| 946 | 14 Sep 25 | Springs Kids Triathlon | youth triathlon | Colorado Springs, CO |
| 947 | 14 Sep 25 | Lake Carey Loop | Sprint Triathlon | Tunkhannock, PA |
| 948 | 20 Sep 25 | 2025 Pacific Coast Triathlon | triathlon | Laguna Beach, CA |
| 949 | 20 Sep 25 | Ironman 70.3 New York | halfiron triathlon | Jones Beach State Park, NY |
| 950 | 20 Sep 25 | 2025 She Tris Sprint Triathlon - Carnes Crossroads | triathlon | Summerville, SC |
| 951 | 20 Sep 25 | 2025 Texas City Triathlon, Duathlon, & Aquabike | triathlon | Texas, TX |
| 952 | 20 Sep 25 | 2025 Giant Acorn Triathlon Festival (Saturday) | triathlon | Spotsylvania, VA |
| 953 | 20 Sep 25 | 2025 New River Trail Challenge Triathlon | triathlon | Max Meadows, VA |
| 954 | 20 Sep 25 | 2025 IRONMAN 70.3 New York | triathlon | Wantagh, NY |
| 955 | 20 Sep 25 | 2025 Wildman Triathlon Experience | triathlon | Lawrenceburg, KY |
| 956 | 20 Sep 25 | 2025 Tobin Bolter / Ada County Kids Duathlon | triathlon | Garden, ID |
| 957 | 20 Sep 25 | 2025 Rexburg Rush Triathlon | triathlon | Rexburg, ID |
| 958 | 20 Sep 25 | 2025 SwimRun Cape Cod | triathlon | Wellfleet, MA |
| 959 | 20 Sep 25 | 2025 DSI Triathlon | triathlon | Red Wing, MN |
| 960 | 20 Sep 25 | 2025 Beaver County Tri Cup | triathlon | Beaver Falls, PA |