Mauricio Dubón hit a tiebreaking, three-run homer in the fourth inning, and the Houston Astros boosted their lead over the Seattle Mariners for the last AL wild card with a contentious 8-3 win.
Dominic Canzone homered and drove in four runs as the Seattle Mariners beat the Oakland Athletics 6-3 to complete a three-game sweep and maintain their position in the tight AL West race.
Mariners rookie Bryan Woo had six strikeouts over five spotless innings in a successful homecoming, and Seattle pulled even for the third AL wild card by beating the last-place Oakland Athletics 5-0.
J.P. Crawford hit a three-run double that broke open the game, Eugenio Suárez homered and had an early RBI single, and the Seattle Mariners scored seven runs with two outs in an 8-0 win over the Los Angeles Angels.
Zach Eflin tied for the American League lead with his 14h win, and the Tampa Bay Rays beat the Mariners 6-3 on Sunday to take three of four in a series between playoff contenders.
Luis Castillo went six innings to win his sixth consecutive decision, Mike Ford drove in a run and the Seattle Mariners beat the Tampa Bay Rays 1-0 in a matchup of playoff contenders.
Logan Gilbert tied his career high with nine strikeouts, Cal Raleigh homered and the Seattle Mariners beat the Chicago White Sox 3-0 to keep the AL wild-card race tight.
J.D. Martinez homered and drove in three runs,as the Boston Red Sox broke a four-game skid and bolstered their playoff hopes by beating the Baltimore Orioles 6-0.