Long (3-1) allowed a hit and a walk while striking out two over 1.1 scoreless innings to earn the win in Game 2 of Monday's doubleheader versus the Guardians.
Long struck out two in a perfect ninth inning Tuesday to record his first save of the season in a 4-3 win over the White Sox.
Long (2-1) walked one and struck out four over 1.2 scoreless and hitless innings to earn the win Thursday over the Guardians.
Long (0-1) allowed two unearned runs on one hit and one walks while striking out one over two-thirds of an inning to take the loss Tuesday versus the Guardians.
The Royals selected Long's contract from Triple-A Omaha on Monday.
Kansas City signed Long to a minor-league contract Thursday.
Long cleared waivers and was outrighted to Triple-A Las Vegas on Thursday.
Long was optioned to Triple-A Las Vegas on Wednesday.
Oakland recalled Long from Triple-A Las Vegas on Friday.
Long was optioned to Triple-A Las Vegas on Saturday.