These are strictly the ERA for individual pitchers when facing the other team for 4/17/09 based on the last 3 years.
Jurrjens 4.36 era vs. Pitt -120
Maholm 2.77 era vs. Braves Even
8.5
Young 1.39 era vs. Phili +150
Hamels 2.40 era vs. SD -170
8.5
Bush 6.75 era vs. Mets +120
Hernandez 6.87 era vs. Brewers -140
9.5
Cueto 7.84 era vs. Houston +125
Oswalt 2.61 era vs. Reds -145
8
De La Rosa 8.47 era vs. Dodgers +135
Wolf 5.73 era vs. Rockies -155
8.5
Haren 2.33 era vs. SF -150
Sanchez 7.98 era vs. D backs +130
7.5
Guthrie 3.49 era vs. B Sox +130
Penny no appearance vs. O's -150
9.5
Colon 5.68 era vs. TB Rays +155
Shields 4.50 era vs. W Sox -175
8.5
Meche 6.48 era vs. Rangers (8.53 at Arlington) -110
Harrison 1.25 era vs. KC (1 appearance) -110
10.5
Verlander 2.91 era vs. Mariners +105
Hernandez 3.20 era vs. Tigers - 125
7.5
Jurrjens 4.36 era vs. Pitt -120
Maholm 2.77 era vs. Braves Even
8.5
Young 1.39 era vs. Phili +150
Hamels 2.40 era vs. SD -170
8.5
Bush 6.75 era vs. Mets +120
Hernandez 6.87 era vs. Brewers -140
9.5
Cueto 7.84 era vs. Houston +125
Oswalt 2.61 era vs. Reds -145
8
De La Rosa 8.47 era vs. Dodgers +135
Wolf 5.73 era vs. Rockies -155
8.5
Haren 2.33 era vs. SF -150
Sanchez 7.98 era vs. D backs +130
7.5
Guthrie 3.49 era vs. B Sox +130
Penny no appearance vs. O's -150
9.5
Colon 5.68 era vs. TB Rays +155
Shields 4.50 era vs. W Sox -175
8.5
Meche 6.48 era vs. Rangers (8.53 at Arlington) -110
Harrison 1.25 era vs. KC (1 appearance) -110
10.5
Verlander 2.91 era vs. Mariners +105
Hernandez 3.20 era vs. Tigers - 125
7.5