| 12931 | 20 Jun 26 | Tremont Triathlon | Sprint/supersprint triathlon/supersprint triathlon relay | Tremont, IL |
| 12932 | 23 May 26 | Trent Waldron Half Marathon | 10K/13.1M | Anchorage, AK |
| 12933 | 27 Jun 26 | Trenton Summerfest Half Marathon, 8K, & 5K | 5K/8K/13.1M | Trenton, MI |
| 12934 | 20 Jun 26 | Trestle Hustle | 5K/10K | Madrid, IA |
| 12935 | 22 Mar 26 | Tri @ The Y | indoor triathlon | Hornell, NY |
| 12936 | 13 Jun 26 | Tri 4 Schools Sun Prairie Kids Triathlon | youth duathlon/youth triathlon | Sun Prairie, WI |
| 12937 | 16 May 26 | Tri 4 Schools Waunakee Kids Triathlon | youth triathlon | Waunakee, WI |
| 12938 | 14 Mar 26 | Tri 4 the Cure AZ • 2026 | 5K | Anthem, AZ |
| 12939 | 12 Apr 26 | Tri Aggieland | Sprint Triathlon | Bryan, TX |
| 12940 | 18 Jul 26 | Tri Boulder | Half/Olympic/Sprint Triathlon | Boulder, CO |
| 12941 | 08 Aug 26 | TRI Columbus | Sprint Duathlon/Sprint Triathlon | Columbus, IN |
| 12942 | 19 Jul 26 | Tri Del Sol | Olympic/Sprint Duathlon/Sprint Triathlon/Sprint Triathlon Relay | Middleville, MI |
| 12943 | 22 Feb 26 | Tri Faster Indoor Triathlon | indoor triathlon | Greenfield, WI |
| 12944 | 17 Jun 26 | Tri Faster SwimRun - Race #1 | 5K | Brookfield, WI |
| 12945 | 22 Jul 26 | Tri Faster SwimRun - Race #2 | 5K | Brookfield, WI |