Kay (10-9) earned the win Sunday against the Rockies, striking out four while allowing one run on five hits and two walks in five innings.
Kay got a tune-up start ahead of the playoffs, looking sharp Sunday in a strong outing against a soft lineup. The southpaw is likely to serve as either a starter or bulk reliever for the White Sox this postseason following perhaps his best big-league campaign so far. He posted a career-best 4.44 ERA, 1.37 WHIP and 129:56 K:BB across 158 innings this season.