CORE Indoor Sprint Triathlon
Lemont, IL
Sun, Mar 7, 2027
In 140 days · Sun, Mar 7, 2027
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Sunday, March 7th, 2027
16050 127th St., Lemont IL
See race page
29–47°F · some rain risk
See last 10 years
On this date: rain 4 of the last 10 years
2026
38–63°F
rain
2025
31–35°F
rain
2024
34–52°F
dry
2023
33–44°F
dry
2022
21–35°F
rain
2021
23–51°F
dry
2020
22–49°F
dry
2019
16–30°F
dry
2018
24–32°F
dry
2017
43–64°F
rain
Best months to race in Illinois →
Race-day forecast says layers
29°F at the start.
Gloves, ear warmers, throwaway layers, hand warmers — delivered before race day.
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.
Course map
Train with a club
Run clubs near Lemont to train with before race day.
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