| 586 | 28 Feb 26 | 2026 Six Seven Bruh Virtual Race Benefitting Stand Up for Kids | Virtual | Mobile, AL |
| 587 | 18 Apr 26 | 2026 Sky Rim Duathlon | triathlon | Durango, CO |
| 588 | 02 May 26 | 2026 Smith Mountain Lake SPRINT Triathlon | triathlon | Huddleston, VA |
| 589 | 11 Apr 26 | 2026 Smithfield Sprint Triathlon | triathlon | Smithfield, VA |
| 590 | 08 Mar 26 | 2026 Smoketown Brewery 5k/10k | 10K/5K | Brunswick, MD |
| 591 | 23 May 26 | 2026 Soldier Field 10 | 10K | Chicago, IL |
| 592 | 21 Feb 26 | 2026 South Davis Indoor Triathlon - February | triathlon | Bountiful, UT |
| 593 | 14 Mar 26 | 2026 South Davis Indoor Triathlon - March | triathlon | Bountiful, UT |
| 594 | 24 Oct 26 | 2026 South Padre Island Muzicians Run 5k/10k | 5K/10K | South Padre Island, TX |
| 595 | 03 Jun 26 | 2026 Southern Tier Triathlon Club (STTC) Summer Tri Series #1 | triathlon | Cassadaga, NY |
| 596 | 08 Nov 26 | 2026 Southwest Series - Day 1 (NM) | 5K/10K | Farmington, NM |
| 597 | 09 Nov 26 | 2026 Southwest Series - Day 2 (CO) | 5K/10K | Durango, CO |
| 598 | 10 Nov 26 | 2026 Southwest Series - Day 3 (UT) | 5K/10K | Bluff, UT |
| 599 | 11 Nov 26 | 2026 Southwest Series - Day 4 (AZ) | 5K/10K | Flagstaff, TN |
| 600 | 12 Nov 26 | 2026 Southwest Series - Day 5 (NV) | 5K/10K | Laughlin, NV |