Indoor Insanity 5k
About this race
Join us on Sunday, January 10, 2027 for a race event unlike any other in Maine. Get out of the cold and head indoors: no ice underfoot, no frigid gusts in your face, and no snow overhead! Who knew running in circles was so much fun? Music, comaraderie, and running! Walkers welcome.
Indoor Insanity 5K is a fundraiser to prevent lung cancer. Your race fees help pay for installation of radon mitigation systems in low-income Maine households.
To minimize injury and "traffic jams", runners pick their preferred heat based on their average personal running speed.
Heat # 1 - for the fastest runners (15-20 minutes 5k) Field will be limited to 30 runners. First come, first served sign ups
Heat #2 - for the intermediate runners (20-27 minute 5k) Field will be limited to 75 runners. First come, first served sign ups
Heat #3 - for runners of any level willing to take on the chaos of Indoor Insanity.
Walkers: we have two dedicated lanes for walkers. Walkers start with Heat #1 Runners
Kids Fun Run, too!
The race is professionally chip-timed for accurate individual lap and finish times.
Race fees are for race only. The deadline to purchase race shirts if you want one is December 22, 2025. We will have limited quantities available for purchase on the day of the event. First-come, first-served.
Please consider fundraising to help us mitigate more homes.
Pick your distance
Running
Heat 1 5k Runners 15-20 Minutes
Race Day Registration (walk-ins welcome) opens at 7:15 a.m.; Heat # 1 (<20 minute 5k runners) starts at 8:00 a.m.. (Walkers start at this time too. )
Heat #2 5K Runners 20-27 minutes
Race Day Registration (walk-ins welcome) opens at 7:15 a.m.; Heat #2 (20-27 minute 5K runners) starts at 8:40 or immediately following the Kids Fun Run.
Heat #3 5K Runners 27 minutes and above
Online registration available through 5:00 p.m. on January 9, 2026. Race-Day Registration (walk-ins welcome) opens at 7:15 a.m.; Heat #3 (for runners of all levels) starts at 9:20 or as soon as possible after the end of heat #2.
Kids Fun Run
Kids fun run is 2 laps (.25 miles). Kids' fun run participants receive free race shirt and a medal. Kids' fun run only participants are not eligible for door prizes.
Fundraiser Not Running or Walking
Not running or walking but want to support Indoor Insanity through a fundraising page to send to family, friends and colleagues
Walking
Walkers in a Separate Lane
Race Day Registration (walk-ins welcome) opens at 7:15 a.m. Walkers start with Heat #1 runners at 8:00 a.m. We have two dedicated lanes just for walkers.
Typical race-day weather
Based on 11 years of Open-Meteo archive data for this event's race dates in Waterville, plus the 3 days either side.
The sun rises at 7:13 AM and sets at 4:18 PM local time (EST) in Waterville on January 10, 2027 — 9h 04m 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
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Results — Indoor Insanity 5k
Other races near Waterville
Different organizers, within 40 miles, in the next three months
Central Maine Striders Fall Classic 10K
Waterville Marathon - Full/Half/10K/5K - Running Festival
Peace Ridge Sanctuary’s 5k Run for the Animals & 1 Mile Fun Walk
Flutie 5K for Autism: Rome, ME
🏃 Plan Your Next Race in Waterville
Find upcoming events by distance:
- Waterville 5K Races 2 races
- 10K Run Events in Waterville 2 races
- Waterville 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 Waterville events
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