Cardinals starter Adam Wainwright issued his first walk of 2013 in another dominant outing on Tuesday against the Nationals. He worked 8 1/3 scoreless innings, giving up just five hits while striking out nine in a 2-0 win.

Wainwright issued a free pass to Bryce Harper in the sixth to end his streak of 34 2/3 innings without a walk. The right-hander was pulled after putting a man on in the ninth and threw 74 of his 113 pitches for strikes. He also lowered his ERA from 2.48 to 1.93 while earning his fourth win.

His next start is scheduled for Monday against the Reds. In three starts against Cincinnati last season, Wainwright went 1-2 with a 5.29 ERA.