Wainwright had recovered from a rocky first inning to allow one hit until Yelich's single.
The Brewers had five hits, two of the outs were hit hard and Wainwright walked one before escaping with a strikeout of pitcher Adrian Houser.
The inning started with Lorenzo Cain hitting Wainwright’s second pitch for a single to right field. Yasmani Grandal followed with a single before Wainwright retired Christian Yelich on a line drive that Harrison Bader chased down at the warning track.
“I’m trying not to think about that kind of stuff,” Wong said. “Obviously it’s cool to hit at the top of the lineup, get more (at-bats), get into more situations where I can help the team win.