KANSAS CITY (Interstat) — Willson Contreras drove in three runs and the Boston Red Sox scored four in the ninth inning to beat the Kansas City Royals 7-1 on Tuesday night at Kauffman Stadium.

The Red Sox took an early lead with single runs in the first and second innings. Isiah Kiner-Falefa went 3-for-3 and scored twice. Caleb Durbin added an RBI single. Jarren Duran hit a three-run homer in the ninth, his fifth of the season. Contreras singled in another run later in the inning.

Kansas City scored its only run in the first on a double by Lane Thomas that drove in Bobby Witt Jr.

Garrett Whitlock pitched a scoreless eighth inning for the win, improving to 3-1. Bailey Falter took the loss, falling to 0-1. Ranger Suarez started for Boston, allowing one run over 4 1/3 innings.

Boston had 15 hits while Kansas City managed six. The game lasted 2 hours, 44 minutes before a crowd of 14,047. The Red Sox improved to 21-27, the Royals fell to 20-29. The teams conclude their series Wednesday.