Ultrapalooza

Event Overview

Ultrapalooza is part of the Kansas Super Slam of Ultrarunning Series, featuring multiple distance options including a 100 Miler, 100K, 50 Miler, 50K, Half Marathon, 10K, and 5K.

Event Details

• Date: September 27 - 28, 2025
• Location: 1400 South Street, Osawatomie, KS
• Registration Closes: September 27 @ 11:59 PM CT

Course Description

The race will be hosted on the Flint Hills Trail, known for its flat, fast, crushed gravel surface. This scenic route traverses the beautiful Flint Hills, a rare tallgrass prairie ecosystem.

Awards & Features

• Custom race shirts for all participants who register by September 5th.
• Abundantly stocked aid stations and Hammer swag bags.
• Unique awards for top finishers in all distances.

Schedule of Events

• Friday, September 27: 4:00 PM - 7:00 PM Packet Pickup
• Saturday, September 28:
  • 5:00 AM - 5:45 AM: 100 Mile/100K/50 Mile Packet Pickup
  • 6:00 AM: Race Start for 100 Mile/100K/50 Mile
  • 6:30 AM: Race Start for 50K
  • 7:00 AM: Race Start for Half Marathon
  • 8:00 AM: Race Start for 10K
  • 8:10 AM: Race Start for 5K

Registration Fees

• 100 Miler: $222.03
• 100K: $199.03
• 50 Miler: $176.03
• 50K: $105.77
• 1/2 Marathon: $59.87
• 10K: $48.40
• 5K: $42.66

Refund Policy

No refunds will be issued; however, runners may defer their race entries to the following year with prior notice.