Garmin Olathe Marathon, Half Marathon and 10K in the land of Oz
About this race
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!
Pick your distance
Running
Marathon
Half Marathon
10K
Munchkin Run
Families are able to train together for this event! Kindergarten through 8th grade participants will track 25 miles on their very own Munchkin Marathon tracking sheet. On race day families will start right after the marathon, half marathon and 10K races, and run on the same course as the adults the final 1.2 mile. Parents, family or guardians can register for $25 and run for with the registered child, too!
Typical race-day weather
Based on 5 years of Open-Meteo archive data for this event's race dates in Olathe, plus the 3 days either side.
The sun rises at 6:30 AM and sets at 8:04 PM local time (CDT) in Olathe on April 24, 2027 — 13h 34m of daylight.
Course
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
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Results — Garmin Olathe Marathon, Half Marathon and 10K in the land of Oz
Other races near Olathe
Different organizers, within 40 miles, in the next three months
HAPPY FEET RUN/WALK 5K
KCinfertility Pathway to Parenthood 5k
Jared Coones Memorial Pumpkin Run/Walk 5K
Run for Paws 5K - Benefiting the Lantz Tucker Memorial Fund
🏃 Plan Your Next Race in Olathe
Find upcoming events by distance:
- Olathe 5K Races 20 races
- 10K Run Events in Olathe 4 races
- Olathe Half Marathons 2 races
- Olathe Running Calendar 2026 24 races
Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 27 Olathe events
Spotted something wrong? Tell us and we'll fix it.