YMCA Famous Idaho Potato Marathon & Fun Runs
Boise's flat and fast Greenbelt hosts the 50th anniversary Idaho Potato Marathon and Half Marathon.
Race Date
May 15, 2027
Location
Boise, ID
Quick facts
- Date
- Saturday, May 15, 2027
- Location
- Boise, Idaho
- Distance
- Half marathon (13.1 mi) + 26.2 Miles, 10K, 5K
- Course
- Loop Course
- Terrain
- Road
- USATF certified
- Not listed
- Finishers on record
- 18,176
Highlights
Good For
Atmosphere
Course
The Experience
The YMCA Famous Idaho Potato Marathon and Half Marathon celebrates its 50th anniversary, drawing runners from across approximately 32 states to Boise's scenic Greenbelt. This beloved event, first run in 2004 and now in its 22nd year, offers a flat and fast course ideal for personal bests.
Runners will experience the entirety of the Boise Greenbelt, a paved pathway known for its pleasant scenery. All races, including the half marathon, start and finish at The Morrison Center, providing a convenient hub for participants. With a median field size of around 1550 finishers and a growing trend, the event fosters a welcoming atmosphere.
While the repeat-runner rate hovers around 16%, the event's heritage, scale, and geographic draw make it a notable fixture. Participants can look forward to a well-organized race day experience, complete with a T-shirt giveaway and the chance to visit vendors at packet pickup.
Race-provided description
YMCA Famous Idaho Potato Marathon & Fun Runs The Treasure Valley YMCA is proud to bring you the 50th anniversary YMCA Famous Idaho Potato Marathon and Fun Runs presented by the Idaho Potato Commission. All of our races take place on the flat and scenic Boise Greenbelt. All races start and finish at The Morrison Center All courses are flat and fast for this fun full, half, 10K & 5K run on the Boise Greenbelt. Packet Pick Up: Friday, May 14th, 3:00-7:00 pm at the Morrison Center for all distances! Come pick up your packet and t-shirt, and visit with vendors before race day to ensure you have all the last-minute race day items. Avoid the lines on race day and pick up your packet on Friday. Day Of Packet Pick Up: Sat, May 14, 5-10:30 am Start Times: Marathon – 7 am Half Marathon – 9 am 10K – 10:00 am 5K – 10:30 am
Logistics
Race Day
Saturday, May 15, 2027
Start Time
9:00 AM
Giveaway
T-Shirt
Start Location
2201 W Cesar Chavez Ln, Boise, ID, 83702
Course Info
Course Type
Loop Course
Terrain
road
Scenery
Park
Surface
Paved
Difficulty
Ultra-Flat
Net Drop/km
0 m (Flat)
Separation
0.0%
Also Offers
Quality Score
Standout7522 years running
~1,550 finishers a year
growing or steady
16% returning runners
5 timing sources
runners from 32 states
winner 1:13:33
typical high 73°F
Race Day Weather
5-year historical avgStart (Low)
49°
Afternoon (High)
73°
Warm — hydration strategy is key, start conservatively
0.0"
Precipitation
12 mph
Wind
44%
Humidity
Historical Finish Times
How 18,176 finishers actually crossed the line across 22 years.
Most recent
2026
Total finishers
18,176
Median time
2:07:33
Latest turnout
775
States
50
Turnout by year
2018–2026
Hover the histogram to inspect specific finish times.
Frequently asked
When is the YMCA Famous Idaho Potato Marathon & Fun Runs?
The YMCA Famous Idaho Potato Marathon & Fun Runs is held on Saturday, May 15, 2027, starting at 9:00 AM.
Where does the YMCA Famous Idaho Potato Marathon & Fun Runs take place?
It takes place in Boise, Idaho.
What distances does the YMCA Famous Idaho Potato Marathon & Fun Runs offer?
The half marathon (13.1 miles), plus 26.2 Miles, 10K, 5K.
Is the YMCA Famous Idaho Potato Marathon & Fun Runs course flat and good for a PR?
The YMCA Famous Idaho Potato Marathon & Fun Runs is a ultra-flat, loop course course.
How many people run the YMCA Famous Idaho Potato Marathon & Fun Runs?
HalfRuns has finish records for 18,176 runners who have completed the YMCA Famous Idaho Potato Marathon & Fun Runs.
HalfRuns editorial — independent, no paid placement.
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