2027 Garmin Olathe Marathon, Half Marathon and 10K in the land of Oz
The Garmin Olathe Marathon: flat, certified Kansas streets, a finish-line festival, and two decades of Midwest charm.
Race Date
Apr 24, 2027
Location
Olathe, KS
Quick facts
- Date
- Saturday, April 24, 2027
- Location
- Olathe, Kansas
- Distance
- Half marathon (13.1 mi)
- Course
- Loop Course
- Terrain
- Road
- USATF certified
- Not listed
Highlights
Good For
Atmosphere
Course
The Experience
Olathe sits in Johnson County, Kansas, about 20 minutes southwest of downtown Kansas City, and each spring its streets fill for the Garmin Olathe Marathon, Half Marathon and 10K — an event first run in 2003 and now hosted at Garmin's world headquarters. The theme is the Land of Oz; the mood is straightforward Midwest charm.
The half is a USATF-certified road course with essentially no net elevation change, which makes it a genuine PR proposition rather than a sightseeing tour. Recent editions have drawn around 2,800 finishers, with runners traveling from roughly 39 states and a winning time near 74 minutes — quick at the front, but built just as much for the middle and back of the pack. Race-morning weather typically lands between 48 and 67°F with a steady Kansas breeze.
The weekend leans on its community: packet pickup and an expo, then a finish-line festival where marathoners, 10K runners and the Munchkin Marathon field all end up in the same place. About a fifth of runners come back in later years — for a race this size, that's real loyalty.
Race-provided description
The Garmin Olathe Marathon is a running event in Olathe, Kansas, offering marathon, half marathon, 10K, and Munchkin Marathon distances. It is organized by the Olathe Chamber of Commerce and features a finish line festival, expo and packet pickup, and course maps. The event takes place in 'the land of Oz' theme.
Logistics
Race Day
Saturday, April 24, 2027
Start Time
TBA
Start Location
Garmin International, Inc., Olathe, KS, 66062
Course Info
Course Type
Loop Course
Terrain
road
Difficulty
Ultra-Flat
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 68°F
Race Day Weather
5-year historical avgStart (Low)
48°
Afternoon (High)
67°
Pleasant conditions — light layers at start, comfortable by finish
0.1"
Precipitation
14 mph
Wind
63%
Humidity
Frequently asked
When is the 2027 Garmin Olathe Marathon, Half Marathon and 10K in the land of Oz?
The 2027 Garmin Olathe Marathon, Half Marathon and 10K in the land of Oz is held on Saturday, April 24, 2027.
Where does the 2027 Garmin Olathe Marathon, Half Marathon and 10K in the land of Oz take place?
It takes place in Olathe, Kansas.
What distances does the 2027 Garmin Olathe Marathon, Half Marathon and 10K in the land of Oz offer?
The half marathon (13.1 miles).
Is the 2027 Garmin Olathe Marathon, Half Marathon and 10K in the land of Oz course flat and good for a PR?
The 2027 Garmin Olathe Marathon, Half Marathon and 10K in the land of Oz is a ultra-flat, loop course course.
HalfRuns editorial — independent, no paid placement.
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