- This event has passed.
Join us for a full marathon, half marathon, 10k or kids run through the beautiful streets and trails of Olathe. This year marks the 15th anniversary of the event, which began in 2003 as the Olathe Marathon. 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.