| 166 | 19 Apr 25 | Knobstone 50 | Ultra/50M | Borden, IN |
| 167 | 17 May 25 | East Texas Ultra | Ultra/50K/28K | Pittsburg, TX |
| 168 | 14 Jun 25 | Fire Trail Running Festival | Ultra/50K/25K/8K | Spring Branch, TX |
| 169 | 25 Apr 25 | Smoky Mountain Relay | Ultra/208M | Pisgah Forest, NC |
| 170 | 05 Jun 25 | IronHike Endurance Series - Spring - Mohawk Mountain, CT, USA | Ultra/15M/28M/43M/61M/152M | Cornwall, CT |
| 171 | 18 May 25 | East Texas Ultra | Ultra/14K/7K | Pittsburg, TX |
| 172 | 30 Aug 25 | Chupacabra Endurance 10-hour Run | Ultra/10H | Westville, IN |
| 173 | 27 Jun 25 | Copper Kings 100 | Ultra/100M | Butte, MT |
| 174 | 25 May 25 | Ski to Sea | ultra triathlon relay | Bellingham, WA |
| 175 | 05 May 25 | EPIC5 Hawaii Ultra Triathlon | ultra triathlon | Hanalei, HI |
| 176 | 28 Nov 25 | Ultraman World Championships | ultra triathlon | Kailua-Kona, HI |
| 177 | 21 Mar 25 | Ultraman Arizona | ultra triathlon | Phoenix, AZ |
| 178 | 05 Sep 25 | Smith Mountain Lake Ultra Triathlon | ultra duathlon/ultra triathlon/ultra triathlon relay | Huddleston, VA |
| 179 | 08 Sep 25 | Wisconsin ANVIL Ultra Triathlon | ultra duathlon/ultra triathlon/ultra triathlon relay | Dousman, WI |
| 180 | 24 Jul 25 | Washington Island Ultra Relay | ultra duathlon/ultra duathlon relay/ultra triathlon/ultra triathlon relay | Washington Island, WI |