2026 Altitude Elementary Moose Mudder

Please join us for the Annual Moose Mudder! This is a community event that will consist of an untimed 1k fun walk/run and a timed 5k followed by an optional muddy obstacle course. Get your best time, run for fun, walk with a group, form a stroller brigade, or line the streets to cheer everyone on--Come one, come all as we gather and play as a community on Sunday, May 4th!  This event is a rain or shine event.  All efforts will be made to put the race on, but if weather does cause a cancellation, there are no refunds.   T-Shirt and Antlers are Guaranteed to the first 300 signups! Must be present on race day to receive the T-Shirt and Antlers.  

Join fellow runners on May 3, 2026 for the 2026 Altitude Elementary Moose Mudder. It's a fantastic 1K, 5K featuring a flat and fast course in Aurora.