| 1531 | 31 Oct 26 | Trick or Trot 5K | 5K | Braselton, GA |
| 1532 | 24 Oct 26 | Trick or Trot 5K | 5K | Birmingham, AL |
| 1533 | 31 Oct 26 | Trick or Trot 3K | 3K | Manchester, NH |
| 1534 | 31 Oct 26 | Trick or Tri at Merrill Ranch | Sprint Duathlon/Sprint Triathlon/Sprint Triathlon Relay/youth triathlon | Florence, AZ |
| 1535 | 31 Oct 26 | Trick or Treat 5K | 5K | Seattle, WA |
| 1536 | 24 Oct 26 | Trick or Trail 5k & 1 Mile | 1M/5K | Hendersonville, NC |
| 1537 | 24 Jun 26 | Triceratops Tri | Sprint Duathlon/Sprint Triathlon | Brighton, MI |
| 1538 | 27 Sep 26 | TriByLittleKnight Triathlon | youth triathlon | Waverly, IA |
| 1539 | 05 Sep 26 | Triboro Adventure Tour | adventure race | Astoria, NY |
| 1540 | 20 Jun 26 | Tribe Tri Kids Triathlon | youth triathlon | Mount Sterling, KY |
| 1541 | 01 Aug 26 | TriathaMom | Sprint Duathlon/Sprint Triathlon/Sprint Triathlon Relay | Riverton, UT |
| 1542 | 30 May 26 | Triangle Sprint & Mini-Sprint | Sprint/Sprint Triathlon Relay/supersprint triathlon | New Hill, NC |
| 1543 | 10 Oct 26 | Triangle Run/Walk for Autism | 1M/5K | Raleigh, NC |
| 1544 | 27 Jun 26 | Trials of Odysseus | 5K | Burnsville, MN |
| 1545 | 06 Mar 27 | Tri45 - Gaylord All Outdoors Winter Triathlon | Sprint Triathlon | Frederic, MI |