| 256 | | 07 Sep 24 | 2024 Dashing to Summer's End 5k & 10k | 10K/5K | Washington, DC |
| 257 | | 17 Aug 24 | 2024 Daybreak Triathlon | triathlon | South Jordan, UT |
| 258 | | 17 Aug 24 | 2024 Death Run Society Canton Lake Triathlon | triathlon | Canton, OK |
| 259 | | 01 Jun 24 | 2024 Deer Creek KIDS Triathlon & Duathlon - SATURDAY . . | triathlon | New Holland, OH |
| 260 | | 02 Jun 24 | 2024 Deer Creek Triathlon & Duathlon ?? . . | triathlon | Mount Sterling, OH |
| 261 | | 08 Sep 24 | 2024 DeGray Lake Trifest | triathlon | Arkadelphia, AR |
| 262 | | 13 Jul 24 | 2024 Delta Lake Triathlon . . | triathlon | Rome, NY |
| 263 | | 06 Jul 24 | 2024 Deltaville 5k & Kids Fun Run | 1M/5K/1k | Deltaville, VA |
| 264 | | 10 Aug 24 | 2024 Desert Rose Triathlon | triathlon | Kanab, UT |
| 265 | | 02 Jun 24 | 2024 Deuces Wild Endurance Festival - SUNDAY | triathlon | Show Low, AZ |
| 266 | | 25 Jun 24 | 2024 Development Camp - Durango | triathlon | Durango, CO |
| 267 | | 20 Jul 24 | 2024 DeWitt Crossroads Triathlon | triathlon | DeWitt, IA |
| 268 | | 13 Jul 24 | 2024 Diamond in the Rough Triathlon . . | triathlon | Perryville, MD |
| 269 | | 20 Jul 24 | 2024 Diamond Lake Triathlon | triathlon | Cassopolis, MI |
| 270 | | 03 Aug 24 | 2024 DINO Gravel Triathlon . . | triathlon | Terre Haute, IN |
