| 526 | 07 Jun 26 | 2026 Sager Creek Triathlon | triathlon | Siloam Springs, AR |
| 527 | 28 Jun 26 | 2026 San Diego International Triathlon | triathlon | San Diego, CA |
| 528 | 28 Jun 26 | 2026 San Diego International Triathlon & Waterfront 5K | 5K | San Diego, CA |
| 529 | 10 Jan 26 | 2026 San Diego Resolution Run | 10K/5K | San Diego, CA |
| 530 | 12 Dec 26 | 2026 Santa Monica-Venice Christmas Run | 10K/5K | Santa Monica, CA |
| 531 | 07 Jun 26 | 2026 Sarcoma Shuffle 5k/10k | 10K/5K | Silver Spring, MD |
| 532 | 28 Mar 26 | 2026 Savin Rock Marathon & Half Marathon | Half Marathon/Marathon | West Haven, CT |
| 533 | 25 Apr 26 | 2026 Seamark MudRun | 5K | Green Cove Springs, FL |
| 534 | 28 Jun 26 | 2026 Sebago Lake Triathlon | triathlon | Standish, ME |
| 535 | 01 Aug 26 | 2026 Seeley Lake Challenge Triathlon/Duathlon | triathlon | Seeley Lake, MT |
| 536 | 19 Jul 26 | 2026 Semper Fi 5k/10k/1M | 10K/1M/5K | Falmouth, VA |
| 537 | 15 Mar 26 | 2026 Shamrock Run Fest presented by Toyota | 5K/8K | Portland, OR |
| 538 | 02 Aug 26 | 2026 Shawnee Mission Triathlon & Duathlon | triathlon | Shawnee, KS |
| 539 | 16 May 26 | 2026 She Tris Sprint Triathlon - I'On Club | triathlon | Mount Pleasant, SC |
| 540 | 21 Jun 26 | 2026 She Tris Sprint Triathlon - South Charlotte | triathlon | Charlotte, NC |