Boise River Marathon
- Date
- May 2, 2027
- Location
- Treasure Valley, Boise, ID
- Distance
- Marathon · Half Marathon · 10k & more
From the Organizer
Experience the beauty of Boise like never before! The Boise River Marathon offers runners of all levels a unique course that winds along the stunning Boise River Greenbelt — a flat, fast, and scenic route perfect for setting personal records or enjoying a memorable first race.
Whether you're running the full marathon, half marathon, 10K, or 5K, you'll be surrounded by the natural beauty of Idaho and the support of an energetic, encouraging community. This is more than just a race — it’s a celebration of fitness, fun, and the spirit of Boise.
We believe in Boise, and we proudly highlight and partner with the small businesses that make our city special. From local vendors at the finish line to race-day sponsors and community events, your participation helps support the heartbeat of our town.
Why Run the Boise River Marathon?
🏞️ Gorgeous riverside views
👟 Fast, fast course
🎉 Family-friendly atmosphere
💪 Partnered with local health and fitness organizations
🌟 Custom medals, shirts, and unforgettable memories
Join us for a race you’ll never forget. Run the River. Celebrate the Journey. Support Local.
GREAT SWAG
Classic crew neck sweatshirt, swag, finisher food/drink, and 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!!!)
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
68°
Typical Low
44°
Chance of Rain
28%
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
Elevation
2,866 ft
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 River Marathon, put it on the calendar, and turn “someday” into a start date.
Coming Up
More Running races near Boise, ID
Boise Marathon
Marathon
Less than a mile away
Bogus Trail Series
Less than a mile away
GOTR Mile Presented By Hoopla
Less than a mile away
Christmas 5K/10K/Half Marathon in July - Boise
Half Marathon · 10K · 5K
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 River Marathon?
- Boise River Marathon is a running race held in Boise, Idaho on May 2, 2027. 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 River Marathon?
- Sunday, May 2, 2027 in Boise, Idaho at Treasure Valley, Boise, ID. Check the event page for exact start times and wave schedules.
- How do I register for the Boise River Marathon?
- Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.
Boise River Marathon
May 2, 2027