St. Luke's FitOne 5K/10K/Half Marathon
Boise's St. Luke's FitOne Half Marathon offers a fast, flat course with growing appeal.
Race Date
Sep 26, 2026
Location
Boise, ID
Quick facts
- Date
- Saturday, September 26, 2026
- Location
- Boise, Idaho
- Distance
- Half marathon (13.1 mi) + 5K, 10K
- Course
- Loop Course
- Terrain
- Road
- USATF certified
- Not listed
- Finishers on record
- 12,782
Highlights
Good For
Atmosphere
Course
The Experience
The St. Luke's FitOne Half Marathon in Boise, Idaho, has established itself as a popular fixture, drawing runners from across the country. With 10 editions on record and a growing field size, recently approaching 2,000 finishers, it's a testament to its appeal. Approximately 34% of participants are repeat runners, highlighting a loyal following.
The course is celebrated for its speed and flatness, making it an attractive option for those chasing personal bests. Runners typically experience mild, pleasant weather in late September, with average temperatures ranging from the low 50s to the high 70s.
Participants can expect a well-organized event that includes a T-shirt as part of the race swag. The half marathon is complemented by 5K and 10K options, catering to a range of running abilities.
Race-provided description
ST.LUKE'S FITONE 5K – 10K – HALF MARATHON September 26th, 2026
Logistics
Race Day
Saturday, September 26, 2026
Start Time
7:15 AM
Giveaway
T-Shirt
Start Location
700 W Jefferson St, Boise, ID, 83702
Course Info
Course Type
Loop Course
Terrain
road
Scenery
Urban
Surface
Paved
Difficulty
Ultra-Flat
Net Drop/km
0 m (Flat)
Separation
0.0%
Also Offers
Course Map
View Course Map
Open on RaceJoy
3 other maps for this race
Quality Score
Standout8010 years running
~1,745 finishers a year
growing or steady
34% returning runners
5 timing sources · 6 photos
runners from 28 states
winner 1:07:37
typical high 80°F
Race Day Weather
5-year historical avgStart (Low)
53°
Afternoon (High)
80°
Warm — hydration strategy is key, start conservatively
0.0"
Precipitation
11 mph
Wind
36%
Humidity
Historical Finish Times
How 12,782 finishers actually crossed the line across 10 years.
Most recent
2025
Total finishers
12,782
Median time
2:08:54
Latest turnout
1,926
States
44
Turnout by year
2016–2025
Hover the histogram to inspect specific finish times.
Race Photos
Frequently asked
When is the St. Luke's FitOne 5K/10K/Half Marathon?
The St. Luke's FitOne 5K/10K/Half Marathon is held on Saturday, September 26, 2026, starting at 7:15 AM.
Where does the St. Luke's FitOne 5K/10K/Half Marathon take place?
It takes place in Boise, Idaho.
What distances does the St. Luke's FitOne 5K/10K/Half Marathon offer?
The half marathon (13.1 miles), plus 5K, 10K.
Is the St. Luke's FitOne 5K/10K/Half Marathon course flat and good for a PR?
The St. Luke's FitOne 5K/10K/Half Marathon is a ultra-flat, loop course course.
How many people run the St. Luke's FitOne 5K/10K/Half Marathon?
HalfRuns has finish records for 12,782 runners who have completed the St. Luke's FitOne 5K/10K/Half Marathon.
HalfRuns editorial — independent, no paid placement.
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