2025 Tire Rules

The Hoosier D800 is approved for asphalt events.
The Hoosier F70, F75, D800, and American Racer AR-870 are approved for dirt events.

Mid-Am sells tires via 2 vendors:
- BRRT Race Tires with convenient pickup at Grundy County Speedway. Contact John Brolick at 708-603-0476
- David Deery, with the Big8 Late Models, with convenient pickup at or near Rockford Speedway. Contact David at 815-703- 0474
It is not mandatory to purchase your tires through Mid-Am, you may purchase your tires from any vendor

All Mid-Am Series tires must be marked by Mid-Am to be eligible.
The UPC of the tire is tied to the car number. No re-selling or swapping of tires between teams.
Any alterations to tires (marking tires ok) are not permitted.
Mid-Am Reserves the right to inspect, durometer or lab test any tire at any time.
Any Team found altering tires will be disqualified, losing all points/pay for that Event, and suspended for the next Event. The team will also be responsible for any lab fees for (SPME) and (GC/MS) testing.

1

All Mid-Am Series tires must be marked by Mid-Am to be eligible.
All Teams must have the correct amount of new/used Mid-Am marked tires.
Damaged tires should be reported to Mid-Am Tech immediately. Damaged tires will be reviewed for replacement on a case-by-case basis.

**These apply only to non-4 tire events.
All used tires must be marked by Mid-Am prior to the first practice to be considered for competition.
Used tires must have a tread depth of 4/32 or less to be eligible for use.
For Mid-Am Events with qualifying, the tires you qualify will be the tires you utilize for the rest of the event.
For Mid-Am Events without qualifying, practice tires will be the tires you utilize for the rest of the event.
Any Competitor that cannot present eligible used tires may be treated as unqualified. Unqualified cars must start in the back of all Events and must complete every lap to advance.

4 tires - Grundy County Speedway

4 tires - Hawkeye Downs Speedway

1 tire - Madison International Speedway

1 tire - Dells Raceway Park

0 tires - Kankakee County Speedway

*1 tire - Madison International Speedway

4 tires - Winchester Speedway

*2 tires - Grundy County Speedway

*1 tire - LaCrosse Speedway

* indicates one (total) additional tire may be used by any team that has competed in all events

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