| 10876 | 20 Sep 26 | Trapp Cabin Trail Race | 5K/10K/13.1M | Stowe, VT |
| 10877 | 12 Sep 26 | Trash Panda | 5K/10K/13.1M/26.2K/26.2M/50K | Chattanooga, TN |
| 10878 | 31 Oct 26 | Traverse City Zombie Run 5K | 5K | Traverse, MI |
| 10879 | 07 Nov 26 | Traverse Mountain Half Marathon | 13.1M | Highland, UT |
| 10880 | 07 Nov 26 | Treasure Coast Adventure Race and 5K | 5K/25K | Hobe Sound, FL |
| 10881 | 25 Oct 26 | Treasure Coast Halloween Half | 13.1M | Stuart, FL |
| 10882 | 06 Dec 26 | Treasure Coast Tri | Olympic/Sprint Duathlon/Sprint Triathlon/aquathon/relay | Fort Pierce, FL |
| 10883 | 12 Dec 26 | Treasure Coast Twilight 3K | 3K | Vero Beach, FL |
| 10884 | 27 Sep 26 | Treasure Island Sprint Triathlon/Duathlon | Sprint Duathlon/Sprint Triathlon/Sprint Triathlon Relay | Point Pleasant, NJ |
| 10885 | 31 Oct 26 | Trek or Treat 5K | 5K | Douglasville, GA |
| 10886 | 12 Sep 26 | Trek The Creek Scott Bohman Memorial 5K | 5K | Francis Creek, WI |
| 10887 | 17 Oct 26 | Trenches and Tacos 5K | 5K | Phoenix, AZ |
| 10888 | 13 Mar 27 | Tri 4 the Cure | 5K | Anthem, AZ |
| 10889 | 12 Sep 26 | Tri Community Tri | Sprint/Sprint Triathlon Relay/supersprint triathlon/youth triathlon | Pima, AZ |
| 10890 | 26 Nov 26 | Tri County Turkey Trot | 5K | Howard, MI |