| 1126 | 11 Oct 25 | Du-Ruyter Duathlon (Run/Kayak/Run) | triathlon | De Ruyter, NY |
| 1127 | 11 Oct 25 | Red Sneakers Peoria 5K & Teal Pumpkin Festival | ['5K'/ '1M'/ 'Marathon'/ 'Triathlon'] | Peoria Heights, IL |
| 1128 | 11 Oct 25 | Cal Tri Charlotte | 5K/10K | Statesville, NC |
| 1129 | 11 Oct 25 | She Tris | Sprint Aquathon/Sprint Duathlon/Sprint Triathlon/Sprint Triathlon Relay/youth triathlon | Winterville, NC |
| 1130 | 11 Oct 25 | West Penn Trail Triathlon | sprint dry triathlon | Saltsburg, PA |
| 1131 | 11 Oct 25 | Atomic Man Half Iron, Olympic, Sprint Triathlon & Sprint Duathlon | Olympic/Sprint Duathlon/Sprint Triathlon/Sprint Triathlon Relay/halfiron | Lenoir, TN |
| 1132 | 11 Oct 25 | Monster Kids Triathlon | youth triathlon | Keller, TX |
| 1133 | 11 Oct 25 | Huntsman World Senior Games Triathlon | Sprint Triathlon | Saint George, UT |
| 1134 | 12 Oct 25 | The 2025 Lake Evans Triathlon | triathlon | Bakersfield, CA |
| 1135 | 12 Oct 25 | 2025 Bolivar Live Triathlon | triathlon | Port Bolivar, TX |
| 1136 | 12 Oct 25 | 2025 Monster Triathlon Keller | triathlon | Keller, TX |
| 1137 | 12 Oct 25 | 2025 Wurst Tri Ever | triathlon | New Braunfels, TX |
| 1138 | 12 Oct 25 | 2025 Mission Bay Triathlon | triathlon | San Diego, CA |
| 1139 | 12 Oct 25 | 2025 Game On! St. Augustine Triathlon - Fall | triathlon | Vilano Beach, FL |
| 1140 | 12 Oct 25 | Lake Evans Triathlon | 5K/10K | Bakersfield, CA |