2025 Tire Rules
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The Hoosier D800 is approved for asphalt events.
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The Hoosier F70, F75, D800, and American Racer AR-870 are approved for dirt events.
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Mid-Am sells tires via 2 vendors:
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BRRT Race Tires with convenient pickup at Grundy County Speedway. Contact John Brolick at 708-603-0476
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David Deery, with the Big8 Late Models, with convenient pickup at or near Rockford Speedway. Contact David at 815-703- 0474
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It is not mandatory to purchase your tires through Mid-Am, you may purchase your tires from any vendor
All Teams (general)
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All Mid-Am Series tires must be marked by Mid-Am to be eligible.
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The UPC of the tire is tied to the car number. No re-selling or swapping of tires between teams.
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Any alterations to tires (marking tires ok) are not permitted.
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Mid-Am Reserves the right to inspect, durometer or lab test any tire at any time.
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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.
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All Teams (race day)
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All Mid-Am Series tires must be marked by Mid-Am to be eligible.
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All Teams must have the correct amount of new/used Mid-Am marked tires.
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Damaged tires should be reported to Mid-Am Tech immediately. Damaged tires will be reviewed for replacement on a case-by-case basis.
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New & Visiting Drivers
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**These apply only to non-4 tire events.
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All used tires must be marked by Mid-Am prior to the first practice to be considered for competition.
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Used tires must have a tread depth of 4/32 or less to be eligible for use.
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For Mid-Am Events with qualifying, the tires you qualify will be the tires you utilize for the rest of the event.
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For Mid-Am Events without qualifying, practice tires will be the tires you utilize for the rest of the event.
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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.
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2025 Tire Schedule
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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