Collin Thirlby Confirmed for Inaugural Horsepower Happenings All-Star Invitational

Jonesville, MI - On Saturday, November 14th, 20 of the most talented race car drivers from across the region will convene in Clio, Michigan for the Inaugural Horsepower Happenings All-Star Invitational Presented by Extreme Indoor Kart Racing and Entertainment Center. The race brings some of the best drivers from different disciplines across the region to race against each other for a chance at cash prizes.

IMCA Modified/B-Mod standout, Collin Thirlby is on the Entry List for the Inaugural All-Star Invitational. The Traverse City, Michigan, native raced in 18 features this season, converting 12 of those starts into top-five finishes alongside five wins. In 2025, Thirlby held a stat line that included 16 trips to victory lane, with 26 top-fives in 28 starts. All 28 starts were top-10 finishes. He also bagged the biggest win of his career with the 2025 WoodTic at Merritt Speedway

His success isn't limited to just the cars he drives. Thirlby is the main man behind Diamond Race Cars by CTR, one of the leading IMCA and B-Mod chassis manufacturers in the state of Michigan.

10 other Horsepower Happenings All-Star Invitational drivers have already been announced, including David McManus, Travis Stemler, Chase Burda, Steve Irwin, Bryce Bozell, Max Stambaugh, Mason Metzger, Kyle Crump, Matthew Elsey, Jr., Aaron Taylor, and Matt Kemp. In addition to the 20 All-Star drivers from around the region, five "ringers" will be a part of the show. The two fastest drivers from the month of September (Wade Gray & Owen Quinnen) and the three fastest drivers from the month of October at Extreme Indoor Karting will get an invitation to try to join the field.

The event is open to the public to attend and enjoy the races. Fans who can't make the trip can watch the action LIVE on www.GreatLakesSprints.TV.