Haunted Half Marathon and 5k by Run the Undergrad

Get ready for a spine-tingling race experience at Porter Park in Rexburg on October 24, 2026, where the Haunted Half Marathon & 5K transforms this beloved community gathering place into a chilling Halloween adventure. Runners will wind through the park’s tree-lined paths and open green spaces—normally known for recreation and events—now filled with eerie decorations, costumed volunteers, and surprise frights around every corner. With a festive, family-friendly atmosphere by day and a spooky, adrenaline-pumping vibe by dusk, this race invites participants of all levels to dress up, push their limits, and celebrate the season with a hauntingly unforgettable run.