Boise River Marathon
Boise River Marathon offers a flat, fast course along scenic river views, perfect for PRs.
Race Date
May 2, 2027
Location
Boise, ID
Quick facts
- Date
- Sunday, May 2, 2027
- Location
- Boise, Idaho
- Distance
- Half marathon (13.1 mi) + 26.2 Miles, 6.2 Miles, 3.1 Miles, Virtual - any distance!
- Course
- Loop Course
- Terrain
- Road
- USATF certified
- Not listed
- Finishers on record
- 2,688
Highlights
Good For
Atmosphere
Course
The Experience
The Boise River Marathon unfolds along the picturesque Boise River Greenbelt, presenting a flat and fast course ideal for runners aiming for personal bests or a memorable debut. This race, now in its fifth edition, typically draws around 900 finishers, with participants traveling from approximately 29 states.
The event is more than just a race; it's a celebration of fitness and the vibrant spirit of Boise. Runners will experience the natural beauty of Idaho while being part of an energetic and encouraging community. The organizers also emphasize a strong connection with local businesses, making participation a way to support the local economy.
With a typical winning time around 79 minutes for the half marathon, the course is known for its speed. Participants can expect custom medals, shirts, and finisher food and drink, contributing to a rewarding race-day experience.
Race-provided description
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!!!)
Logistics
Race Day
Sunday, May 2, 2027
Start Time
8:00 AM
Giveaway
T-Shirt
Start Location
Treasure Valley, Boise, ID, 83616
Course Info
Course Type
Loop Course
Terrain
road
Scenery
Lake River
Surface
Paved
Difficulty
Ultra-Flat
Net Drop/km
0 m (Flat)
Separation
0.0%
Also Offers
Course Map
Quality Score
Standout665 years running
~900 finishers a year
growing or steady
12% returning runners
2 timing sources · 5 photos
runners from 29 states
winner 1:19:15
typical high 68°F
Race Day Weather
5-year historical avgStart (Low)
45°
Afternoon (High)
68°
Pleasant conditions — light layers at start, comfortable by finish
0.1"
Precipitation
14 mph
Wind
46%
Humidity
Historical Finish Times
How 2,688 finishers actually crossed the line across 5 years.
Most recent
2026
Total finishers
2,688
Median time
2:17:38
Latest turnout
896
States
41
Turnout by year
2022–2026
Hover the histogram to inspect specific finish times.
Race Photos
Frequently asked
When is the Boise River Marathon?
The Boise River Marathon is held on Sunday, May 2, 2027, starting at 8:00 AM.
Where does the Boise River Marathon take place?
It takes place in Boise, Idaho.
What distances does the Boise River Marathon offer?
The half marathon (13.1 miles), plus 26.2 Miles, 6.2 Miles, 3.1 Miles, Virtual - any distance!.
Is the Boise River Marathon course flat and good for a PR?
The Boise River Marathon is a ultra-flat, loop course course.
How many people run the Boise River Marathon?
HalfRuns has finish records for 2,688 runners who have completed the Boise River Marathon.
HalfRuns editorial — independent, no paid placement.
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