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!!!)
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
Frequently Asked Questions (FAQs)
- What is the Boise River Marathon?
- Boise River Marathon is a running event held in Boise, ID. Learn more about the different endurance sports here.
- When and where is the Boise River Marathon?
- Sunday, May 2, 2027 in Boise, ID at Treasure Valley, Boise, ID. Check the official event page for exact start times and wave schedules.
- How do I register for the Boise River Marathon?
- Registration is handled through their official registration page. Confirm pricing, distances available, and sign up there.
Boise River Marathon
May 2, 2027