| 15016 | 26 Jul 25 | University Place Twisted Cider 5K | 5K | University Place, WA |
| 15017 | 21 Sep 25 | University Run | 5K/10K | Houston, TX |
| 15018 | 03 Aug 25 | Unleashed at Stadium Bowl | stair climb | Tacoma, WA |
| 15019 | 28 Sep 25 | Unlimited Breadsticks Trail Race Half Marathon | 13.1M | Victor, NY |
| 15020 | 04 Oct 25 | Unmask Domestic Violence Costume Fun Run | 2K/5K | Sturgeon Bay, WI |
| 15021 | 21 Aug 25 | UnWINEd at Bishop Estate Vineyard and Winery 5K | 5K | Perkasie, PA |
| 15022 | 02 Aug 25 | Up & Over Trail Run Weekend | 10K | Taos Ski Valley, NM |
| 15023 | 05 Oct 25 | UP Friends of Honduras 5K | 5K | Powers, MI |
| 15024 | 24 Aug 25 | UP Northwoods Triathlon | Olympic/Sprint Duathlon/Sprint Triathlon/Sprint Triathlon Relay/youth triathlon | Iron Mountain, MI |
| 15025 | 26 Jul 25 | Up, Up, and Away 5K | 5K | Bellevue, OH |
| 15026 | 08 Nov 25 | Upchuck 50K | 50K | Chattanooga, TN |
| 15027 | 01 Sep 25 | Upland Labor Day 5K Run and 2.5K Walk | 5K | Upland, IN |
| 15028 | 27 Nov 25 | Upland Turkey Trot 5K | 5K | Upland, CA |
| 15029 | 25 Oct 25 | Upper Cumberland Haunted Half Marathon | 5K/13.1M | Cookeville, TN |
| 15030 | 13 Sep 25 | Uprise Festival 5K | 5K | Shippensburg, PA |