According to Elias +

 

Phil Hughes
Phil Hughes

Phil Hughes struck out six without walking a batter over seven innings, earning a victory in the Twins’ 4-1 win over the Royals at Target Field last night. It was the 13th start this season in which Hughes didn’t issue a base on balls, the highest such total in the majors. The only other pitchers in double figures are Hisashi Iwakuma (11) and Tim Hudson (10).

Carlos SilvaThe Twins record for most starts in a season with no walks is held by Carlos Silva who had 18 games with no walks in 2005. That same season, Brad Radke had 17 starts with no walks. That same year Johan Santana and Joe Mays had seven games with walks and Kyle Lohse had six games with no bases on balls. Twins opponents had to hit their way on base back then. In 2005 Twins starters had a total of 58 games where they did not walk a batter and is an all time best. In 2014 Twins starters have 30 games todate with no walks. The Twins worst season for starters not allowing a walk was back in 1976 when they had only six games with zero walks.