Boise Marathon
- Date
- June 20, 2026
- Location
- Payette Brewing, 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:
-
Spring - Boise River Marathon - May 2, 2026
-
Summer - Boise Marathon - You found it!!!
-
Fall - City of Trees Marathon - October 10, 2026
-
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, 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)
Events
Weather
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
83°
Typical Low
55°
Chance of Rain
15%
Based on US Climate Normals data from Boise Air Terminal, 2 mi from the venue.
Host City
About Boise, ID
Population
235,701
as of 2023
Nearest Airport
BOI
Boise Air Terminal/Gowen Field · 1 mi
Time Zone
Mountain Time
From Endurance Grid
A mid-size host city. Enough lodging and amenities to keep race weekend easy, without big-city sprawl.
Race Location
Your Next Start Line
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at Boise Marathon, put it on the calendar, and turn “someday” into a start date.
Coming Up
More Running races near Boise, ID
Bogus Trail Series
Less than a mile away
Christmas 5K/10K/Half Marathon in July - Boise
Half Marathon · 10K · 5K
Less than a mile away
GOTR Mile Presented By Hoopla
Less than a mile away
Boise Front Trail Festival
Less than a mile away
From Endurance Grid
About This Sport
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.
Frequently Asked Questions (FAQs)
- What is the Boise Marathon?
- Boise Marathon is a running race held in Boise, Idaho on June 20, 2026. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more running races near you or explore our sports guides to learn what race day actually feels like.
- When and where is the Boise Marathon?
- Saturday, June 20, 2026 in Boise, Idaho at Payette Brewing, Boise, ID. Check the event page for exact start times and wave schedules.
- How do I register for the Boise Marathon?
- Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.
Boise Marathon
Jun 20, 2026