| 17521 | 17 Oct 26 | Black River Trail Classic | 10K/25K/50K/85K | Millston, WI |
| 17522 | 03 Oct 26 | Black Nurses of Southern Maryland Health Fair and Walk/Run | 1.5M/5K | Fort Washington, MD |
| 17523 | 26 Nov 26 | Black Mountain Turkey Trot 5K | 1M/5K | Black Mountain, NC |
| 17524 | 28 Nov 26 | Black Mountain Turkey Burner | 5K/10K/13.1M | San Diego, CA |
| 17525 | 20 Jun 26 | Black Mountain 50K | 13.1M/25K/50K | San Diego, CA |
| 17526 | 23 May 26 | Black Moshannon 5K/10K | 5K/10K | Bellefonte, PA |
| 17527 | 05 Sep 26 | Black Hog Brewing Co. 5K | 5K | Oxford, CT |
| 17528 | 23 May 26 | Black Hills Youth Races | youth duathlon/youth triathlon | Spearfish, SD |
| 17529 | 19 Sep 26 | Black Hills Veteran March and Marathon | 16M/26.2M | Deadwood, SD |
| 17530 | 26 Jun 26 | Black Hills 100 | 100M | Sturgis, SD |
| 17531 | 17 Oct 26 | Black Hill Park | 10K | Boyds, MD |
| 17532 | 13 Sep 26 | Black Hawk YMCA Triathlon | Sprint Triathlon/Sprint Triathlon Relay | Waterloo, IA |
| 17533 | 18 Oct 26 | Black Hawk Ridge Trail Run | 8K/16K | Madison, WI |
| 17534 | 07 Jun 26 | Black Hat Brew 5K | 5K | Bridgewater, MA |
| 17535 | 06 Sep 26 | Black Goose Half marathon | 5K/10K/13.1M | North Kingstown, RI |