| 4066 | 31 Oct 26 | Halloween Trick or Trot Run 5K/10K/13.1 SAN DIEGO | 1M/5K/10K/13.1M | San Diego, CA |
| 4067 | 31 Oct 26 | Halloween Trick or Trot Run 5K/10K/13.1 SAN FRANCISCO | 1M/5K/10K/13.1M | San Francisco, CA |
| 4068 | 31 Oct 26 | Halloween Trick or Trot Run 5K/10K/13.1 SEATTLE | ['5K'/ '10K'/ 'Half Marathon'/ '1M'] | Seattle, WA |
| 4069 | 31 Oct 26 | Halloween Trick or Trot Run 5K/10K/13.1 TAMPA | 1M/5K/10K/13.1M | Tampa, FL |
| 4070 | 17 Oct 26 | HalloWin 5K | 5K | North Canton, OH |
| 4071 | 31 Oct 26 | Hallowine Run | 5K | San Antonio, TX |
| 4072 | 20 Nov 26 | Hallucination 6/12/24 Hour Trail Run | 12H/24H/6H trail run | Johns Island, SC |
| 4073 | 03 Apr 27 | Halsema Trailhead parkrun | 5K | Jacksonville, FL |
| 4074 | 17 Apr 27 | Hamil Kerr Challenge | 5K | Jamestown, NC |
| 4075 | 26 Nov 26 | Hamilton Turkey Trot | 5K/10K | Hamilton, OH |
| 4076 | 19 Sep 26 | Hammond Firefighters 911 Memorial Run | 1M/5K | Hammond, LA |
| 4077 | 06 Dec 26 | Hammonton Rotary's Galloping Grinch's 5K | 5K | Hammonton, NJ |
| 4078 | 14 Nov 26 | Hampton Falls Tiger Trot | 5K | Hampton Falls, NH |
| 4079 | 07 Mar 27 | Hampton Half Marathon | 5K/13.1M | Hampton, NH |
| 4080 | 07 Nov 26 | Hamsterwheel | 12H/24H/30H/6H relay/6H trail run | New Boston, NH |