Coach Mike O'Brien Memorial St. Patrick's Day Run 5K

The Coach Mike O'Brien Memorial St. Patrick's Day Run is a 5K race held annually at Morris Catholic High School in Denville, New Jersey. The event honors the late Coach Mike O'Brien, a beloved cross-country and track coach who founded the original race in 2012.

The course is USATF-certified, welcoming runners of all levels aged 5 and up, with medals awarded across multiple age groups. Proceeds support Morris Catholic High School’s scholarships and athletic programs, as well as the Denville Public Assistance Fund. The race fosters a community atmosphere, encouraging both seasoned and novice runners to participate rain or shine. Visit the organization's website for the most recent information.