Oberlin Monster Mash Dash 5k Fun Run ( )
About this race
Join us by the flags in Tappan Square in Oberlin on Saturday October 31 (HALLOWEEN!) at 1pm for the 6th Annual Oberlin Monster Mash Dash 5k Fun Run!
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.
*Best Costume Prizes (you must be a race participant to be eligible for a prize)
1st Place Overall
2nd Place Overall
3rd Place Overall
1st Place Kids (Under 13)
2nd Place Kids (Under 13)
3rd Place Kids (Under 13)
Best Family Costume
And, join us at Black River (15 S. Main St.) after the run for a Halloween afterparty!
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.
Pick your distance
Running
Oberlin Monster Mash Dash 5k Fun Run (2026)
This fun run is FREE!
Race-day daylight
We have no recorded weather for Oberlin yet, but sunrise and sunset follow from the venue and the date.
The sun rises at 7:59 AM and sets at 6:25 PM local time (EDT) in Oberlin on October 31, 2026 — 10h 26m of daylight.
Course
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
Reviews
Done this event?
If you've participated in this event, share your experience with other runners
🏃 Plan Your Next Race in Oberlin
Find upcoming events by distance:
- Oberlin 5K Races 2 races
- Oberlin Running Calendar 2026 3 races
Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 3 Oberlin events
Spotted something wrong? Tell us and we'll fix it.