The 2018 M&M's 200 presented by Casey's General Store was the 9th stock car race of the 2018 NASCAR Camping World Truck Series season and the 10th iteration of the event. The race was held on Saturday, June 16, 2018 in Newton, Iowa at Iowa Speedway, a 7⁄8 mile (1.4 km) permanent D-shaped oval racetrack. The race took the scheduled 200 laps to complete. At race's end, Brett Moffitt of Hattori Racing Enterprises would survive a hard-charging Noah Gragson and a banzai last-turn move to win his 3rd ever NASCAR Camping World Truck Series career win and the 2nd win of the season. To fill out the podium, Noah Gragson and Harrison Burton, both from Kyle Busch Motorsports would finish 2nd and 3rd, respectively.