| 886 | 13 Sep 25 | OBX Triathlon | Olympic/Sprint Triathlon | Manteo, NC |
| 887 | 13 Sep 25 | Belews Lake Olympic Triathlon | Olympic Duathlon/Olympic Triathlon | Stokesdale, NC |
| 888 | 13 Sep 25 | Fontana Triathlon on Geneva Lake | Olympic/Sprint Triathlon/Sprint Triathlon Relay | Fontana-on-Geneva Lake, WI |
| 889 | 13 Sep 25 | Winchester Lakeside Triathlons | Olympic/Sprint Duathlon/Sprint Triathlon/Sprint Triathlon Relay | Winchester, TN |
| 890 | 13 Sep 25 | PUSH Sprint Triathlon | Sprint Triathlon | Saint Paul, MN |
| 891 | 13 Sep 25 | Soggy Seals Triathlon | Sprint Triathlon | Huntsville, AL |
| 892 | 13 Sep 25 | Taming of the Slough | other dry triathlon/other triathlon relay | Moline, IL |
| 893 | 14 Sep 25 | Zoom RedHawks Triathlon & Multisport Festival | triathlon | College Corner, OH |
| 894 | 14 Sep 25 | 2025 Ballwin Kids Triathlon . . | triathlon | Ballwin, MO |
| 895 | 14 Sep 25 | Alpha Win Triathlon - Saugerties | Olympic/Sprint Triathlon/halfiron/youth aquathon | Saugerties, NY |
| 896 | 14 Sep 25 | The 2025 Shaver Lake Triathlon | triathlon | Shaver Lake, CA |
| 897 | 14 Sep 25 | The 2025 Marsh Creek Triathlon | triathlon | Downingtown, PA |
| 898 | 14 Sep 25 | 2025 Devil's Challenge Triathlon | triathlon | Baraboo, WI |
| 899 | 14 Sep 25 | 2025 Cool Sommer Mornings Sprint Triathlon, Duathlon & 5K #4 | triathlon | Clermont, FL |
| 900 | 14 Sep 25 | 2025 Josh Billings Triathlon | triathlon | Lenox, MA |