Corner of College St. & Main St. in Tappan Square, Oberlin OH
Sunday, October 26th, 2025
👻 Event Overview
The Oberlin Monster Mash Dash is an un-timed and unsupported 3.1-mile fun run weaving throughout Oberlin beginning and ending in Tappan Square at the corner of Main and College. Wear your most creative, fabulous, or awkward Halloween costume! The best costumes win special prizes.
🎉 Costume Contest
- Best Costume Prizes: (you must be a race participant to be eligible for a prize)
- 1st Place Overall: $100
- 2nd Place Overall: $75
- 3rd Place Overall: $50
- 1st Place Kids (Under 13): $50
- 2nd Place Kids (Under 13): $25
- 3rd Place Kids (Under 13): $25
- Best Family Costume: $50
🎊 Afterparty
And, join us at Black River (15 S. Main St.) after the run for a Halloween afterparty!
🚶♂️ Participation Options
Don't really like running? That is ok. You can walk, skate, bike, or just hang out at the finish line and cheer us on. Reminder! Do not wear a racist Halloween costume. You will be immediately disqualified. Here is some guidance.
📅 Event Details
- Date: 2025-10-26
- Location: Corner of College St. & Main St., Tappan Square, Oberlin, OH
- Distance: 3.1 miles
- Registration: Register here
Course Map
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