| 931 | 02 Aug 25 | 2025 Trizou for MS Triathlon - Saturday Events | triathlon | Columbia, MO |
| 932 | 20 Jul 25 | 2025 Troy Kids Triathlon | triathlon | Troy, OH |
| 933 | 17 Aug 25 | 2025 Try Cambridge Triathlon | triathlon | Cambridge, WI |
| 934 | 12 Aug 25 | 2025 Tuesday Night 5k #6 | 5K | Fairfax Station, VA |
| 935 | 09 Sep 25 | 2025 Tuesday Night 5k #7 | 5K | Springfield, VA |
| 936 | 14 Oct 25 | 2025 Tuesday Night 5k #8 | 5K | Springfield, VA |
| 937 | 23 Nov 25 | 2025 Turkey Dri Tri ? | triathlon | Oak Brook, IL |
| 938 | 16 Nov 25 | 2025 Turkey Tumble for Autism 5k/10k/Half | 10K/13.1/5K | Washington, DC |
| 939 | 19 Jul 25 | 2025 Turtleman Triathlon | triathlon | Shoreview, MN |
| 940 | 09 Aug 25 | 2025 Twin Lakes Triathlon | triathlon | Manson, IA |
| 941 | 29 Nov 25 | 2025 Ugly Sweater Dash 5k/10k/Half | 10K/13.1/5K | Fairfax Station, VA |
| 942 | 28 Nov 25 | 2025 Ultraman World Championships . . | triathlon | Kealakekua, HI |
| 943 | 27 Sep 25 | 2025 UMD FCA 5k | 5K | Greenbelt, MD |
| 944 | 26 Oct 25 | 2025 United Supermarkets Lubbock Marathon | 5K/10K | Lubbock, TX |
| 945 | 08 Aug 25 | 2025 USA Triathlon Sprint and Olympic Distance National Championships . . | triathlon | Milwaukee, WI |