| 121 | 27 Nov 26 | 2026 Black Friday 5k/10k | 10K/5K | Herndon, VA |
| 122 | 25 Jul 26 | 2026 Black Squirrel Scurry Triathlon | triathlon | Merrill, WI |
| 123 | 21 Feb 26 | 2026 Blizzard Blast 5k/10k | 10K/5K | Williamsburg, VA |
| 124 | 26 Apr 26 | 2026 Bluemont Station Brewery & Winery 5k | 5K | Bluemont, VA |
| 125 | 25 Apr 26 | 2026 Booking It Through the Bluff Triathlon & 10K | triathlon | Hokes Bluff, AL |
| 126 | 23 Aug 26 | 2026 Boston Triathlon | triathlon | Boston, MA |
| 127 | 27 Jun 26 | 2026 Bottomless Triathlon | triathlon | Roswell, NM |
| 128 | 12 Jul 26 | 2026 Boulder Peak Triathlon | triathlon | Boulder, CO |
| 129 | 28 Jun 26 | 2026 Boulder Sunrise Triathlon | triathlon | Boulder, CO |
| 130 | 21 Jun 26 | 2026 Bozeman Triathlon | triathlon | Bozeman, MT |
| 131 | 12 Sep 26 | 2026 Brett-Robinson Alabama Coastal Triathlon ~ Results | triathlon | Gulf Shores, AL |
| 132 | 06 May 26 | 2026 Brick Endurance Summer Triathlon Series #1 | triathlon | Durham, NC |
| 133 | 04 Oct 26 | 2026 Bucktown 5K and Kids' Run | 5K | Chicago, IL |
| 134 | 07 Jun 26 | 2026 Buffalo Graniteman Triathlon | triathlon | Buffalo, MN |
| 135 | 01 Jan 26 | 2026 Bunnyman Resolution Run 5k/10k | 10K/5K | Lorton, VA |