The 2018 NASCAR Whelen Modified Tour was the thirty-fourth season of the Whelen Modified Tour (WMT), a stock car racing tour sanctioned by NASCAR. It began with the Performance Plus 150 presented by Safety-Kleen at Myrtle Beach Speedway on 17 March and concluded with the Sunoco World Series 150 at Thompson Speedway Motorsports Park on 14 October. Doug Coby entered the season as the defending Drivers' champion. 2018 marked the second season of the unification of the Whelen (Northern) Modified Tour and the Whelen Southern Modified Tour.[1] Justin Bonsignore won the championship, 97 points ahead of Chase Dowling.