Chris Carpenter has been his usual dominant self this year with a 2.32 ERA and he has allowed more than 3 ER just once all year in his 12 starts. He has been even better in the daytime with a 1.23 ERA and 3-1 record. In his last 4 starts against the Cubs he has allowed only 5 total ER in 26.1 IP for a 1.71 ERA. Rich Harden meanwhile has a 5.35 ERA this year and he has been even worse at home(7.65 ERA in 37.2 IP) and in the daytime(7.41 ERA in 37.2 IP) and has a 10.17 ERA at Wrigley Field in day games. St Louis is averaging 6.1 runs/game on the road in day games against righthanded starters.