| 12766 | 07 Jun 26 | 2026 Buffalo Graniteman Triathlon | triathlon | Buffalo, MN |
| 12767 | 04 Oct 26 | 2026 Bucktown 5K and Kids' Run | 5K | Chicago, IL |
| 12768 | 10 May 26 | 2026 Brunch Run Sacramento | 1K/5K | Lodi, CA |
| 12769 | 06 May 26 | 2026 Brick Endurance Summer Triathlon Series #1 | triathlon | Durham, NC |
| 12770 | 12 Sep 26 | 2026 Brett-Robinson Alabama Coastal Triathlon ~ Results | triathlon | Gulf Shores, AL |
| 12771 | 21 Jun 26 | 2026 Bozeman Triathlon | triathlon | Bozeman, MT |
| 12772 | 28 Jun 26 | 2026 Boulder Sunrise Triathlon | triathlon | Boulder, CO |
| 12773 | 12 Jul 26 | 2026 Boulder Peak Triathlon | triathlon | Boulder, CO |
| 12774 | 27 Jun 26 | 2026 Bottomless Triathlon | triathlon | Roswell, NM |
| 12775 | 23 Aug 26 | 2026 Boston Triathlon | triathlon | Boston, MA |
| 12776 | 25 Apr 26 | 2026 Booking It Through the Bluff Triathlon & 10K | triathlon | Hokes Bluff, AL |
| 12777 | 26 Apr 26 | 2026 Bluemont Station Brewery & Winery 5k | 5K | Bluemont, VA |
| 12778 | 21 Feb 26 | 2026 Blizzard Blast 5k/10k | 10K/5K | Williamsburg, VA |
| 12779 | 25 Jul 26 | 2026 Black Squirrel Scurry Triathlon | triathlon | Merrill, WI |
| 12780 | 27 Nov 26 | 2026 Black Friday 5k/10k | 10K/5K | Herndon, VA |