| 661 | 06 Jun 26 | Turtle Trot | 1M/5K/10K | Ashland, OR |
| 662 | 27 Jun 26 | Turtle Lake Resort Clothing Optional 5K | 2M/5K | Union, MI |
| 663 | 11 Apr 26 | Turtle Derby 5K Trail Race | 5K | Havre de Grace, MD |
| 664 | 25 Apr 26 | Turtle Crawl Races | 1K/5K/10K | Jekyll Island, GA |
| 665 | 26 Nov 26 | Turkey Trot 5k, 10k, 15k, Half Marathon | 5K/10K/15K | Van Nuys, CA |
| 666 | 16 May 26 | Turkey Creek Festival 5K | 5K | Merriam, KS |
| 667 | 23 May 26 | Turkey Creek 5K Trail Run | 5K | Palm Bay, FL |
| 668 | 27 Jun 26 | Tupper Lake Tinman Triathlon | Half/Olympic/Sprint Triathlon/relay | Tupper Lake, NY |
| 669 | 25 Apr 26 | Tupelo Sprint Triathlon | Sprint Triathlon/Sprint Triathlon Relay | Tupelo, MS |
| 670 | 26 Apr 26 | Tunnel to Towers Climb - Towson, MD | stair climb | Towson, MD |
| 671 | 17 May 26 | Tunnel to Towers Climb - Charlotte, NC | stair climb | Charlotte, NC |
| 672 | 04 Apr 26 | Tunnel to Towers 5K Run and Walk - Palatka, FL | 5K | Palatka, FL |
| 673 | 26 Jul 26 | Tunnel to Towers 5K Run and Walk - Fire Island, NY | 5K | Ocean Beach, NY |
| 674 | 17 May 26 | Tunnel to Towers 5K - Westerville | 5K | Westerville, OH |
| 675 | 09 May 26 | Tunnel to Towers 5K - Ripley | 5K | Ripley, WV |