The Rangers (92-64) clinched their third consecutive post-season berth with the victory, and now set their sights on their third-straight AL West crown. They lead the A's by four games, and the win reduced their magic number to three.
Oakland went into the four-game series needing to win it, if not sweep, to stay in contention. Oakland (88-68) and Baltimore (89-67) are the top non-division leaders in the AL.
The Rangers have a chance to clinch the division title as they open a three-game set against Los Angeles Friday. They travel to Oakland for a three-game series starting Oct. 1 – the last series of the regular season.