Mayer and his No. 1 JR Motorsports team were among the slowest cars in Friday’s practice, but you couldn’t tell in the race as he seemed to get stronger as the race went on.
Mayer ran down Riley Herbst to take the lead with seven of the original 250 laps remaining, but the race went into overtime due to a late caution when John Hunter Nemechek hit the wall with a cut tire following a run-in with his Joe Gibbs Racing teammate Sheldon Creed.
On the overtime restart, Mayer and Herbst lined up on the front row, but Mayer quickly cleared him for the lead exiting Turn 2 and held him off by 0.146 seconds at the checkered flag.
Watch: Sam Mayer ‘out of breath’ after holding off Herbst for Iowa win
After a tough start to the 2024 season, Mayer now has a pair of victories this year and earned the sixth of his career.
“We weren’t very good yesterday, but this team went to work and obviously we did pretty good overnight,” Mayer said. “We got a little bit tight there at the end of the second stage and I was a little concerned there (about tires) but my crew said they looked good.
“We took care of it and did our job and now we get to celebrate.”
Corey Heim finished a career-best third, Sammy Smith was fourth and Creed ended up fifth.
Completing the top 10 were Cole Custer, Matt DiBenedetto, Chandler Smith, Ross Chastain and Daniel Dye.
Stage 1
Chandler Smith claimed the Stage 1 win under caution following a wreck by Jeb Burton with three laps remaining. Creed was second, Mayer was third, Justin Allgaier fourth and Sammy Smith rounded out the top five.
A.J. Allmendinger had a right-front tire go down, shot up the track and slammed into the Turn 4 wall on lap 35. The extensive damage to Allmendinger’s No. 16 Chevrolet knocked him out of the race.
Stage 2
Chandler Smith took the Stage 2 win under caution as Jesse Love had a tire go down and slammed the wall on the final lap. Mayer was second, Chastain third, Heim fourth and Sammy Smith ended up fifth.
Three-time Supercars champion Shane van Gisbergen saw an early end to his race when he got loose and turned into Blaine Perkins and both hit the Turn 2 wall on lap 87.
Stage 3
During the break between Stages 2 and 3, most of the lead lap cars pit but Josh Williams stayed out and inherited the lead. During the stops, Chastain and Riley Herbst collided while exiting pit road.
Williams was quickly passed by Ryan Sieg for the lead when the race resumed with 90 laps…
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