Garmin Olathe Marathon, Half Marathon and 10K in the land of Oz
Race Date
Apr 25, 2026
Location
Olathe, KS
Quick facts
- Date
- Saturday, April 25, 2026
- Location
- Olathe, Kansas
- Distance
- Half marathon (13.1 mi) + 26.2 Miles, 6.2 Miles, 1.2 Miles
- Course
- Loop Course
- Terrain
- Road
- USATF certified
- Yes
- Finishers on record
- 21,052
The Experience
Join us for a marathon, half marathon, 10k, or munchkin run through the beautiful streets and trails of Olathe. This year marks the 23rd anniversary of the event, which began in 2003 as the Olathe Marathon, and is now hosted by Garmin at their world headquarters. The city of Olathe is just 20 minutes southwest of downtown Kansas City, located in Johnson County, Kansas. Come experience our Midwest charm in the Land of Oz!
Logistics
Race Day
Saturday, April 25, 2026
Start Time
6:45 AM
Giveaway
Unisex Short Sleeve Shirt (Poly/Cotton/Rayon Blend)
Start Location
Garmin International, Inc., Olathe, KS, 66062
Course Info
USATF CertifiedCourse Type
Loop Course
Terrain
road
Difficulty
Ultra-Flat
Net Drop/km
0 m (Flat)
Separation
0.0%
Also Offers
USATF Certified Course
KS21027TJD · Garmin Olathe Half Marathon 2023
Relatively flat with minimal net elevation change. Loop course — start and finish are close together.
Quality Score
Runner Favorite9219 years running
~2,584 finishers a year
growing or steady
20% returning runners
USATF certified · 5 timing sources · 14 photos
runners from 39 states
winner 1:14:04
typical high 69°F
Race Day Weather
5-year historical avgStart (Low)
51°
Afternoon (High)
69°
Pleasant conditions — light layers at start, comfortable by finish
0.2"
Precipitation
14 mph
Wind
66%
Humidity
Historical Finish Times
How 21,052 finishers actually crossed the line across 19 years.
Most recent
2026
Total finishers
21,052
Median time
2:11:41
Latest turnout
1,410
States
49
Turnout by year
2018–2026
Hover the histogram to inspect specific finish times.
Race Photos
Frequently asked
When is the Garmin Olathe Marathon, Half Marathon and 10K in the land of Oz?
The Garmin Olathe Marathon, Half Marathon and 10K in the land of Oz is held on Saturday, April 25, 2026, starting at 6:45 AM.
Where does the Garmin Olathe Marathon, Half Marathon and 10K in the land of Oz take place?
It takes place in Olathe, Kansas.
What distances does the Garmin Olathe Marathon, Half Marathon and 10K in the land of Oz offer?
The half marathon (13.1 miles), plus 26.2 Miles, 6.2 Miles, 1.2 Miles.
Is the Garmin Olathe Marathon, Half Marathon and 10K in the land of Oz course flat and good for a PR?
The Garmin Olathe Marathon, Half Marathon and 10K in the land of Oz is a ultra-flat, loop course course. The course is USATF-certified, so finish times can be used for qualifying.
How many people run the Garmin Olathe Marathon, Half Marathon and 10K in the land of Oz?
HalfRuns has finish records for 21,052 runners who have completed the Garmin Olathe Marathon, Half Marathon and 10K in the land of Oz.
HalfRuns editorial — independent, no paid placement.
Explore More Journeys
Can't make it to Olathe? Discover other experiences that match your running style.
Search All Races
