Idaho Half Marathons by Date • By City
Browse all 2020 Idaho half marathons by month below. For each race, you’ll find course maps, elevation profiles, runner reviews, and how to sign up.
When you view a race, you’ll also find contact info if you’re having problems with your registration or need to contact the race directors.
April 2020
| Sat Apr 18 | Race to Robie Creek Half Marathon | Boise ID |
May 2020
| Sat May 30 | Famous Idaho Potato Marathon Half Marathon 10K & 5K | Boise ID |
June 2020
| Thu Jun 11 | Bear Lake Trifecta Marathon & Half Marathon | Montpelier ID |
July 2020
| Sat Jul 25 | Idaho Falls Marathon Half Marathon & 5K | Idaho Falls ID |
August 2020
| Wed Aug 12 | Northwest Series Marathon Half Marathon 10K & 5K – Day 5 | Lewiston ID |
| Thu Aug 13 | Northwest Series Marathon Half Marathon 10K & 5K – Day 6 | Lewiston ID |
| Sat Aug 22 | Mesa Falls Marathon Half Marathon 10K & 5K | Ashton ID |
September 2020
| Sat Sep 5 | Pocatello Marathon Half Marathon 10K & 5K | Pocatello ID |
| Sat Sep 12 | Riggins Salmon Run Half Marathon 10K & 5K | Riggins ID |
| Sun Sep 13 | Jack and Jill's Downhill Marathon & Half Marathon | Boise ID |
| Sat Sep 19 | Sun Valley Half Marathon | Sun Valley ID |
| Sun Sep 20 | Scenic Half Marathon & 10K | Sandpoint ID |
| Sat Sep 26 | FitOne Half Marathon 10K & 5K | Boise ID |
October 2019
| Sun Oct 13 | City of Trees Marathon & Half Marathon | Boise ID |
| Sat Oct 19 | Hayden Lake Marathon Half Marathon & Quarter Marathon | Hayden ID |
| Sun Oct 27 | Onward Shay Boise Marathon Half Marathon 10K & 5K | Boise ID |
November 2019
| Sat Nov 2 | Zeitgeist Half Marathon | Boise ID |
