The Opsera is a statistic RealGM Executive Editor Chris Reina created in order to objectively rank teams by how well they hit (OPS) and pitch (ERA). In order to determine the Opsera rating for each, we take their OPS, multiply that number by 10 to move the decimal point over one place to the right and then subtract their ERA from that number. Below are the final rankings through the Thursday, August 11th games: The rankings from last week are in parenthesizes 1. (1) New York Yankees - 4.38 The Red Sox still own the Yankees this season, but run differential (+172) has allowed New York to remain at the top by a wide margin for several weeks. 2. (2) Boston Red Sox - 4.18 Boston has actually scored nine more runs than New York, but their pitching staff has surrendered three dozen more runs in 2011. 3. (3) Philadelphia Phillies - 4.11 They have won 11 of 12 since acquiring Hunter Pence, who is hitting .375/.409/.650 with three home runs and eight RBI this month. 4. (4) Texas Rangers - 4.06 Remember when Michael Young was a good as gone? He is hitting .335 this season, good enough for the third-best average in the American League. 5. (5) St. Louis Cardinals - 3.75 The Cardinals, four back of the Brewers in the National League Central, do not look very strong as October approaches. They have lost four of six to Milwaukee this month and there are another six head-to-head battles remaining. 6. (6) Atlanta Braves - 3.67 Where would the Braves be if Jason Heyward had improved on his strong rookie campaign? His batting average is down sixty points and his on-base percentage has dropped eighty points in his second season. 7. (8) Milwaukee Brewers - 3.58 The Brewers are making the best of what is their best chance to make a long playoff run before Prince Fielder leaves via free agency. 8. (7) Los Angeles Angels - 3.57 If their bats get hot in October, they have the pitching staff to make a surprise run at the World Series. 9. (10) Tampa Bay Rays - 3.45 Tampa Bay would be in first place if they were in the AL Central. Instead, they are a distant third in the AL East. 10. (9) San Francisco Giants - 3.42 The acquisition of Carlos Beltran has been a disappointment thus far and a trip to the disabled list is possible. We should wait until the postseason, however, to come to a final verdict. 11. (15) Oakland Athletics - 3.33 12. (T11) Arizona Diamondbacks - 3.30 13. (T11) Cincinnati Reds - 3.27 14. (13) New York Mets - 3.26 15. (21) Chicago White Sox - 3.25 16. (14) Detroit Tigers - 3.18 17. (22) San Diego Padres - 3.17 18. (20) Cleveland Indians - 3.14 T19. (T16) Toronto Blue Jays - 3.12 -- (19) Washington Nationals - 3.12 T21. (18) Florida Marlins - 3.09 -- (23) Colorado Rockies - 3.09 23. (T16) Pittsburgh Pirates - 3.01 24. (24) Los Angeles Dodgers - 2.97 25. (25) Kansas City Royals - 2.79 26. (26) Seattle Mariners - 2.68 27. (27) Chicago Cubs - 2.64 28. (28) Baltimore Orioles - 2.35 29. (30) Minnesota Twins - 2.29 30. (29) Houston Astros - 2.25