| 541 | 28 Dec 25 | 2025 Terrapin Trot 5k/10k | 10K/5K | Stevensville, MD |
| 542 | 20 Sep 25 | 2025 Texas City Triathlon, Duathlon, & Aquabike | triathlon | Texas, TX |
| 543 | 07 Sep 25 | 2025 Texas State Sprint Triathlon | triathlon | San Marcos, TX |
| 544 | 27 Nov 25 | 2025 Thanksgiving Day Races | 1K/5K/10K | Bountiful, UT |
| 545 | 22 Nov 25 | 2025 Thanksgiving Stuffing Stomp 5k/10k | 10K/5K | Washington, DC |
| 546 | 27 Nov 25 | 2025 The Capital Turkey Trot 5k/10k | 10K/5K | Washington, DC |
| 547 | 27 Sep 25 | 2025 The House That Beer Built 5k/1M | 1M/5K | Leesburg, VA |
| 548 | 06 Sep 25 | 2025 The Inferno 5k/10k | 10K/5K | Bluemont, VA |
| 549 | 06 Sep 25 | 2025 The Outsider/PilgrimMan Triathlon | triathlon | Carver, MA |
| 550 | 13 Dec 25 | 2025 Tinsel Trot 5k/10k | 10K/5K | Louisa, VA |
| 551 | 20 Sep 25 | 2025 Tobin Bolter / Ada County Kids Duathlon | triathlon | Garden, ID |
| 552 | 13 Sep 25 | 2025 Toughman Triathlon - Olympic Events . . | triathlon | Stoney Point, NY |
| 553 | 20 Sep 25 | 2025 TOUGHMAN Westchester Triathlon - (SATURDAY) | triathlon | Rye, NY |
| 554 | 21 Sep 25 | 2025 TOUGHMAN Westchester Triathlon - (SUNDAY) | triathlon | Rye, NY |
| 555 | 12 Oct 25 | 2025 Tour des Atakapas Running + MultiSport Event | triathlon | Lafayette, LA |