2025 Garmin Olathe Marathon

The 2025 Garmin Olathe Marathon has the mission to support the Olathe community and showcase the beautiful streets and trails it has to offer. In addition, a portion of the race proceeds will be donated to local charities.

More than 500 volunteers are needed for this event on April 26, 2025. Volunteers are primarily needed as course monitors, aid/water stations, at the finish line and more. Shifts range from 5:30 a.m. to 2 p.m. All ages are welcome to volunteer, but children 15 or younger need parental guidance.