Core Indoor Sprint Triathlon
About this race
Brief Description
During the CORE Indoor Sprint Triathlon athletes will swim for 10 minutes, Bike for 15 Minutes (Keiser Spin Bike), and Run for 15 minutes (Precor Treadmill). Total distance traveled for each athlete will be measured at the conclusion of the event. The first heat will begin at 8:00 am and continue in 20 minute increments
Registration
Registration closes for this event on Tuesday, March 2nd or when the event capacity of 60 is reached. THERE WILL BE NO RACE DAY REGISTRATION FOR THIS EVENT. REGISTER BY FEBURARY 22 TO BE GUARANTEED A SHIRT.
Heat Times
Heat times will be assigned and emailed to triathletes on Wednesday, March 3rd. Heats of 4 to 5 people will begin at 8:00am continue every 20 minutes. Please arrive 30 minutes prior to your assigned heat time for check in.
Packet Pick Up
Participants will receive an event t-shirt when they check in for the event. Please check in 30 minutes prior to your assigned heat time
What to Bring
Swimsuit, towel, Lock and appropriate attire including athletic shoes for the bike and run, and a water bottle and any sports drinks or energy gels you need for the event. Please bring a lock to lock up any belongings. The CORE is not responsible for any lost or stolen items.
Awards
Join us for the awards ceremony following the finish of the last heat (Approximately 30 minutes). Awards will be given to the overall CORE Indoor Triathlon event winners, and to the 1st and 2nd place male and female finishers in each age division.
Parking
Parking is available at the on the Lemont Park District campus outside of the CORE Fitness and Aquatic Complex. 16050 127th St. Lemont, IL 60439.
Pick your distance
Triathlon
CORE Indoor Sprint Triathlon
Typical race-day weather
Based on 5 years of Open-Meteo archive data for this event's race dates in Lemont, plus the 3 days either side.
The sun rises at 6:16 AM and sets at 5:49 PM local time (CST) in Lemont on March 7, 2027 — 11h 32m 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.
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Haunted Oak 5K
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, 8 Lemont events
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