| 11701 | 17 May 26 | 2026 Dunedin Rotary Triathlon | triathlon | Dunedin, FL |
| 11702 | 02 May 26 | 2026 Dunedin Hog Hustle 5K Event | 5K | Dunedin, FL |
| 11703 | 28 Jun 26 | 2026 Duck Creek Triathlon | triathlon | Howard, WI |
| 11704 | 25 Jan 26 | 2026 Du It By The Bay Duathlon | triathlon | Laguna Vista, TX |
| 11705 | 13 Sep 26 | 2026 Dover Sherborn Boosters Triathlon | triathlon | Dover-Sherborn, MA |
| 11706 | 11 Jul 26 | 2026 Door County Sprint Triathlon - Saturday | triathlon | Egg Harbor, WI |
| 11707 | 12 Jul 26 | 2026 Door County Olympic Triathlon - Sunday | triathlon | Egg Harbor, WI |
| 11708 | 13 May 26 | 2026 Dooby Du Duathlon - WEDNESDAY | triathlon | Sylvania, OH |
| 11709 | 25 Jan 26 | 2026 Donut Give Up 5k/10k | 10K/5K | Fredericksburg, VA |
| 11710 | 29 Mar 26 | 2026 Doggy Dash 5k/10k | 10K/5K | Leesburg, VA |
| 11711 | 05 Sep 26 | 2026 Dog Days of Summer 5k/10k | 10K/5K | Warrenton, VA |
| 11712 | 01 Mar 26 | 2026 District Dash 5k/Half | 13.1/5K | Washington, DC |
| 11713 | 16 May 26 | 2026 Dirty Pelican Bike Paddle Run | triathlon | Klamath Falls, OR |
| 11714 | 31 Jan 26 | 2026 Dirt Farm Brewing 5k/10k | 10K/5K | Bluemont, VA |
| 11715 | 30 May 26 | 2026 Diamond Kid Triathlon | triathlon | Blue Diamond, NV |