The victory pulled the Royals within 2 1/2 games of the Twins for the second American League Wild Card, but maybe just as important, it may have given Vargas a huge confidence boost heading into the season's final three weeks.
Vargas struck out three and didn't walk a batter.
Yost and Vargas agreed some sessions between starts emphasized him getting the ball down in the zone.
"We were definitely able to keep the ball down, more so than we have in the past," Vargas said. "And that translated into more mis-hit balls early. The offense set us up pretty good there."
Vargas' most serious jam came in the fifth when the Twins loaded the bases with one out, down 6-1.
But Vargas got Brian Dozier to bounce into a 6-4-3 double play on a 2-2 curveball that catcher Salvador Perez called.