| 6346 | 19 Sep 26 | Jack 15 Road Race | 15.2M | Brookings, SD |
| 6347 | 08 Oct 26 | J.P. Morgan Corporate Challenge - Philadelphia | 3.5M | Philadelphia, PA |
| 6348 | 10 Sep 26 | J.P. Morgan Corporate Challenge | 3.5M | San Francisco, CA |
| 6349 | 19 Sep 26 | J.J. The Jet Plane Foundation 5K For Pediatric Cancer | 5K | Frenchburg, KY |
| 6350 | 27 Sep 26 | J-Hawk Latebird Race Series: Triathlon/Duathlon | Olympic/Sprint/Sprint Triathlon Relay/duathlon/supersprint triathlon | Whitewater, WI |
| 6351 | 27 Sep 26 | IUP College of Health Sciences Run for the Health of It 5K | 5K | Indiana, PA |
| 6352 | 12 Sep 26 | IU Indianapolis Jaguar 5K | 5K | Indianapolis, IN |
| 6353 | 12 Dec 26 | ITMS Howl-iday Hustle, Run, Walk, and Play | 5K | Winter Springs, FL |
| 6354 | 19 Sep 26 | Ithaca Tompkins Regional Airport Runway 5K | 5K | Ithaca, NY |
| 6355 | 13 Sep 26 | Ithaca 5 & 10 | 5K/10K | Ithaca, NY |
| 6356 | 03 Apr 27 | ITC Community Sports parkrun | 5K | Novi, MI |
| 6357 | 12 Sep 26 | Itasca Oktoberfast 5K | 5K | Itasca, IL |
| 6358 | 19 Sep 26 | Italian Fest 5K | 5K | Collinsville, IL |
| 6359 | 19 Sep 26 | It's Okay if you're NOT Okay 5K | 5K | Owensboro, KY |
| 6360 | 22 Nov 26 | It's Leg Day 5K | 5K | Canfield, OH |