Saturday, September 25, 2021 • Boise, ID • Course Map
The capital of Idaho plays host to the annual FitOne Boise Half Marathon, 10K & 5K, taking place on the fourth Saturday of September.
Beginning near the State Capitol Building in downtown Boise, runners begin the half marathon by heading north and then east along Jefferson Street. After a right turn and a trip past Municipal Park, the half marathon course continues east along East Warm Springs Avenue for several miles.
After turning around near East Parkcenter Boulevard, the half marathon course continues west until turning right at River Run Drive and continues weaving through the assorted paved courses and roads along the Boise River. Runners make their way toward Julia Davis Park, home of attractions such as Zoo Boise, Idaho Black History Museum, and the Discovery Center of Idaho.
The last section of the course leads runners south along the western part of the Boise State University campus before looping northwest and finishing in Ann Morrison Park.
The half marathon (as with all the FitOne races) welcomes walkers, but walkers should keep in mind that roads will reopen to traffic at 11:00 AM – 3 hours, 45 minutes after the half marathon starts.
Race Weather & Climate
Located in southwestern Idaho, Boise experiences warm and dry weather with some cool mornings in September. Temperatures can range as low as 23° (1970) and as high as 102° (1945).
On race day (Sep. 25), the average low is 48ºF and the average high is 74ºF.
- 2019 FitOne Half Marathon results
- 2018 FitOne Half Marathon results
- 2017 FitOne Half Marathon results
- 2016 FitOne Half Marathon results
- 2015 FitOne Half Marathon results
- 2014 FitOne Half Marathon results
- 7:15 AM – half marathon
- 7:30 AM – 10K
- 9:00 AM – 5K
- $30 – $55 for the half marathon
- $30 – $45 for the 10K
- $30 – $35 for the 5K
To reserve your spot in the 2021 running of Boise’s FitOne Half Marathon, 10K or 5K, register online at RunSignUp.com here.
Official Race Website
Ever run in the FitOne Half Marathon? Share your impressions here, or post your review in the Comments below.