
CORE Indoor Sprint Triathlon is a triathlon race on March 7, 2027 in Lemont, IL, with an entry fee of $45.
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.
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
45°
Typical Low
27°
Chance of Rain
35%
Based on US Climate Normals data from Romeoville Wfo, 5 mi from the venue.
City Elevation
717 ft
Nearest Airport
MDW
Chicago Midway International Airport · 13 mi
Time Zone
Central Time
From Endurance Grid
Line up lodging and travel early to lock in your race weekend.
Every finish line starts with a single decision. Claim your spot at CORE Indoor Sprint Triathlon, put it on the calendar, and turn “someday” into a start date.
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Days to train
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Endurance Grid is here to help you understand the sport, decide if it’s the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.
Three sports, one race — swim, bike, run in sequence, with transitions that are a discipline of their own.
Open water, open roads, and competition with yourself. Cross the finish line knowing what it took to get there.
Swim, bike, run — back to back. The sprint distance makes it far more accessible than most people think. Three sports in one race means three movements to train and race day never gets monotonous.
CORE Indoor Sprint Triathlon
Mar 7, 2027