Logo

Midwest Endurance Ultrapalooza

Osawatomie, United States • 27-28 Sep 2025

Ultrapalooza is a ultramarathon held in Osawatomie, Kansas, on the Flint Hills Trail. The event, part of the Kansas Super Slam, offers distances from 5K and 10K up to 50K, 50M, 100K, and 100M, plus a marathon distance. Runners begin and finish at Mile 0 Flint Hills Trailhead, with a flat, crushed-gravel, mostly out-and-back course along prairie, rail-bed towpath sections near the Marais Des Cygnes River. Aid stations are well stocked and spaced about four miles apart. The weekend features swag, distance-specific hardware, lights, music, a finish-line atmosphere with cowbells and a food truck, and a photographer capturing the spirit. Visit the organization's website for the most recent information.

United States Kansas Osawatomie

Race information

Registration Facebook
100 mi
100 Miler
100 km
100k
50 mi
50 Miler
50 km
50k
42 km
Marathon
21 km
1/2 Marathon
10 km
10k
5 km
Visit the organization's website for the most recent information.
Trail runs nearby

The Unbridled 50 Mile

Hillsdale - 12 mi from Osawatomie

Located in Hillsdale, Kansas, The Unbridled 50 Mile offers 50 Mile, 50K, and 10 Mile options on a demanding 10-mile loop. The self-supported race unfolds on a mix of technical single-track horse trails (about 90%), with 10% pavement or gravel and a few hills. Start/Finish is at the Army Corp of Engi..

Maple Leaf Run

Baldwin City - 23 mi from Osawatomie

The Maple Leaf Run is an annual October race in Baldwin City, Kansas, held in conjunction with the Maple Leaf Festival. The event offers a 5K and a 1-Mile Kids Run, attracting runners of all ages. The course is an all-grass route on the Baldwin City Golf Course, providing a scenic, park-like setting..

Kansas Rails-To-Trails Extravaganza

Ottawa - 19 mi from Osawatomie

...

The Kansas Rails-to-Trails Extravaganza, held at Celebration Hall in Ottawa, Kansas, is a multi-distance ultrarun on the Prairie Spirit Trail. Distances include 100 Mile, 100K, 50 Mile, 50K, Marathon, Half Marathon, and a 5-Miler, with routes weaving north-south along a crushed limestone trail throu..

Miola Madness - Fall Edition

Paola - 6 mi from Osawatomie

...

Miola Madness - Fall Edition, the third event in the Miola Madness Series, takes place in Paola, Kansas, near Miola Lake. The course is a roughly six-mile crushed limestone loop around the lake, with formats including 12-hour, 9-hour, 6-hour, 3-hour, and a new 10K distance. New 10K distance records..