| 1741 | 17 Oct 26 | South Texas Ultra | ['50K'/ '35K'/ '17K'/ '5K'/ 'Ultra'] | Leakey, TX |
| 1742 | 10 May 26 | South Texas Rollers Mother's Day 5K | 5K | Corpus Christi, TX |
| 1743 | 01 Aug 26 | South Texas Rollers Cross Country Invitational Season Opener | 5K | Corpus Christi, TX |
| 1744 | 26 Sep 26 | South Shore "3 Beach Minimum" Half Marathon | 13.1 | Hull, MA |
| 1745 | 25 May 26 | South Salem Races | 5K/10K | South Salem, NY |
| 1746 | 31 May 26 | South Ridge Trail Challenge | 5K/10K/20K | Allison Park, PA |
| 1747 | 08 Aug 26 | South Orange Family YMCA Kid's Triathlon | youth triathlon | Walden, NY |
| 1748 | 02 May 26 | South Mountain Half Marathon | 13.1M | Sandy, UT |
| 1749 | 20 Jun 26 | South Haven Triathlon | 25K | South Haven, MI |
| 1750 | 31 May 26 | South Fork Sampler: A Multisport Adventure Race | 3H adventure race/5H | Cramerton, NC |
| 1751 | 27 May 26 | South Fork Duathlon | Sprint Duathlon | Whitehouse, OH |
| 1752 | 30 May 26 | South Fayette Glow Run | 1M/5K | McDonald, PA |
| 1753 | 30 May 26 | South Fayette Glow Run | 1M/5K | McDonald, PA |
| 1754 | 16 May 26 | South Fayette Bridgeville 5K | 5K | McDonald, PA |
| 1755 | 25 Jul 26 | South Chicago Track Club Twilight Distance Night | 0.5M/1M/5K/10K | Chicago, IL |