| 5266 | 02 Jun 26 | Lynchburg Road Runners Summer Track Series | track meet | Lynchburg, VA |
| 5267 | 09 May 26 | Lynwood 5K/10K | 5K,10K | Lynwood, CA |
| 5268 | 25 Jul 26 | LYSB Midsummer 5k | 5K | Old Lyme, CT |
| 5269 | 25 Jul 26 | LYSB Midsummer 5K | 5K | Old Lyme, CT |
| 5270 | 04 Jul 26 | Lytle Park Tri | 5K | Mattoon, IL |
| 5271 | 23 May 26 | M&T Bank Vermont City Two Mile | 2M | Burlington, VT |
| 5272 | 13 Jun 26 | M22 Challenge | sprint dry triathlon | Empire, MI |
| 5273 | 24 Oct 26 | M2M - Marathon 2 Marathon 2026 | 5K/10K | Marathon, TX |
| 5274 | 25 Jul 26 | Maah Daah Hey Trail Run | 5K/10K/13.1M/26.2M/56M/81M/107M | Medora, ND |
| 5275 | 01 May 26 | MacArthur Park 5K | 5K | Little Rock, AR |
| 5276 | 06 Jun 26 | Macedonia SummerFest 5K | 1M/5K | Macedonia, OH |
| 5277 | 01 Aug 26 | Machine Solutions Run | 2K/5K/10K | Flagstaff, AZ |
| 5278 | 08 Nov 26 | Mack Cycle Miami Man Triathlon | ['27.6M'/ '28M'/ '21.6M'/ '16.4M'/ '17.1M'/ '13.3M'/ 'Triathlon'/ 'Ultra'] | Miami, FL |
| 5279 | 09 Aug 26 | Mack Cycle Tri-Miami Triathlon Trilogy #3 | ['51.5K'/ '41.5K'/ '34.7K'/ '17.8K'/ '18.8K'/ '14.5K'/ 'Triathlon'/ 'Ultra'] | Key Biscayne, FL |
| 5280 | 14 Jun 26 | Mackinaw Valley Wine Run 5K | 5K | Mackinaw, IL |