1986 Renata Galasso Mattingly #12

Really nice minor league snapshot of Mattingly at bat. Not quite the familiar stance but he did tinker with it a lot.

According to the Google AI, Mattingly hit .313 in Fenway Park. He also hit .313 at Yankee Stadium for his career (.302 overall batting average in away games). I couldn't find anything about his average at the Big A.