| 15136 | 06 Sep 25 | 2025 World Cancer Day 1M 5K 10K 13.1 26.2 | 10K/13.1/1M/26.2/5K/Triathlon/Ultra | Bowling Green, OH |
| 15137 | 06 Sep 25 | 2025 Wonders Sprint Triathlon - SATURDAY | triathlon | Hewitt, NJ |
| 15138 | 06 Sep 25 | 2025 Wolfman Triathlon & Trail Runs | triathlon | White Lake, WI |
| 15139 | 08 Sep 25 | 2025 Wisconsin ANVIL Ultra Triathlon | triathlon | Dousman, WI |
| 15140 | 21 Dec 25 | 2025 Winter Wonderland 5k/10k | 10K/5K | Arlington, VA |
| 15141 | 26 Nov 25 | 2025 Winery at Bull Run Turkey Trot 5k/10k | 10K/5K | Centreville, VA |
| 15142 | 14 Sep 25 | 2025 Wine Run at Westport Rivers Vineyard and Winery - 5k | 5K | Westport, MA |
| 15143 | 13 Sep 25 | 2025 Winchester Lakeside Triathlon | triathlon | Winchester, TN |
| 15144 | 20 Sep 25 | 2025 Wildman Triathlon Experience | triathlon | Lawrenceburg, KY |
| 15145 | 07 Sep 25 | 2025 Wildlife Loop Triathlon | triathlon | Custer, SD |
| 15146 | 18 Oct 25 | 2025 Wilderness Run 5k/10k | 10K/5K | Spotsylvania, VA |
| 15147 | 15 Nov 25 | 2025 Wicked Wine Run Temecula, CA | 1K/5K | Temecula, CA |
| 15148 | 01 Nov 25 | 2025 Wicked Wine Run Santa Barbara, CA | 1K/5K | Buellton, CA |
| 15149 | 08 Nov 25 | 2025 Wicked Wine Run Paso Robles, CA | 1K/5K | Paso Robles, CA |
| 15150 | 11 Oct 25 | 2025 Wicked Wine Run Napa! | 1K/5K | American Canyon, CA |