Kansas City, Mo. ? Stephen Vogt drove in five runs, Ryon Healy hit a mammoth three-run homer and the Oakland Athletics routed the Kansas City Royals 14-5 on Thursday night.

The A’s continued to wreck the Royals’ diminishing playoff chances, sweeping a four-game road series at Kansas City for the first time in their history. The A’s outscored the Royals 43-12, the largest Oakland run differential in a four-game series in franchise history.

Vogt had a two-run double in a five-run third, walked with the bases loaded in the fourth and hit a two-run homer in the sixth. The five RBIs matched a career high.

Healy, who had three hits, homered in the third with Khris Davis and Yonder Alonso on base. The ball traveled an estimated 480 feet, landing above the left-field fountains.

Healy went 9 for 17 (.529) with two doubles, two home runs and seven RBIs in the series.

Joey Wendle had his first career four-hit game and scored three runs as the A’s banged out 16 hits.

Rookie right-hander Daniel Mengden (2-7), who was 0-4 with a 9.39 ERA in his previous seven starts, was the beneficiary of the offensive outburst. He held the Royals to three hits over seven scoreless innings to pick up the victory, striking out six with no walks.

Royals starter Edinson Volquez (10-11) faced 22 batters and nine scored in 3 1/3 innings. He allowed nine runs and seven hits with four walks. In his past four starts, Volquez has yielded 20 earned runs on 32 hits and nine walks in 18 1/3 innings for a 9.82 ERA.

Chris Young, the third Royals pitcher, gave up the home run to Vogt and has allowed 28 home runs in 85 innings.

Marcus Semien hit his 25th home run, a three-run shot in the eighth off rookie Brooks Pounders.

Christian Colon hit a three-run homer in a five-run ninth as the Royals avoided being shut out for the second straight game.

The Royals have lost eight of their past nine home games.