Sweeping the Giants in SF is going to a tough act to follow, but the Reds will try to get a start on that tonight with Mat Latos on the hill. He's pitched twice against the Padres since getting traded from there a few years ago, and owns an ERA of 1.38 in those starts at Petco.
They'll face Jesse Hahn, who's making his 5th career start. He has a 2.38 in his 4 starts so far, and has obviously not faced the Reds yet.
Go Reds! They're my favorite team!