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, July 28th games: The rankings from last week are in parenthesizes 1. (1) New York Yankees - 4.30 The Yankees lead all of baseball with 135 home runs and have the third-highest OPS (.778) and number of runs scored (529). 2. (2) Boston Red Sox - 4.22 Aside from the power of New York, no one has been able to touch Boston offensively this season. If they acquire a pitcher at the deadline, the American League East will be all but wrapped up. 3. (3) Texas Rangers - 4.07 Texas has a team ERA of 3.77 (12th) and will likely add a reliever in the next few days. 4. (4) Philadelphia Phillies - 3.95 At "press time" the Phillies were hot after Hunter Pence, who would improve their middling offense enough to make them the favorite to represent the National League in the World Series for the third time in four years. 5. (6) Los Angeles Angels - 3.71 The Angels withstood the hot streak of the Rangers and sit just two games back in the AL West heading into the weekend. T6. (5) Atlanta Braves - 3.69 Down five games, catching Philadelphia is still possible, but Atlanta can rest assured that the NL Wild Card is theirs to lose. -- (8) St. Louis Cardinals - 3.69 St. Louis is hoping that Edwin Jackson will help improve their pitching enough to outlast the Brewers, Pirates and Reds. 8. (7) San Francisco Giants - 3.59 Carlos Beltran makes the Giants much better offensively with his presence alone. They scored four runs against the Phillies in a win on Thursday night, a half-run better than their season average. 9. (12) Milwaukee Brewers - 3.38 If Prince Fielder leaves, as expected, the Brewers are going to have some work to do to remain in the playoff conversation in 2012. 10. (10) Pittsburgh Pirates - 3.37 The Pirates are the best story in baseball this season, but they have to outlast three very solid clubs in order to make the postseason. Are they too young to realize what is at stake? 11. (15) Arizona Diamondbacks - 3.36 12. (9) Tampa Bay Rays - 3.34 13. (T16) Chicago White Sox - 3.33 14. (11) New York Mets - 3.31 15. (T13) Oakland Athletics - 3.28 16. (T19) Cincinnati Reds - 3.25 17. (T13) Toronto Blue Jays - 3.21 18. (18) Detroit Tigers - 3.17 Biggest Jump: 19. (23) Florida Marlins - 3.14 20. (T19) San Diego Padres - 3.12 21. (22) Cleveland Indians - 3.10 Biggest Drop: 22.(T16) Colorado Rockies - 3.07 23. (21) Washington Nationals - 3.01 24. (24) Los Angeles Dodgers - 2.91 25. (25) Seattle Mariners - 2.70 26. (26) Kansas City Royals - 2.68 27. (28) Chicago Cubs - 2.54 28. (29) Baltimore Orioles - 2.43 29. (30) Houston Astros - 2.38 30. (27) Minnesota Twins - 2.37