Now in its thirty-fifth year, the Ontario Stock Car Association of Asphalt Racers (OSCAAR) is responsible for sanctioning two divisions: Modified and Hot Rod.

On November 1, 2022, it was announced that OSCAAR had merged with the United Racing Series. The relationship increases OSCAAR's resources and allows the United Racing Series to expand its brand and footprint in motorsports.

During the off-season Overkill Enterprises replaced Just Foam It as the title sponsor for the OSCAAR Modifieds.

There are eight races on the 2025 Overkill Enterprises OSCAAR Modified schedule.

  • May 31 - Flamboro Speedway
  • June 28 - Delaware Speedway
  • July 12 - Full Throttle Motor Speedway
  • July 26 - Peterborough Speedway
  • August 16 - Sauble Speedway
  • September 27 - Delaware Speedway
  • October 4 - Flamboro Speedway
  • October 10 - Peterborough Speedway

The cars competing in this class are purpose-built open-wheel vehicles. The Modifieds use a steel tube frame chassis, which is no less than 1-3/4-inch outside diameter with 0.095-inch wall thickness. Bodies are made of sheet metal, with the driver’s compartment and engine bay covered. The cars may be any make or model, but they tend to have little to no resemblance to their road-going counterparts.

The engine option selected by the car owner determines the weight of the vehicle. A Modified using 350-horsepower Crate Engine is the lightest at 2,600 pounds and 2,775 pounds is required for a car powered by a Built Motor. Weight may be added or removed depending on the choice of transmission.

Many of the other rules governing the OSCAAR Modified class are for driver safety and to keep costs down.

Round seven of the 2025 Overkill Enterprises OSCAAR Modified Series was held at Flamboro Speedway during the track's Frostoberfest event. Drivers competed in a forty-lap contest around Flamboro's 1/3-mile semi-banked asphalt oval.

The Overkill Enterprises OSCAAR Modified point season ended with round six at Delaware Speedway. The final two races at Flamboro and Peterborough Speedway did not count towards the championship.

The pace lap for round seven of the 2025 Overkill Enterprises OSCAAR Modified Series. On the pole and series' newest champion is Steve Trendell in the No. 46 Thomson Signs sponsored Modified. On the outside of Trendall is the No. 88 Darrell Dick Excavating Modified driven by Ryan Dick. In the second row are Jason Keen, piloting the No. 18 Modified with backing from Oakville Auto and Diesel, and Dale Reinhart in the No. 51 Reinhart Trailers Sales Modified.
Last season's Overkill Enterprises OSCAAR Modified champion Jason Keen drives the No. 18 Oakville Auto and Diesel-sponsored Modified. Keen finished fourth in the series this year. He entered all six events and collected five top-five results, including two victories. Keen competed in the first heat race at Flamboro and finished third. He started the feature in third place but was second before the end of the first lap. Keen grabbed the lead eleven circuits later for the win.
Dale Reinhart came very close to capturing this year's Overkill Enterprises OSCAAR Modified championship. He lost the title by a single point. His season included victories at Full Throttle Motor Speedway and Delaware Speedway. At Flamboro, the driver of the No. 51 Scott Reinhart Trailers Sales Modified participated in the first qualifier and finished second. Reinhart was gridded fourth for the finale, but finished second by a margin of 0.350 seconds.
Steve Trendell left the Canadian Vintage Modified scene to join the Overkill Enterprises OSCAAR Modified series in 2021. After finishing third in last year's championship, he earned the 2025 title with a victory and six top-five results. Trendell collected a win in the first heat race at Flamboro. He started the feature on the pole in the No. 46 Thomson Signs Modified. Trendell held the top spot until he was passed by Jason Keen and Dale Reinhart.
The top three finishers for round seven of the 2025 Overkill Enterprises OSCAAR Modified series at Flamboro Speedway. Standing in the center is the winner, Jason Keen. Keen, who was also victorious in the opening round at Flamboro. On the left is the runner-up, Dale Reinhart. Reinhart's season also includes two wins, which he collected at Full Throttle Motor Speedway and Delaware Speedway. The final spot belongs to this year's champion, Steve Trendell.

FINISHSTARTDRIVERCLASS / SPONSORLAPSRETIREMENTS
13Jason KeenModified / Oakville Auto and Diesel40-
24Dale ReinhartModified / Scott Reinhart Trailers Sales40-
31Steve TrendellModified / Thomson Signs40-
46Brent McLeanModified / The Tiny Human Company40-
52Ryan DickModified / Darrell Dick Excavating40-
68Wally WilsonModified / The Fyre Place40-
75Tyler BullionModified / Goreski Roofing39-
89Dave MathersModified / Overkill Enterprises39-
97Andrew MasseyModified / Great North Storage39-
--Mike WestwoodModified / Oshawa Hearing Aid Clinic0Did Not Start

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