The 67-year-old Potter won the pole for the first of two 50-lap races for the Super Cup Stock Car Series with a lap of 15.516 seconds, and he and the 70-year-old Teague started from the front row.
Potter led the first 38 laps around the 3/8-mile concrete oval, while eventual race winner Ben Ebeling, of Hickory, N.C., in a third Potter-owned car, got around Teague for second. Teague fell to fifth before working his way up to back to third. Ebeling caught up to Potter on lap 30 and began pressuring him for the next few laps before making the pass for the lead.
Four laps later, Potter and Bob Schacht got together in a battle for second that sent Schact spinning. Larry Berg then moved to second before spinning out in turn two, which collected Teague and a pair of others.
In a hectic final few laps, Teague worked his way back up to fourth and Potter finished sixth.
It set the stage for a second race, where Potter again moved out front at the start. But Ebeling got around him on lap 3 and Schacht passed him for second on lap 5.
Potter finished fourth in the second race, while Teague wound up sixth, giving them the same finishes on the evening. Ebeling powered on to the win to give Potter a clean sweep of races as a car owner.
John Kerley and Kevin Kromer made contact on the track on lap 33 and then got into a confrontation in the pits after the race.
Chucky Williams from Tazewell, Va., scored his first ever Mod 4 victory. A multi-car pile-up collected several leaders at the start of the Pure 4 feature, although Bruce Crumbley recovered to earn his second win. David Strong of Weber City, Va., captured the Pure Street win after leader Kevin Darnell fell out with mechanical problems.
There was a scoring controversy in Mod Street, with the results to be posted after a review of video by track officials Monday.
The Sise brothers of Knoxville won races on the 4/10-mile dirt oval at Volunteer Speedway on Saturday night, while a pair of Washington County drivers posted top-five finishes in the Crate Late Model race.
Trevor Sise held off main challenger Rusty Ballenger to win the Crate Late Model feature, while Bobby Mays of Jonesborough finished third and Tim Maupin of Johnson City was fourth.
Zach Sise, the 18-year-old younger brother of Trevor, captured the Sportsman Late Model victory. Gary Blanken of Russellville was the Modified Street winner. Knoxville drivers Lee Merritt and Will Carey each scored Classic wins, while Josh Driskell from Newport got the 602 Street Stock win.