The Big 550 KTRS Radiothon

Why Your Support Matters

Each summer, our partners at The Big 550 KTRS dedicate a full day of broadcasting to the St. Louis Men's Group Against Cancer. On Thursday, August 20, we take over the air from 6:00 a.m. to 6:00 p.m. Hosts share stories, take calls, and invite listeners to give throughout the day, alongside interviews and auction packages.

Here is what your gift does. STLMGAC raises the money. St. Louis organizations put it to work. Funds are awarded as grants to local organizations working in cancer research, prevention, and patient care, right here in our community.

How to Listen

Tune in on 550 AM, stream at KTRS.com, or download the free KTRS app on Google Play or Apple. Listen from anywhere and give from anywhere.

Radiothon Raffle

This year's KTRS Radiothon raffle grand prize sends one winner and a guest to the 111th running of the Indy 500. The package includes two Start/Finish Line tickets to the race on Sunday, May 30, 2027, at Indianapolis Motor Speedway, plus two nights at a local hotel.

Raffle tickets go on sale Monday, August 10. Check back here or tune in on August 20 to purchase.

$100 Raffle Ticket: One chance to win the Indy 500 Grand Prize, plus four tickets to the Cardinals on Tuesday, September 15.
$200 Raffle Ticket: Two chances to win the Indy 500 Grand Prize, plus four tickets to the Cardinals on Tuesday, September 15, two preseason Blues tickets, and two St. Louis CITY2 tickets.

Radiothon Auction Items

Auction items will be announced throughout the day, on August 20!