| 136 | 15 Nov 25 | 2025 Barrel Oak Turkey Trot 3k/6k | 3k/6k | Delaplane, VA |
| 137 | 23 Aug 25 | 2025 Barron Lake Triathlon | triathlon | Niles, MI |
| 138 | 27 Sep 25 | 2025 Battle at Buckhorn Sprint Triathlon | triathlon | Sims, NC |
| 139 | 12 Jul 25 | 2025 Bay St. Louis Triathlon . . | triathlon | Bay Saint Louis, MS |
| 140 | 20 Sep 25 | 2025 Be The Light 5K | 5K/10K | Valencia, CA |
| 141 | 23 Aug 25 | 2025 Beach Bum Classic Triathlon | triathlon | Virginia Beach, VA |
| 142 | 18 Oct 25 | 2025 Beach Girl Triathlon | triathlon | Galveston, TX |
| 143 | 13 Sep 25 | 2025 Bear Lake Brawl Triathlon | triathlon | St Charles, ID |
| 144 | 20 Sep 25 | 2025 Beaver County Tri Cup | triathlon | Beaver Falls, PA |
| 145 | 24 Aug 25 | 2025 Beaver Lake Triathlon | triathlon | Sammamish, WA |
| 146 | 13 Sep 25 | 2025 Beaverton Half Marathon, 5K/10K | 5K/10K | Beaverton, OR |
| 147 | 13 Sep 25 | 2025 Belews Lake Olympic Triathlon | triathlon | Stokesdale, NC |
| 148 | 22 Jun 25 | 2025 Bella Vista Youth Triathlon | triathlon | Bella Vista, AR |
| 149 | 27 Sep 25 | 2025 Beware of Barracuda Triathlon | triathlon | Hazleton, PA |
| 150 | 27 Sep 25 | 2025 Big Hurt Multisport Adventure | triathlon | Port Angeles, WA |