Duke worked his first shutout and complete game Tuesday, limiting the Chicago Cubs to five hits and a walk in an 8-0 win. The Pittsburgh left-hander now has a 10-4 career record, with four of those wins against the Cubs. He is 2-2 with a 3.46 ERA in six starts this season. (Updated 5/3/2006) Analysis: In his four starts against the Cubs, Duke has allowed just two earned runs and has a 0.56 ERA. He was 2-0 against the Cubs last season, beating them and Greg Maddux twice at Wrigley Field.