John Jaso hit the go-ahead single in the sixth inning and Blake Beavan's 7 2-3 strong innings led the Mariners to their seventh consecutive victory, 5-3 over the Toronto Blue Jays on Wednesday night.
The winning streak is Seattle's longest since an eight-game run June 23-July 1, 2011.
Beavan (7-6) gave up three runs and seven hits. He threw 82 pitches and struck out four. He is undefeated (4-0) since being recalled from Triple-A Tacoma July 17.
Toronto starter Carlos Villanueva (6-1) threw six innings, allowed seven hits, four earned runs and struck out six. He went 4-0 and allowed just five earned runs in July
Tom Wilhelmsen pitched the ninth for his 15th save.