Jarred Kelenic hit his 10th homer of the season and Luis Castillo pitched six scoreless innings as the Seattle Mariners routed the Oakland Athletics 11-2 on Monday night.
Rookie Jared Shuster allowed one hit in six innings to earn his first career win and the Atlanta Braves took their first series victory over Seattle in 12 years by beating the Mariners 3-2.
Jarred Kelenic and Teoscar Hernández went deep and the Seattle Mariners opened a nine-game road trip with a 5-3 victory over the Philadelphia Phillies.
Luis Castillo retired his first 18 batters, Jarred Kelenic hit an RBI single and the Seattle Mariners beat the skidding Colorado Rockies 1-0 on Sunday to complete a three-game sweep.
Nelson Velázquez hit his first career grand slam in Chicago's eight-run third inning, and the Cubs rallied for a 14-9 victory over the Seattle Mariners on Tuesday night.