Mariners 8, Athletics 3: Justin Smoak had three RBIs, Dustin Ackley reached base four times on two hits and two walks and Roenis Elias pitched 6 1/3 solid innings as visiting Seattle defeated Oakland for the second consecutive night.

Ackley and Smoak delivered run-scoring hits in a three-run first as the Mariners started fast and added on late to win for the ninth time in 11 games. The Athletics lost for the fourth time in five contests and are just 6-8 at home while Seattle moved a game above. 500 with its fourth straight victory.

Elias (3-2) struck out six and gave up three runs and five hits while continuing his strong early-season performance. Charlie Furbush entered to strike out Brandon Moss with two on to end the eighth in a one-run game before the Mariners scored four times in the ninth to break it open.

Seattle scored three first-inning runs off Jesse Chavez (2-1) with Smoak’s RBI double and Ackley’s run-scoring single being the key hits. Oakland got back within a run in the second when Nick Punto hit a two-run single to center.

Mike Zunino’s sacrifice fly in the sixth gave Seattle a 4-2 lead before Oakland’s Yoenis Cespedes delivered a leadoff homer in the bottom of the inning. A throwing error by Athletics reliever Jim Johnson opened the door for the ninth-inning uprising and the runs crossed on Corey Hart’s fielder’s choice, Smoak’s two-run single and Kyle Seager’s RBI double.

GAME NOTEBOOK: Chavez allowed four runs and seven hits in 5 2/3 innings. … Seager, Smoak, 2B Robinson Cano and CF James Jones also had two hits apiece for Seattle, while CF Coco Crisp had two for Oakland. … Athletics 3B Josh Donaldson was 0-for-4 with a walk and has reached base in 28 consecutive games.