Seng and Cole Schill, who had the pole in the No. 44 Mid Ag Dispatch MB Custom, lead the field to the green. Seng gained the advantage on the opening circuit, as Schill settled into second.
Edginton moved the No. 4 Performance Auto Victory past Schill on the bottom of turns one and two for the runner-up spot, as Dustin Strand and Jesse Teunis battled for fourth.
Teunis put the No. 70 Grand Prix Amusements MasterSbilt on the cushion of the high-banked, quarter-mile Bullring to keep Strand's No. 71 Q&Z Plumbing & Heating Millenium SRT briefly in fourth.
On the next round, Strand used a perfect slider to move into third as the duo was made into a trio by Joey Pederson, as he advanced his No. 7P Big Jim's Tire Victory into a three-wide battle for third.
With a handful of circuits in the books, Edginton kept pace with Seng up front as the pair had built a lead that was greater than a straightaway.
Seng ripped the top as Edginton showed his nose on the bottom as the lead duo started working lapped traffic with seven laps complete. Back in third, Strand had made his way past Schill for the final spot on the podium.
Shane Edginton (4) and Brad Seng (12S) battle for the lead at River Cities last Friday. Adrienne Spieker photo.
Fourteenth starting Bill Mooney, driver of the No. 2 Lithia Toyota of Grand Forks MasterSbilt by JMR, along with twelfth starting Ryan Kereluk and his No. 29K Edison Electric Services Victory, were joined by Mike Balcaen and his No. 10 Enns Brothers Black Diamond, in a three-wide tussle for eighth through tenth.
Mooney eventually got the best of the battle, moving into eighth as he closed on Zach Naastad, who was making his season debut with the series in the No. Z17 Naastad Acres Millenium SRT.
Though the lap chart officially says that Seng lead every lap, Edginton did all but lead lap nineteen, as the latter lead out of turn four, with Seng narrowly winning the race back to the line. Seng used a lapped car as a pick to open up another advantage with five laps remaining.
Edginton continued to keep pace, and took one last look at the lead in the last pair of laps. Edginton again tried to get the lead from Seng in traffic, but as the pair negotiated turns three and four for the final time, the pair caught a pair of lapped cars.
The four cars went four-wide off turn four, as Edginton ran the bottom, but Seng, with a lapped car on each side of him, won the drag race off the corner to secure the win by three-tenths of a second. Strand was third, with Schill fourth, and Pederson rounding out the top five.
Teunis was sixth, with Mooney seventh. Mooney was also the Performance Auto hard charger, advancing seven spots. Naastad was eighth, with Kereluk and Balcaen rounding out the top ten.
Seng, Schill, and Edginton were the heat winners. 21 cars were in attendance. The NLRA season continues this weekend at the Devils Lake Speedway on Saturday August 3rd, and at the Nodak Speedway on Sunday August 4th.