| 10501 | 07 Mar 26 | 2026 March Triathlon Series | triathlon | Arroyo Grande, CA |
| 10502 | 26 Jul 26 | 2026 Marble Falls Triathlon | triathlon | Marble Falls, TX |
| 10503 | 02 May 26 | 2026 Maine Coast Marathon, Half Marathon and 5K | 5K | Wells, ME |
| 10504 | 02 Aug 26 | 2026 Lums Pond Triathlon | triathlon | Bear, DE |
| 10505 | 15 Mar 26 | 2026 Luck of the Irish Triathlon & Duathlon | triathlon | The Colony, TX |
| 10506 | 20 Jun 26 | 2026 Loveland Lake to Lake Triathlon | triathlon | Loveland, CO |
| 10507 | 04 Apr 26 | 2026 Louisville 10 Mile | 10 Mile | Louisville, KY |
| 10508 | 11 Jul 26 | 2026 Logan Health Kids Triathlon | triathlon | Kalispell, MT |
| 10509 | 05 Apr 26 | 2026 Lobo Triathlon | triathlon | Albuquerque, NM |
| 10510 | 12 Sep 26 | 2026 Littlefoot Sprint Triathlon | triathlon | Lakewood, CO |
| 10511 | 11 Jul 26 | 2026 Litchfield Hills Triathlon | triathlon | New Hartford, CT |
| 10512 | 11 Apr 26 | 2026 Lifeline Duathlon | triathlon | Lafayette, LA |
| 10513 | 30 May 26 | 2026 Lewisburg Triathlon | triathlon | Lewisburg, PA |
| 10514 | 07 Jun 26 | 2026 Leon's Triathlon | triathlon | Hammond, IN |
| 10515 | 27 Sep 26 | 2026 Last Call Triathlon | triathlon | Loveland, CO |