Chicago Triathlon

Join the 100 Club of Illinois at the 2025 Chicago Triathlon on Sunday, August 24! If you’re a first responder, consider competing in the 100 Club Challenge.

The 100 Club Challenge is a special competition during the Chicago Triathlon weekend and is the ultimate test of mettle between two teams: police vs. fire! Originally known as the First Responders’ Competition, the program began in 2007 as a friendly wager among seven members of the Chicago Police Department and the Chicago Office of the FBI. Since then, the competition has hosted more than 1,000 participants from more than 24 agencies across the country.

All first responders across the state of Illinois are encouraged to participate. Register on the Chicago Triathlon’s website.

Questions? Contact Katelyn at KPotempa@100ClubIL.org.