The Opsera is a statistic RealGM's Chris Reina created in order to objectively rank teams by how well they hit (OPS) and pitch (ERA). In order to determine a team's Opsera, we take their OPS, multiply that number by 10 to move the decimal point over one place to the right and then subtract the team's ERA from that number. Below are the final rankings through Thursday, June 30th’s games: Last week’s ranking is in parenthesizes 1. (1) New York Yankees – 4.41 The Yankees have been very fortunate this season, even getting quality starts from Brian Gordon during Bartolo Colon’s time on the disabled list. Having two players -- Mark Teixeira and Curtis Granderson -- with 20-plus home runs helps as well. 2. (T2) Boston Red Sox – 3.97 Adrian Gonzalez is the front-runner for the American League MVP through the first half of the season. He has played pepper with the Green Monster as expected, hitting .352 (tied for major-league lead) with 71 RBI (best in MLB). 3. (T2) Philadelphia Phillies – 3.90 If Ruben Amaro Jr. adds the right-handed bat that Charlie Manuel has campaigned for, the Phillies will be a fixture in the top-three for the remainder of the season. 4. (4) Atlanta Braves – 3.82 5. (9) Los Angeles Angels – 3.65 6. (T6) St. Louis Cardinals – 3.62 7. (5) Texas Rangers – 3.60 8. (10) Tampa Bay Rays – 3.47 9. (8) Milwaukee Brewers – 3.45 Ryan Braun and Prince Fielder form one of the game’s best one-two punches. It will be interesting to see if Braun’s numbers drop should Fielder leave as a free agent. 10. (T12) San Francisco Giants – 3.41 11. (T6) Arizona Diamondbacks – 3.33 T12. (14) Oakland Athletics – 3.31 -- (T15) Cleveland Indians – 3.31 14. (11) Colorado Rockies – 3.30 T15. (17) Cincinnati Reds – 3.29 -- (18) Chicago White Sox – 3.29 Paul Konerko is aging like a fine wine with 21 home runs and 61 RBI through Thursday’s action. T17. (T12) Detroit Tigers – 3.24 An injury to either Justin Verlander or Max Scherzer would ruin Detroit’s chances in the American League Central. The pair has combined for 20 of the team’s 44 wins. -- (19) Toronto Blue Jays – 3.24 19. (20) New York Mets – 3.21 20. (T15) Washington Nationals – 3.20 21. (22) Pittsburgh Pirates – 3.18 22. (23) San Diego Padres – 3.15 23. (21) Seattle Mariners – 3.09 24. (24) Florida Marlins – 3.00 25. (26) Los Angeles Dodgers – 2.93 The Dodgers are always in the headlines because of owner Frank McCourt’s legal and financial issues, but Matt Kemp (.331, 22 home runs and 63 RBI) is flirting with a Triple Crown season. 26. (25) Baltimore Orioles – 2.83 27. (27) Kansas City Royals – 2.69 28. (30) Chicago Cubs – 2.57 29. (28) Houston Astros – 2.40 30. (29) Minnesota Twins – 2.21