The MLB Perfect Power System Play is on SF. Game 963 at 9:10 eastern. The Giants fit a powerful and perfect system that pertains to 4th of July games that is 15-0 the last 7 years and pertains to certain favorites with a total of more than 7 and less than 12.5 if they are 10 or more wins better than their opponent on the season. SF has won 20 of 27 in the series with Arizona. They are 8-2 as a road favorite and have won 4 of 5 on the road vs a lefty. Desclafani has a 2.91 era and has won 6 of 7 on the road. Arizona has dropped the last 5 with Caleb Smith on the mound and they are a lousy 7-44 as a dog and have lost 16 of 21 to rightys at home. Play on San Francisco