Duke allowed three runs and four hits in 2 2-3 innings. Ty Wigginton also had an RBI single for Baltimore in the first.
Top prospect Pedro Alvarez and Ramon Vazquez each singled in a run in the second for Pittsburgh. Vazquez went 2 for 2.
Brad Bergesen yielded two runs and three hits in 1 1-3 innings for the Orioles. Jason Berken and Mark Hendrickson each pitched two scoreless innings.
Daniel McCutchen, vying for the No. 5 spot in Pittsburgh's rotation, struck out two in two perfect innings.