SEATTLE (Interstat) — Cal Raleigh hit a grand slam and drove in five runs to lead the Seattle Mariners to an 8-0 victory over the Cincinnati Reds on Monday at T-Mobile Park.

Seattle broke the game open with a six-run seventh inning. Victor Robles, who went 4 for 4, scored twice. George Kirby pitched six scoreless innings, allowing three hits and striking out six, to improve to 8-8. Andrew Abbott took the loss for Cincinnati, falling to 5-6.

The Mariners scored one run in the fifth on a Julio Rodriguez single. After a sacrifice fly by Colt Emerson in the seventh, Weston Wilson doubled home a run. Raleigh’s grand slam off Abbott made it 7-0. Raleigh added a run-scoring forceout in the eighth.

Cincinnati managed only three hits and dropped to 45-54. Seattle, now 51-50, received scoreless relief from Nick Davila and Michael Rucker, who struck out three in one inning. Attendance was 35,929, and the game lasted 2 hours, 34 minutes.