CLEVELAND -- Zach McAllister pitched 7 2/3 scoreless inning and Jason Kipnis hit a two-run homer in the sixth, leading the Cleveland Indians to a 2-0 win over the San Diego Padres in the first game of a doubleheader on Wednesday.
McAllister (1-0) allowed five hits, struck out seven and didn't walk a batter.
McAllister worked around doubles in the first, third and fifth.
The Padres have lost six of seven and have scored 18 runs in eight games.
San Diego's defense, which committed two costly errors in Tuesday's night's 8-6 loss, let Stults down in the sixth. Amarista fielded Nick Swisher's ground ball, but his throw was in the dirt, skipped past first baseman Yonder Alonso and bounced into the camera bay for a two-base error.
Kipnis, who signed a six-year, $52.5 million contract extension last week, hit the first pitch to right-center, where Venable barely missed a leap grab.
The error and homer seemed to unnerve Stults, who walked Carlos Santana and gave up a double to Ryan Raburn to put runners on second and third. Stults then strike out Michael Brantley on a 3-2 pitch. Nick Vincent relieved and struck out Yan Gomes.
Stults kept the Indians off balance by mixing his pitches and using a changeup in the range of 75 mph at times. The left-hander allowed two runs (one earned) in 5 2/3 innings.
Raburn singled with one out in the fourth, but Brantley hit into a double play.
The Padres couldn't take advantage of one-out doubles in the first and third. Smith was stranded at second in the opening inning when Alonso flied out and Yasmani Grandal struck out. Amarista reached second in the third, but Cabrera struck out and Smith grounded out.
Nick Hundley doubled with two down in the fifth, but Amarista flied out.
The Indians optioned RHP Vinnie Pestano to Triple-A Columbus before the first game. Pestano allowed three runs in two-thirds of an inning Tuesday and goes to the minors with a 13.50 ERA. ... San Diego OF Xavier Nady's home run in the ninth inning Tuesday was his first hit since Sept. 30, 1012 when he homered for San Francisco against the Padres. Nady spent all of last season in the minors. ... Stults recorded a career-high 11 wins last season and was 3-0 in his final four starts. ... Cleveland begins a four-game series in Chicago on Thursday night. ... The Padres open a 10-game homestand Friday against Detroit.