Similarly, after recovering from a horrific wreck in the Truck Series in 2015, Theriault brought Ken Schrader his first Championship in 2017. His dedication to their success paid off with a final count of seven wins, 16 top-five’s, and 19 top-ten finishes in 20 starts. Theriault's consistency marked his place in ARCA history as the only driver to win on a short track, superspeedway, dirt track, and road course in one season. In addition to the overall championship, Theriault captured the Bill France Four Crown, General Tire Superspeedway Challenge, Sioux Chief Short Track Challenge, and the S&S Volvo Laps Completed special awards.