Construction of a new $35,000 racetrack in Oxford began on April 10, 1950 when bulldozers began demolition of foliage on the side of
State Route 26 with Damon Brothers Lumber. The operator of the lumber company, George Damon, also served as President of the Pine State Stock Car Racing Association (PSSCRA). The sawmill in
Norway, Maine would create the lumber necessary for the long grandstand, which would have capacity for 5,000 attendees, becoming the second-largest in the state. The track would be an oval of clay and gravel and have heavy banking for race car drivers. The new track would also have lights so night racing could be held. Damon was confident that the new track would be ready to open on May 30. By May 26, the track was in place, along with the new grandstand and parking lot for 1,000 cars. Crews worked to finish the track for the opening race on May 27, 1950. Local time trials on May 21 found that the surface was dusty and an oil company was called in to help treat the surface to eliminate the dust. Officials from the PSSCRA, who sponsored the races that weekend, invited racers from several local groups to participate the races. The opening weekend would include four qualifying heat, a consolation race, two semi-final races and the main event. The stadium held The
Monsters of Rock Festival, featuring
Van Halen,
Scorpions,
Dokken,
Metallica and
Kingdom Come on June 25, 1988. A show scheduled for the previous day was cancelled. The show brought in an estimated 40,000 people to the racetrack and caused traffic jams along
Maine Route 26 to the
Maine Turnpike. Following traffic and crowd issues with the two concerts, the town of Oxford voted create a town ordinance to restrict crowd sizes at events in town to a maximum of 25,000 people. In late 2012 the owner Bill Ryan sold the speedway to current owner
Tom Mayberry. Since then there has been a change in the direction of the speedway, it no longer sanctions ACT-type Late Models as a weekly division, instead turning to Tom Mayberry's PASS (
Pro All Star Series) Super Late Models which now serve as the weekly headliner. The
Pro All Stars Series Super Late Model and Modified tours also make several stops at Oxford Plains during the racing season. The Oxford 250 is now a PASS Super Late Model race, with drivers across the continent who participate in Super Late Models under PASS, NASCAR, Champion Racing Association, Spears Southwest Tour, and other top Super Late Model series to use the same car they use in their home series, as most tracks with Super Late Models use a single set of rules for car specification. In 2018, the
American Canadian Tour made its return to Oxford Plains after an absence in 2017 with
Eddie MacDonald sweeping both the events. ACT returned in 2019 with the Pro All Star Series and Oxford Plains season opener in May along with the Saturday night race before Oxford 250 Sunday in August. The Oxford 250 night before event will also feature
Modified stock car racing from the Tri Track Modified Series. ==Super Late Model Track Championship==