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!
Join fellow runners on April 25, 2026 for the Garmin Olathe Marathon, Half Marathon and 10K in the land of Oz. It's a fantastic Marathon, Half-Marathon, 10K, 1.9K featuring a flat and fast course in Olathe.
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!
Weather Overview
These values reflect historical conditions on the race dates in Olathe in 2026, from Open-Meteo archive data.
About Olathe
Garmin Olathe Marathon, Half Marathon and 10K in the land of Oz takes place in Olathe, Kansas, United States. The local timezone is America/Chicago.
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🏃 Plan Your Next Race in Olathe
Find upcoming events by distance:
- Olathe 5K Races Best Olathe routes for beginners and speed work.
- 10K Run Events in Olathe The most popular local distance in Kansas.
- Olathe Half Marathons Top-rated 21.1K courses in the Olathe area.
- Marathons in Olathe Scenic 42.2K routes and Olathe Boston qualifiers.
- Olathe Running Calendar 2026 See all upcoming race dates.
Race information has been sourced from the event's official website and other publicly available resources. For the most up-to-date details, please refer to the official website directly. If you notice any incorrect or missing information, don't hesitate to reach out to us by email.