Rick O'Donnell Memorial Ultra Challenge

OCT
11
2026
Experience a unique trail event at Milkhouse Brewery in Mount Airy featuring a 5 mile race and timed ultra challenges. Complete as many loops as possible over four or eight hours on this scenic farm course.
Sun 11 Oct 2026
5 miles

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Event Overview

The Rick O'Donnell Memorial Ultra Challenge is an annual trail running event held at Milkhouse Brewery at Stillpoint Farm in Mount Airy, Maryland. This event has been held since 2013 and honors members of the local running community. The races take place on a trail course where participants can choose between a fixed-distance race or timed challenges.

Available Distances

Participants may select from the following event options:

  • 5 Mile Trail Run
  • 4-Hour Challenge
  • 8-Hour Ultra Challenge

Course and Format

The event consists of a loop-based format for the timed challenges. In both the 4-Hour Challenge and the 8-Hour Ultra Challenge, runners aim to complete as many loops as possible within their selected time limit. Participants may choose to run as many or as few loops as they prefer during the allotted timeframe. The single-distance 5 Mile Trail Run offers a traditional trail race format on the farm property. The registration period for these events begins in early March and concludes in late July. Visit the organization's website for the most recent information.

5 mi
5 Mile Trail Run
4-Hour Challenge
8-Hour Ultra Challenge

Events nearby

A 7K trail race at The Woodstock Equestrian Center in Dickerson, Maryland, presented as part of MCRRC's low key series for members. Non member registration has a $20 fee and runs from February 10, 2026 to August 16, 2026.
An in-person event on September 26, 2026 in Brunswick, MD featuring a trail-based 5K and timed 3-hour and 6-hour challenges on a 5 mile loop. Proceeds support Brunswick High School Track and Field equipment.
Run On The Rocks in Point Of Rocks, MD on September 26, 2026 features 10 mile, half marathon and 20 mile events. The race is chip timed and includes participant shirts, finisher medals and age group awards.
A community charity race in Gaithersburg on October 3, 2026, featuring cross-country 10K and 5K, a paved 1-mile accessible fun run, and a kids Trike-A-Thon. Proceeds support Comfort Cases and Covenant Life School and include a post-race backpack-pack..
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