NEW YORK: Edwin Encarnacion hit a pair of home runs in the sixth inning, and the visiting Seattle Mariners scored eight times in the frame to earn a 13-5 victory over the Kansas City Royals on Monday.
The Mariners have scored five or more runs in 11 of their first 12 games and became the first team in the major leagues to win 10 games.
Encarnacion became the first major-leaguer to hit two home runs in an inning in almost three years. Mark Trumbo of the Los Angeles Angels did in on April 15, 2016, at Texas. Seattle also got homers from Daniel Vogelbach, Dylan Moore and Jay Bruce.
Roenis Elias (1-0) picked up the win, pitching three scoreless, hitless innings of relief.
Jonathan Villar homered and had four RBIs while Cedric Mullins tripled twice and drove in three as Baltimore defeated visiting Oakland 12-4.
Ben Zobrist and Kyle Schwarber each drove in two runs, and Chicago rode a six-run second inning to a 12-4 victory over Pittsburgh in the home opener at Wrigley Field.
Ronald Acuna Jr. hit his third home run of the season to spark Atlanta past Colorado 8-6.
Robinson Chirinos hit a two-run, game-tying double in the seventh inning, and Carlos Correa drove in the go-ahead run an inning later as Houston rallied for a 4-3 victory over visiting New York.
Mike Trout did not hit a home run for the first time in five games, but he did steal a home run from reigning National League MVP Christian Yelich, helping Los Angeles extend its winning streak to four games with a 5-2 win over Milwaukee at Anaheim, Calif.
Franmil Reyes capped a San Diego rally with a pinch-hit, two-run home run in the seventh inning as the visiting Padres overcame a five-run deficit and a Kevin Pillar grand slam to overtake San Francisco 6-5.
Rhys Hoskins hit two solo homers, including the tiebreaker on a full-count pitch in the last of the sixth, and Philadelphia beat visiting Washington 4-3.
Blake Snell allowed one run in six innings, and Tampa Bay continued to match its best start in franchise history with a 5-1 win at Chicago.
Marcell Ozuna lined a two-run homer, and Paul Goldschmidt scored the decisive run on a wild pitch as St. Louis beat visiting Los Angeles 4-3.