
Olathe, United States of America · Saturday 25 April 2026
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!
Adjusted Time
1:40:47
Time difference: -4.2 minutes compared to a flat, road, temperate course.
Garmin Olathe Marathon, Half Marathon and 10K in the land of Oz is a half marathon held in Olathe, United States of America, scheduled for Saturday 25 April 2026. The course is run on road surface with 0m of total elevation gain, reaching a maximum altitude of 0m above sea level. For registration and full race details, visit the official Garmin Olathe Marathon, Half Marathon and 10K in the land of Oz website.
This is a very flat course with only 0m of total elevation gain across the full distance. The course ranges from 0m to 0m above sea level — a 0m elevation range that makes it one of the flatter races available. Runners targeting a personal best will appreciate the minimal climbing.
Garmin Olathe Marathon, Half Marathon and 10K in the land of Oz is run on road surfaces, which provide the fastest and most predictable conditions for marathon running. Road courses allow for consistent pacing and are typically the best choice for runners targeting a personal best time.
Our difficulty rating for Garmin Olathe Marathon, Half Marathon and 10K in the land of Oz is calculated using a model that combines elevation gain, temperature impact, and surface type. Use the difficulty calculator above to enter your target finish time and see exactly how many minutes this course would add or subtract compared to a perfectly flat, cool, road-based half marathon. Faster runners and slower runners are affected differently by the same course conditions, so the difficulty is personalised to your pace.
Looking for an easier marathon or a tougher challenge? You can also compare Garmin Olathe Marathon, Half Marathon and 10K in the land of Oz against other half marathons to find the right race for your goals.
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