The Mariners still hold a 1 1/2 game lead over Texas in the American League West and remain a half-game behind Boston for the best record in the AL at 28-19, but they are just 10-12 at Safeco.
Hernandez (4-4, 2.86 ERA) allowed a season-high six runs on eight hits, with five of those hits and runs coming in the third inning as he suffered his first loss to the Twins since 2011.
MOMENTS THAT MATTERED
Twins drop a five-spot: Minnesota got to Hernandez in a major way in the third inning.