| 10516 | 22 May 26 | 2026 Lakeside Double Sprint Triathlon | triathlon | Greenville, SC |
| 10517 | 11 Jul 26 | 2026 Lake Zurich Triathlon | triathlon | Lake Zurich, IL |
| 10518 | 25 Jul 26 | 2026 Lake Springfield Triathlon | triathlon | Springfield, IL |
| 10519 | 25 Apr 26 | 2026 Lake Norman State Park Sprint Triathlon | triathlon | Troutman, NC |
| 10520 | 05 Sep 26 | 2026 Lake Nighthorse Triathlon | triathlon | Durango, CO |
| 10521 | 19 Apr 26 | 2026 Lake Murray Sprint Triathlon | triathlon | Prosperity, SC |
| 10522 | 07 Jun 26 | 2026 Lake Mills Triathlon | triathlon | Lake Mills, WI |
| 10523 | 17 May 26 | 2026 Lake Lou Yaeger Triathlon | triathlon | Litchfield, IL |
| 10524 | 25 Jul 26 | 2026 Lake Country Triathlon | triathlon | Oconomowoc, WI |
| 10525 | 15 Feb 26 | 2026 Kiss My Asphalt 5k/10k/1M | 10K/1M/5K | Fredericksburg, VA |
| 10526 | 08 Aug 26 | 2026 Kill Creek Park Triathlon & Duathlon | triathlon | Olathe, KS |
| 10527 | 17 Jan 26 | 2026 Key West Half Marathon and Runfest | 5K | Key West, FL |
| 10528 | 07 Jun 26 | 2026 Keuka Lake Triathlon | triathlon | Keuka Park, NY |
| 10529 | 16 May 26 | 2026 Kettle Krush 5K | 1K/5K | Marietta, GA |
| 10530 | 17 May 26 | 2026 Kansas City Triathlon | triathlon | Kansas, MO |