Justin Verlander struck out 11 in six strong innings and Yuli Gurriel, Chas McCormick and Jeremy Peña all homered to power the Houston Astros to a 4-2 win over the New York Yankees
Big homers by Bryce Harper and Kyle Schwarber. Zack Wheeler threw one-hit ball for seven innings to lead the Philadelphia Phillies over the San Diego Padres 2-0 in the opening game of the NLCS.
Gerrit Cole cruised for most of the night, Harrison Bader and Anthony Rizzo homered and the New York Yankees beat the Cleveland Guardians 4-1 in their AL Division Series opener
Yordan Alvarez smashed a game-ending, three-run homer with two outs in the ninth inning off Robbie Ray, vaulting the Houston Astros over the Mariners 8-7 in their playoff opener.
Abraham Toro homered and drove in four runs, Cal Raleigh hit his 27th long ball of the season and the Seattle Mariners beat the Detroit Tigers 9-6 to complete a sweep of their doubleheader.
Seattle's Luis Castillo got chased as the Kansas City Royals erupted for 11 runs in the sixth inning for a 13-12 win. That could cost the Mariners a chance to move up in the AL wild-card standings.
Julio Rodríguez doubled and scored before leaving with lower back tightness, and the Seattle Mariners overcame the loss of the rookie center fielder to beat the Oakland Athletics 9-5
Luis Torrens homered for one of four hits by the stumbling Seattle Mariners as they were shut down again by the last-place Oakland Athletics, losing 2-1. Torrens
Santana homered twice, including his first grand slam in three years, and Ty France drove in four runs as the Mariners snapped a three-game losing streak with a 9-1 victory over the Los Angeles Angels.