KANSAS CITY, Mo. (AP) — The Seattle Mariners became the first major league team to homer in each of its first 15 games when Dee Gordon connected in the sixth inning, then beat the Kansas City Royals 7-6 Thursday behind Daniel Vogelbach’s home run leading off the 10th.

Seattle improved the best record in the major leagues to 13-2, completing a four-game sweep and extending its winning streak to six. The Mariners became just the third team since 1987 to open with at least 13 wins in the first 15 games after Milwaukee (14-1 in 1987) and Boston (13-2 last year).

Kansas City has lost 10 straight games, has the poorest record in the big leagues at 2-10 and is off to its worst 12-game start since 2006. The Royals failed to preserve leads of 4-0 in the sixth and 6-4 with two outs in the ninth.

Whit Merrifield went 0 for 5, ending his hitting streak at 31 games. He had not gone hitless since Sept. 9. Royals center fielder Billy Hamilton was carted off with a knee injury after failing to grab Mitch Haniger’s tying, two-run triple in the ninth.

The 2002 Cleveland Indians had homered in each of their first 14 games. Seattle’s 36 home runs are tied with the 2000 St. Louis Cardinals for the most in a club’s first 15 games. The Mariners have scored five or more runs in all but one game.

Vogelbach hit a 427-foot drive off Glenn Sparkman (0-1) for his sixth home run this season.

Brandon Brennan (1-0) struck out three in the ninth, working around his own throwing error on a grounder to get his first big league win. Brennan has not allowed a run in his first 9 2/3 innings in the major leagues, holding batters to a .156 average (5 for 32).

Connor Sadzeck pitched a perfect 10th for his first professional save.

Seattle trailed 6-3 before Edwin Encarnación hit an RBI single off Wily Peralta in the eighth.

Pinch-hitter Omar Narváez and Gordon singled off Brad Boxberger with one out in the ninth and Mallex Smith took a called third strike. Haniger hit a long drive on a full count and Hamilton, who entered at the start of the half-inning for defense, allowed the ball to glance off his glove on the warning track.

Haniger, who hit a tiebreaking homer with two outs in the ninth inning on Wednesday, slid into third as two runs scored. Hamilton’s left knee hit the wall, and he crumpled to the warning track, then was unable to put weight on the knee when he got up.


Mariners RHP Erik Swanson made his major league debut, allowing two runs and three hits in two innings. He is the 18th player and ninth pitcher to make his Mariners debut this season.


Royals RHP Jake Newberry was recalled from Omaha, and 1B Frank Schwindel was optioned to the Triple-A farm team.


Mariners: OF Jay Bruce was held out of the lineup with a sore left Achilles. He came out of Wednesday’s game after the third inning because of the injury. … RHP Shawn Armstrong pitched an inning Wednesday night on an injury rehabilitation assignment for Triple-A Tacoma. He is on the 10-day IL with a right-oblique strain.


Mariners: LHP Jake LeBlanc (2-0, 4.76 ERA) starts a homestand opener Friday against Houston.

Royals: RHP Brad Keller (1-1, 2.84 ERA) is to be on the mound Friday against visiting Cleveland.