Updated

HOUSTON (AP) Colby Rasmus hit a tie-breaking grand slam in the fifth inning to lead the Houston Astros to an 8-3 win over the Boston Red Sox on Saturday that snapped a four-game skid.

He drove in a fifth run with a double in Houston's three-run eighth for his most RBIs since he had six on June 2, 2011.

The game was tied a 1-1 and Clay Buchholz (0-2) had retired eight straight before walking Luis Valbuena with no outs in the fifth. George Springer singled with two outs before Buchholz plunked Carlos Correa to load the bases.

Rasmus then launched a 93 mph fastball with two strikes to the seats in right-center field for his fifth career grand slam and Houston's second this season to make it 5-1.

Mike Fiers (2-1) allowed five hits and two runs with six strikeouts in 5 1/3 innings for his second win in a row.