| 13891 | 21 Feb 26 | 2026 Blizzard Blast 5k/10k | 10K/5K | Williamsburg, VA |
| 13892 | 25 Jul 26 | 2026 Black Squirrel Scurry Triathlon | triathlon | Merrill, WI |
| 13893 | 27 Nov 26 | 2026 Black Friday 5k/10k | 10K/5K | Herndon, VA |
| 13894 | 20 Jun 26 | 2026 Black Butte Triathlon | triathlon | Corning, CA |
| 13895 | 12 Apr 26 | 2026 Bill Bone OLYMPIC Triathlon | triathlon | West Palm Beach, FL |
| 13896 | 07 Jun 26 | 2026 Best in the West Triathlon Festival - Sunday Events | triathlon | Foster, OR |
| 13897 | 06 Jun 26 | 2026 Best in the West Triathlon Festival - Saturday Events | triathlon | Foster, OR |
| 13898 | 18 Apr 26 | 2026 BENGAL TRIATHLON (+Du & 5K) | 5K | Pocatello, ID |
| 13899 | 21 Feb 26 | 2026 Belle Haven 5k/10k | 10K/5K | Alexandria, VA |
| 13900 | 18 Apr 26 | 2026 Belews Lake Sprint Triathlon | triathlon | Stokesdale, NC |
| 13901 | 25 Apr 26 | 2026 Beaverdam Olympic & Sprint Triathlon | triathlon | Wake Forest, NC |
| 13902 | 28 Mar 26 | 2026 Bearathon/Sic 'Em 6k Event | Half Marathon | Waco, TX |
| 13903 | 16 May 26 | 2026 Bear Youth Triathlon | triathlon | Bear, DE |
| 13904 | 17 May 26 | 2026 Bear Triathlon | triathlon | Bear, DE |
| 13905 | 20 Jun 26 | 2026 Beach Bum Triathlon | triathlon | Hilton Head Island, SC |