| 12091 | 10 May 26 | 2026 Brunch Run Sacramento | 1K/5K | Lodi, CA |
| 12092 | 06 May 26 | 2026 Brick Endurance Summer Triathlon Series #1 | triathlon | Durham, NC |
| 12093 | 12 Sep 26 | 2026 Brett-Robinson Alabama Coastal Triathlon ~ Results | triathlon | Gulf Shores, AL |
| 12094 | 21 Jun 26 | 2026 Bozeman Triathlon | triathlon | Bozeman, MT |
| 12095 | 28 Jun 26 | 2026 Boulder Sunrise Triathlon | triathlon | Boulder, CO |
| 12096 | 12 Jul 26 | 2026 Boulder Peak Triathlon | triathlon | Boulder, CO |
| 12097 | 27 Jun 26 | 2026 Bottomless Triathlon | triathlon | Roswell, NM |
| 12098 | 23 Aug 26 | 2026 Boston Triathlon | triathlon | Boston, MA |
| 12099 | 25 Apr 26 | 2026 Booking It Through the Bluff Triathlon & 10K | triathlon | Hokes Bluff, AL |
| 12100 | 26 Apr 26 | 2026 Bluemont Station Brewery & Winery 5k | 5K | Bluemont, VA |
| 12101 | 21 Feb 26 | 2026 Blizzard Blast 5k/10k | 10K/5K | Williamsburg, VA |
| 12102 | 25 Jul 26 | 2026 Black Squirrel Scurry Triathlon | triathlon | Merrill, WI |
| 12103 | 27 Nov 26 | 2026 Black Friday 5k/10k | 10K/5K | Herndon, VA |
| 12104 | 20 Jun 26 | 2026 Black Butte Triathlon | triathlon | Corning, CA |
| 12105 | 12 Apr 26 | 2026 Bill Bone OLYMPIC Triathlon | triathlon | West Palm Beach, FL |