"Building drivers from the ground up'
That Welcomes Our Future Generation To the Arena
And In the Action!
BORN IN THE MUD.
BUILT FOR THE SHOW.
Extreme Derby Promotions preserves the heart-pounding tradition of demolition derbies. We bring the smoke, the steel, and the roar of the engines to county fairs across the region. Review our schedules, master our class rules, and prepare for the ultimate clash of metal.
Providing Classes
upcoming events
Upcoming Events
CASS COUNTY CARNAGESat, May 23Cass County Fairgrounds
Schuyler County Demolition DerbySat, Jul 04Schuyler County Fairgrounds
Marshal/Putman County FairFri, Jul 17Marshall-Putnam Fairgrounds
Livingston County Agricultural FairSat, Jul 1818142 4h Park Rd
SAFETY, TRADITION & INTENSITY
We maintain a professional, family-friendly environment with a strong commitment to safety, sportsmanship, and spectator excitement. From the thunder of engines in the mud to the historic atmosphere of the county fair, every event honors the heritage of demolition motorsports while delivering edge-of-your-seat entertainment for Illinois.
PRESERVING THE POWER OF TRADITION
Extreme Derby Promotions, LLC is based in Knox County right on main street in Maquon,IL. We are dedicated to delivering high-impact motorsports entertainment while preserving the tradition of small-town county fair competition. Major focus on SAFETY, organization, fair car inspections, and family-friendly excitement, we bring together skilled drivers, roaring engines, and enthusiastic crowds for unforgettable grandstand entertainment. Proud to support our local communities across Illinois, we combine professional event management with the grit and heritage that make demolition derby a true American classic.
Unless you’ve been hiding under a rock—or you’re completely new to the demolition derby scene in Illinois—you may already know the names behind the action. On the left is Kellie Mahnesmith, the true brains of the operation, and on the right is Robert “Robbo” Mahnesmith, the driving force behind the roar. With more than 25 years involved in the sport and over a decade of promoting events, they’ve built and forged a business dedicated to keeping this hard-hitting, family tradition alive for generations to come.
WHERE TO FIND US
Extreme Derby Promotions proudly serves motorsports enthusiasts across Illinois. Our primary county service areas include Knox, Livingston, Stephenson, Schuyler, Marshall, Putnam, Ogle, McLean, Logan, Carroll, Boone, Whiteside, Bureau, Lee, and DeKalb.
Looking to add something unique and crowd-pleasing to your fair, speedway, or community event? Extreme Derby Promotions delivers exciting, family-focused Derby action that keeps fans entertained and participants coming back year after year. Our team brings professionalism, safety standards, and a proven event format that fits perfectly into fairs, festivals, and race programs. Let us help you create an unforgettable experience that draws families, boosts attendance, and adds high-energy fun to your schedule. Contact us today to start planning your event