My best bet play
San Francisco Giants (12-9, 8-4 home) vs. Colorado Rockies (11-11, 4-6 road)
Barry Zito (3-0, 1.32 ERA) vs. Aaron Cook (1-2, 5.01 ERA)
In Zito's last start (vs. St. Louis last Saturday), he had only his second double-digit strikeout game as a Giant. He struck out 10 and allowed only three hits and three walks in eight shutout innings in a 2-0 win.
All four of Zito’s starts this season have been quality starts.
Zito has been fantastic against the Rockies in his time with the Giants
He’s 4-2 overall in 10 starts, with an ERA of 2.05.
ZITO is 4-2 when starting against COLORADO with an ERA of 1.98 and a WHIP of 1.060.His team's record is 8-3 (+6.7 units) in these starts.
Cook is coming off of a fantastic performance in a complete-game win over the Marlins last Saturday, as he allowed only five hits and one run in an 8-1 win.
However, he has struggled in his first two road starts this season, allowing five runs in 5.1 innings in a 5-4 loss at Milwaukee on the 7th and allowing five runs in just three innings in a 5-2 loss at Washington on the 19th.
COOK is 7-9 when starting against SAN FRANCISCO with an ERA of 5.09 and a WHIP of 1.621.
His team's record is 7-13 (-8.0 units) in these starts.
.... (MY BEST BET PLAY) 
over Baltimore
over Cincinnati
Barry Zito (3-0, 1.32 ERA) vs. Aaron Cook (1-2, 5.01 ERA)
In Zito's last start (vs. St. Louis last Saturday), he had only his second double-digit strikeout game as a Giant. He struck out 10 and allowed only three hits and three walks in eight shutout innings in a 2-0 win.
All four of Zito’s starts this season have been quality starts.
Zito has been fantastic against the Rockies in his time with the Giants
He’s 4-2 overall in 10 starts, with an ERA of 2.05.
ZITO is 4-2 when starting against COLORADO with an ERA of 1.98 and a WHIP of 1.060.His team's record is 8-3 (+6.7 units) in these starts.
Cook is coming off of a fantastic performance in a complete-game win over the Marlins last Saturday, as he allowed only five hits and one run in an 8-1 win.
However, he has struggled in his first two road starts this season, allowing five runs in 5.1 innings in a 5-4 loss at Milwaukee on the 7th and allowing five runs in just three innings in a 5-2 loss at Washington on the 19th.
COOK is 7-9 when starting against SAN FRANCISCO with an ERA of 5.09 and a WHIP of 1.621.
His team's record is 7-13 (-8.0 units) in these starts.
.... (MY BEST BET PLAY) over Baltimore over Cincinnati
