YMCA Halloween Freaky 5K and Monster Mile
About this race
YMCA Halloween Run presented by Micron
Ready, Set, Glow! Trick Out Your Costume and Treat Yourself To A Fun Run!
Choose from either the Monster Mile or Freaky 5k
Courses start and finish in Ann Morison Park
Wear your costumes, neon, or fluorescent clothing, glowsticks, lights, and more...have fun and be creative!
We'll have a pre-race costume contest with prizes for the winners!
Pick your distance
Running
Freaky 5K
Trick out your costume and treat yourself to a fun run!
Monster Mile
Trick out your costume and treat yourself to a fun run!
Typical race-day weather
Based on 5 years of historical conditions on this event's race dates in Boise.
Course
Route map and elevation profile
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
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Other races near Boise
Different organizers, within 40 miles, in the next three months
SueB 5k
Idaho Running Day
WIINing Warriors Flock Walk
Boise Half Marathon
🏃 Plan Your Next Race in Boise
Find upcoming events by distance:
- Boise 5K Races 27 races
- 10K Run Events in Boise 14 races
- Boise Half Marathons 11 races
- Marathons in Boise 6 races
- Boise Running Calendar 2026 41 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, 48 Boise events
Spotted something wrong? Tell us and we'll fix it.