Chelsea Boo Run and 5K
About this race
Please join the Chelsea High School Cross Country and Track and Field teams for a morning of Halloween Fun on Saturday, October 31st at Chelsea High School. The 5k will start at 8am and will be followed with a 1k Fun Run for kids grades 5 and under. We encourage you to wear your Halloween costume and join us for a trunk or treat in the parking lot afterwards. This race is a service project to grow running in the Chelsea Community, and we would love your support!
Pick your distance
Running
Chelsea Fun Run (1K fun run for kids Grade 5 and below)
The 1K Fun Run is a FREE event for all kids ages 11 and under (grade 5 and below) if registered before 10/14/2026. Registrations after that will be $10 Costumes are highly encouraged
Chelsea Boo Run 5K
Early registration (before 10/14/2026) is $25. Registration after that and day of will be $30. Costumes are highly encouraged.
Race-day daylight
We have no recorded weather for Chelsea yet, but sunrise and sunset follow from the venue and the date.
The sun rises at 7:04 AM and sets at 5:55 PM local time (CDT) in Chelsea on October 31, 2026 — 10h 51m 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 Chelsea
Find upcoming events by distance:
- Chelsea 5K Races 3 races
- Chelsea 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 Chelsea events
Spotted something wrong? Tell us and we'll fix it.