Boise Marathon
- Date
- June 20, 2026
- Location
- TBD, Boise, ID
- Distance
- Marathon · Half Marathon · 10K & more
From the Organizer
Welcome to the Boise Marathon. The Boise Marathon will offer the summer option for our marathon series. June 20th promises to be one of the longest Boise days. Sunrise is at 6:04 a.m. and while Sunset is scheduled for 9:30 p.m., you know that Boise sun can hang in the sky until late into the evening. We can't imagine a more perfect day to run our Summer Marathon.
DISCLAIMER: Boise also likes to offer multiple weather seasons throughout a June day. We'll promise the sunrise/sunset time, not sure about what season.
Marathon Series:
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Spring - Boise River Marathon - May 2, 2026
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Summer - Boise Marathon - You found it!!!
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Fall - City of Trees Marathon - October 10, 2026
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Winter - Boise Half Marathon - November TBD 2026
Courses:
One of the most scenic courses in the country located in beautiful Boise, Idaho. You will wander through canyons, trees, riverside neighborhoods and some of the prettiest parks in the country!
Great Swag:
We'll follow our usual recipe of race production to include our coveted race shirt (we're thinking of something other than the t-shirt hoodie for this race), sweet swag, and finisher food/drink. ALL participants will get a finisher's medal. Please note that registrants registering within 2 weeks of race date may not be guaranteed a shirt. (We'll do the best we can. We're cutting off registrations once we think we can no longer get you a shirt or a medal. Medals are easy... but we don't know what shirt size folks are until they register so there's no way to know. Thanks to all who register early!!!)
Another race put on by team SoleKIDs. (www.solekids.org)
Distances & Pricing
Race Location
About This Sport
From Endurance Grid's Founder
Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.
The half marathon is the distance where you find out what you're actually made of. Long enough to demand real preparation. Short enough that it doesn't consume your life to train for it. Most people who run their first half describe it as the race that changed their relationship with what they're capable of. Once you cross this finish line, the bar moves. That's not a warning — that's the point.
Race day energy varies by event size, but the finish line feeling is the same regardless. Big races keep the noise going the whole way. Smaller races give you stretches where it's just you and the miles — and that solitude becomes its own kind of fuel.
The half marathon rewards people who show up for the boring training miles.
How long to train: 10–14 weeks. If you're already running consistently, 10 weeks of structured buildup is enough. If you're building from a casual base, give yourself 14.
Running
From 5K to marathon, running races are the most accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Coming Up
More running races in ID
Memorial Day 5K/10K/15K - Boise
15K · 10K · 5K
Anytime Fitness Rigby Lake Run
Running for Children's Rights to Both Parents - 7 of 50 Half Marathons in 50 States - Idaho
Half Marathon
Dash for Down Syndrome
Frequently Asked Questions (FAQs)
- What is the Boise Marathon?
- Boise Marathon is a running event held in Boise, ID. Learn more about the different endurance sports here.
- When and where is the Boise Marathon?
- Saturday, June 20, 2026 in Boise, ID at TBD, Boise, ID. Check the official event page for exact start times and wave schedules.
- How do I register for the Boise Marathon?
- Registration is handled through their official registration page. Confirm pricing, distances available, and sign up there.
Boise Marathon
Jun 20, 2026