The Tucson, Arizona, native emerged with the lead under the final 100 laps following a stellar service from his pit crew to tame his first Monster Mile victory.
The 2018 Cup champion stormed to the front in the late stages and outlasted the field in overtime to win the inaugural Cup event on the Bristol Dirt Course.
The 27-year-old native from High Point, North Carolina, spoiled Kyle Larson's dominating run to grab his first Cup victory of the 2021 season at Atlanta.
The Louisville, Kentucky, native is set to return to the Cup Series and serve as crew chief for the newly formed Trackhouse Racing and veteran Daniel Suarez in 2021.
The 2016 Xfinity Series champion from Monterrey, Mexico, is set to reach a milestone start in his sixth full-time season within NASCAR's three major division series.