/10K/15K/13.1M | Placerville, CA |
| 195 | 24 May 25 | Run to Remember Half Marathon | 5K/10K/15K/13.1M | Long Beach, CA |