Idaho · Marathon · Half Marathon · 10K
Boise River Marathon, Half, 10K & 5K
Boise River Marathon, Half, 10K & 5K is a marathon, half marathon, 10K and 5K event held in Boise, Idaho. Its next confirmed date is Sunday, May 2, 2027. About 400 runners take part across all distances.
- Race day
- May 2, 2027
- Location
- Boise, ID
- Field size
- ~400 runners
Race details
- Date
- Sunday, May 2, 2027
- Location
- Boise, Idaho
- Distances
- Marathon, Half Marathon, 10K, 5K
- Field size
- About 400 runners
- Course
- Flat (Boise River banks)
- Registration
- runsignup.com
- Official website
- boiserivermarathon.com
Registration, course & weather
- Registration status
- Open
- Entry fee
- Listed fee for the longest distance, $60 (from boiserivermarathon.com, checked September 25, 2026)
- Start time
- 6:30 AM MDT
- Course profile
- Out-and-back course; Road surface; Not USATF certified; Not a Boston qualifier
About the Boise River Marathon, Half, 10K & 5K
A flat spring race starting in Ann Morrison Park and following the scenic banks of the Boise River, offering marathon through 5K distances.
Rankings and notes
- Rankings and awards
- USATF-certified; flat Boston-qualifying potential along the river
More marathons in Idaho
Coming up next, by confirmed date.
More races in Boise
More upcoming races in Idaho
-
Endless Trails Series RegistrationsMcCall, IDVirtual virtuosoVirtual long legsIn-person long legsVirtual shorties +2 more
Keep exploring
- All races in Idaho
- 5Ks in Idaho 37 upcoming races
- 10Ks in Idaho 18 upcoming races
- Half Marathons in Idaho 25 upcoming races
- Marathons in Idaho 14 upcoming races
- Running in Boise 19 upcoming races
- 5Ks in the United States 6,420 upcoming races
- 10Ks in the United States 2,756 upcoming races
- Half Marathons in the United States 1,828 upcoming races
- Marathons in the United States 649 upcoming races
- Spring Marathons
- May Marathons
- May races in Idaho
- Marathons in Washington 26 upcoming races
- Marathons in Utah 23 upcoming races
- Marathons in Nevada 14 upcoming races
- Marathons in Montana 11 upcoming races
Guides from the RaceRove blog
- 8 min read How to Choose Your First Marathon A practical checklist for choosing a first marathon based on course, weather, cutoff, travel, field size and support.
- 7 min read How to Find a 5K, 10K, Half Marathon or Marathon Near You A practical way to find running races near you: pick a distance, decide how far you'll travel, read the listing properly and confirm the details before you register.
- 9 min read How to Run a Race in All 50 States How to plan a 50-state running challenge: set your own rules, group states into trips, build a calendar around the seasons, budget for it and keep track of every finish.
- Blog All guides Planning advice for finding, choosing and travelling to races.
Boise River Marathon, Half, 10K & 5K: common questions
- When is the Boise River Marathon, Half, 10K & 5K?
- The next confirmed date is Sunday, May 2, 2027.
- Where is the Boise River Marathon, Half, 10K & 5K held?
- In Boise, Idaho.
- What distances does the Boise River Marathon, Half, 10K & 5K offer?
- Marathon, Half Marathon, 10K and 5K.
- How many people run the Boise River Marathon, Half, 10K & 5K?
- About 400 runners across all of its distances. That figure is an estimate of the field size, not an entry cap.
- How do I register for the Boise River Marathon, Half, 10K & 5K?
- Registration is handled by the organiser at runsignup.com. Entry fees, caps and deadlines are set there.
- Is registration open for the Boise River Marathon, Half, 10K & 5K?
- Yes — registration is open. Listed fee for the longest distance, $60 (from boiserivermarathon.com, checked September 25, 2026).
- What time does the Boise River Marathon, Half, 10K & 5K start?
- 6:30 AM MDT.
- What is the course like at the Boise River Marathon, Half, 10K & 5K?
- Out-and-back course; Road surface; Not USATF certified; Not a Boston qualifier.
Plan this race in RaceRove
Save it to your plan, compare it with other races, check typical race-day weather and track your 50-state progress in the interactive app.