Scott Diamond pitched six shutout innings and Josh Willingham hit one of Minnesota's four home runs as the Twins beat the Seattle Mariners 10-0 Sunday.
Chris Herrmann hit his first major league homer and Ryan Doumit and Brian Dozier also connected for the Twins. Willingham drove in three runs.
The Twins won for the seventh time in nine games.
Diamond (4-4) allowed four hits, walked one and struck out three. He gave up three hits in the first inning, and little else.
Jeremy Bonderman (0-1) was hit hard in his first major league start since Oct. 1, 2010, with Detroit.
Making his first major league start since Oct. 1, 2010, with Detroit, Bonderman struck out leadoff hitter Eduardo Escobar as part of a 1-2-3 first inning. From there it was all downhill, starting with Ryan Doumit's opposite-field homer to left to start the second.
Bonderman was pulled after Chris Herrmann's sharp two-out single in the fifth, an inning that started with a walk to Joe Mauer and home run by Josh Willingham that put the Twins up 7-0.
Bonderman was charged with seven earned runs on nine hits, three of them home runs, and a walk in 4 2-3 innings. He threw 87 pitches, 53 for strikes. Sidelined by shoulder (2011) and elbow (2012) injuries before signing a minor league deal with Seattle on Jan. 9, he had made 11 starts at Triple-A Tacoma, going 2-4 with a 4.52 ERA before Sunday.