| 376 | 12 Sep 26 | 2026 Littlefoot Sprint Triathlon | triathlon | Lakewood, CO |
| 377 | 05 Apr 26 | 2026 Lobo Triathlon | triathlon | Albuquerque, NM |
| 378 | 11 Jul 26 | 2026 Logan Health Kids Triathlon | triathlon | Kalispell, MT |
| 379 | 19 Jul 26 | 2026 Long Beach Legacy Triathlon | triathlon | Long Beach, CA |
| 380 | 28 Feb 26 | 2026 Los Alamitos Race on the Base Triathlon & 5K | triathlon | Los Alamitos, CA |
| 381 | 04 Apr 26 | 2026 Louisville 10 Mile | 10 Mile | Louisville, KY |
| 382 | 20 Jun 26 | 2026 Loveland Lake to Lake Triathlon | triathlon | Loveland, CO |
| 383 | 14 Feb 26 | 2026 Lovers 5k/10k/Half | 10K/13.1/5K | Fairfax Station, VA |
| 384 | 15 Mar 26 | 2026 Luck of the Irish Triathlon & Duathlon | triathlon | The Colony, TX |
| 385 | 02 Aug 26 | 2026 Lums Pond Triathlon | triathlon | Bear, DE |
| 386 | 02 May 26 | 2026 Maine Coast Marathon, Half Marathon & 5K | triathlon | Wells, ME |
| 387 | 02 May 26 | 2026 Maine Coast Marathon, Half Marathon and 5K | 5K | Wells, ME |
| 388 | 08 Feb 26 | 2026 Manassas Battlefield Trust 5k/10k | 10K/5K | Centreville, VA |
| 389 | 26 Jul 26 | 2026 Marble Falls Triathlon | triathlon | Marble Falls, TX |
| 390 | 21 Mar 26 | 2026 March in Okarche Duathlon | triathlon | Okarche, OK |