CORE Indoor Sprint Triathlon

MAR

14

2026

Take on a fast paced indoor sprint triathlon in Lemont with a 10 minute swim, 15 minute bike and 15 minute run, all timed and stacked into 20 minute heats. Perfect for newcomers and seasoned athletes seeking a compact high energy challenge.

Sat 14 Mar 2026

Lemont, Illinois

Registration

Swim Run Bike

Always double-check with the organizer's website! This page may contain affiliate links.

CORE Indoor Sprint Triathlon : event overview

The CORE Indoor Sprint Triathlon takes place on March 14, 2026 in Lemont, IL (16050 127th St., 60439). The event is indoor and measures each athlete’s total distance at the conclusion of the session. The format consists of three timed segments:

10 minutes swim
15 minutes bike (Keiser spin bike)
15 minutes run (Precor treadmill)

Heats are run in 20-minute increments with groups of four to five athletes. Heat assignments will be emailed to participants on March 12. Participants are asked to arrive 30 minutes before their assigned heat for check in. Participants receive an event t-shirt at check in.

Registration, logistics and awards

Price for the event is $40. Registration closes on March 11 or when the event capacity of 60 is reached; there is no race-day registration. Ordering by February 24 guarantees an event shirt. The event is open to ages 14 to 100.

Participants are advised to bring a swimsuit, towel, a lock for belongings, athletic shoes for the bike and run, and personal fluids or energy products. An awards ceremony is held after the final heat; awards are given to overall event winners and to first and second place male and female finishers in each age division. Parking is available on the Lemont Park District campus and adjacent Old Quarry Middle School; parking may be affected by concurrent basketball events. Visit the organization's website for the most recent information.

Run

Swim

Bike