Corey Heim, a part-time driver making only his 13th start in the Cup Series, outdueled teammate Tyler Reddick to win the inaugural NASCAR race at Naval Base Coronado

Corey Heim, a part-time driver making only his 13th start in the Cup Series, outdueled teammate Tyler Reddick to win the inaugural NASCAR race at Naval Base Coronado.

Corey Heim, a part-time driver making only his 13th start in the Cup Series, outdueled teammate Tyler Reddick to win the inaugural NASCAR race at Naval Base Coronado

Corey Heim was tracking to be a major player in NASCAR's Cup Series ... once he got a full-time ride. Sunday's win accelerated the timeline.

Corey Heim took the fight to Tyler Reddick in the closing laps of Sunday's Anduril 250 at Naval Base Coronado, and came away with his first Cup Series win.