| 13876 | 04 Jul 26 | 2026 Bunnyman Fireworks 5k/10k | 10K/5K | Lorton, VA |
| 13877 | 07 Jun 26 | 2026 Buffalo Graniteman Triathlon | triathlon | Buffalo, MN |
| 13878 | 04 Oct 26 | 2026 Bucktown 5K and Kids' Run | 5K | Chicago, IL |
| 13879 | 10 May 26 | 2026 Brunch Run Sacramento | 1K/5K | Lodi, CA |
| 13880 | 06 May 26 | 2026 Brick Endurance Summer Triathlon Series #1 | triathlon | Durham, NC |
| 13881 | 12 Sep 26 | 2026 Brett-Robinson Alabama Coastal Triathlon ~ Results | triathlon | Gulf Shores, AL |
| 13882 | 21 Jun 26 | 2026 Bozeman Triathlon | triathlon | Bozeman, MT |
| 13883 | 28 Jun 26 | 2026 Boulder Sunrise Triathlon | triathlon | Boulder, CO |
| 13884 | 12 Jul 26 | 2026 Boulder Peak Triathlon | triathlon | Boulder, CO |
| 13885 | 27 Jun 26 | 2026 Bottomless Triathlon | triathlon | Roswell, NM |
| 13886 | 23 Aug 26 | 2026 Boston Triathlon | triathlon | Boston, MA |
| 13887 | 25 Apr 26 | 2026 Booking It Through the Bluff Triathlon & 10K | triathlon | Hokes Bluff, AL |
| 13888 | 26 Apr 26 | 2026 Bluemont Station Brewery & Winery 5k | 5K | Bluemont, VA |
| 13889 | 09 May 26 | 2026 Block Island Shad Bloom 10 K Trail Run | 10K | Block Island, RI |
| 13890 | 11 Oct 26 | 2026 Block Island Half Marathon | Half Marathon | Block Island, RI |