Entry Fees & Registration Information:

Mighty Max Combo
Get your kiddos involved in a real summer adventure by signing them up for the Kid's Power Pack. Register for Mighty Max Youth Triathlon AND Epic Mud Run Jr. for only $55 (a savings of $15).

**The entry fees listed do not include any credit card or online processing fees.

Important Ultramax T-Shirt Policy: In order to keep our late fees lower and due to supply levels and printing constraints you must register on or before 7/25 to be guaranteed to receive your shirt at packet pickup. If you register after 7/25 you may not recieve a shirt when you pick up your packet.

Compare our early entry fee to other mud runs:
(Hint: EPIC is cheaper, and did we mention better shirts, better finisher items, more mud, free beer, $5 parking, no spectator fees...the list goes on and on!)
• Warrior Dash = $65+
• Spartan Race = $115+
• Muddy Buddy Run = $75+
• Savage Race = $85+
• Rugged Maniac Mud Run = $78+
• EPIC MUD RUN = ONLY $50 If you register early!

Manual Registration:

Download and print out the Halfmax Championship registration form below. Fill out the form and either mail to or drop off at our Columbia retail location (7430 W. Hwy. 40, Columbia, MO 65202).


Earn Active Rewards! It's easy - register for a race at one of our three store locations (Columbia, Springfield, or Kansas City) and you'll earn Active Rewards. For every $250 you spend, you'll earn $30 that can be applied to anything in the store, even clearance or specially-priced items. The program is 100% free amd the rewards are unlimited. For more information about our Active Rewards Program, visit our retail store page.