Boise MarathonBoise ID
26.2Marathon
$95 thru Feb 28
Sunday, June 20, 2027 · Boise, Idaho
26.2 miles through Boise, starting and finishing right at Payette Brewing — a 6:04 AM sunrise start built to beat the summer heat. Four distances, one finish line festival back where you started.
The course
Boise summers run hot, so the Boise Marathon starts early — 6:04 AM, before first light fully breaks over the valley. The course rolls out from Payette Brewing while the air is still cool.
From there the route follows the Boise River Greenbelt out along one bank, crosses a pedestrian bridge around the halfway point, and returns along the opposite bank straight back to Payette Brewing — nothing steep, just shaded path and water the whole way. Aid, ice, and shade are staged heavier through those closing miles.
Start and finish share the same address, so there's no shuttle to catch — park once at Payette Brewing and you're steps from both the start line and the after-party.
Registration
| Distance | Thru Feb 28 | Mar 1 – Jun 6 | Jun 7 – Race week |
|---|---|---|---|
| Marathon | $95 | $110 | $125 |
| Half Marathon | $80 | $92 | $105 |
| 10K | $60 | $70 | $80 |
| 5K | $45 | $55 | $65 |
Free distance transfers until June 6 · Deferral to 2028 available until May 23
Race weekend
Payette Brewing — grab your bib, shirt, and race guide.
The race directors walk through the route, parking, and heat-safety plans. Repeats at 2 and 4.
Easy 2 miles on the Greenbelt with local pacers, timed to dodge the afternoon heat.
Can't make it? Race-morning pickup opens at 5:00 AM.
Can't make Saturday? Grab your bib at Payette Brewing starting at 5:00 AM.
Drop your bag at Payette Brewing before the corrals fill in.
First light over the valley — the earliest start in the Boise Four.
Misting tents, shade, cold drinks, food trucks, and live music back at Payette Brewing.
Overall and age-group awards for every distance, out of the worst of the midday sun.
6:30 after the marathon start. We'll be cheering to the last finisher.
Every entry includes
A lightweight, sun-ready Boise Marathon tee in this year's design. Guaranteed for everyone registered by June 6.
A custom sunrise-over-the-foothills medal for every finisher, every distance.
Live splits and finish alerts your family can follow from anywhere on the course — or from home.
Pro photographers at the start, mid-course, and the finish. Full-resolution downloads, no watermarks.
Water and electrolytes every 2 miles, with ice and misting stations stacked through the hot closing miles.
A cold Payette Brewing pour waiting at the finish for every runner 21+ (root beer for the rest of the crew).
Questions
Boise regularly hits the high 80s and 90s by early afternoon in June. Starting before sunrise gets the marathon field through most of its miles while it's still cool, and keeps the back of the pack off the course before the real heat sets in.
Start and finish are both at Payette Brewing, so there's no shuttle needed — park for free on-site and walk to the corrals.
Yes — transfers between distances are free until June 6. If you move to a shorter distance we'll refund the difference; moving up just costs the difference at your original pricing tier.
Entries are non-refundable, but you can defer to the 2028 race for free until May 23, or transfer your bib to another runner until June 6.
We plan around the heat — early start, extra ice and misting stations, and a hard 12:34 PM course close. If temperatures spike beyond safe limits on race morning, we'll adjust the course or cutoff and notify every runner by email and text.
Headphones are fine — keep one ear open on the shared road sections. Strollers are welcome in the 5K. Dogs love the Greenbelt but have to sit this one out.