TOKYO ( AP) — With his first major league home run, Yoenis Cespedes helped the Oakland Athletics gain a split of their season-opening series against the Seattle Mariners.

The Cuban defector’s goahead, two-run drive in the seventh inning off reliever Shawn Kelly sent the A’s on to a 4-1 victory Thursday night at the Tokyo Dome.

Bartolo Colon (1-0) won his Oakland debut after spending last season with the Yankees, pitching three-hit ball over eight innings and allowing his only run on Justin Smoak’s seventh-inning homer.

Josh Reddick followed Cespedes and homered off George Sherrill to give Oakland backto back homers. Jonny Gomes hit his first Oakland home run in the eighth off Steve Delabar, and Grant Balfour pitched a 1-2-3 ninth for the save, his first since becoming the A’s closer.

A day after getting four hits in Seattle’s 3-1 win, Japanese star Ichiro Suzuki went 0 for 4 for the Mariners. He excited the crowd of 43,279 in the fifth with a leaping catch up against the wall in right to take away a base hit from Kurt Suzuki.

Kelley (0-1) lost in relief of Jason Vargas, who given a lead walked Coco Crisp leading off the seventh.

Both teams now head back to U.S., with the Mariners resuming spring training games in Arizona on Saturday and Oakland playing exhibition games in California. They go back to games that count on April 6, when the Mariners start a two-game series at the A’s that is followed by a rare Sunday off.