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 rankings through the Thursday, August 2nd games: The rankings from last week are in parenthesizes. 1. (1) New York Yankees - 4.19 2. (4) Cincinnati Reds - 4.07 3. (3) Washington Nationals - 4.05 4. (5) St. Louis Cardinals - 3.98 5. (2) Texas Rangers - 3.94 6. (12) Arizona Diamondbacks - 3.72 7. (6) Los Angeles Angels - 3.70 8. (8) Pittsburgh Pirates - 3.53 9. (14) Atlanta Braves - 3.52 10. (9) Detroit Tigers - 3.51 11. (15) Oakland Athletics - 3.43 T12. (11) Los Angeles Dodgers - 3.41 -- (13) Chicago White Sox - 3.41 14. (10) San Francisco Giants - 3.37 15. (17) Tampa Bay Rays - 3.36 16. (7) Boston Red Sox - 3.29 17. (18) Milwaukee Brewers - 3.21 18. (16) New York Mets - 3.15 19. (19) Philadelphia Phillies - 3.03 20. (20) Toronto Blue Jays - 2.93 21. (21) Baltimore Orioles - 2.90 T22. (22) San Diego Padres - 2.84 -- (26) Seattle Mariners - 2.84 24. (23) Kansas City Royals - 2.77 25. (24) Miami Marlins - 2.74 26. (25) Cleveland Indians - 2.55 27. (27) Chicago Cubs - 2.54 28. (29) Minnesota Twins - 2.49 29. (28) Colorado Rockies - 2.34 30. (30) Houston Astros - 2.06