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 Wednesday, September 28th games: The rankings from last week are in parenthesizes. 1. (2) Texas Rangers - 4.21 For the first time in months, a team other than the Yankees sits in first place. The Rangers would love to send New York packing in the ALCS for a second straight year. T2. (1) New York Yankees - 4.15 With nothing to play for, the Yankees saw their Opsera total take a hit (-0.06) over the final week of the season. -- (3) Philadelphia Phillies - 4.15 The Phillies played spoiler, keeping the rival Braves from the playoffs with an extra-inning win on Wednesday night. Hunter Pence could become an October hero. 4. (5) St. Louis Cardinals - 3.92 The Cardinals, who have already locked up Lance Berkman for another season, may have increased their chances of re-signing Albert Pujols by getting into the postseason. 5. (4) Boston Red Sox - 3.90 They were not the only team to collapse down the stretch, but the Boston market and their huge payroll make their slide one of the most intriguing in sports history. 6. (6) Milwaukee Brewers - 3.87 Like St. Louis, Milwaukee is trying to enjoy additional time with their slugging first baseman. 7. (8) Detroit Tigers - 3.69 No team, not even the Yankees, wants to face the possibility of seeing Justin Verlander multiple times in a postseason series. 8. (9) Tampa Bay Rays - 3.66 Evan Longoria entered not only Rays lore, but baseball history with his walk-off home run that gave his team the American League Wild Card. 9. (7) Los Angeles Angels - 3.57 Pitching was not the problem for the Angels, who may not even need to add firepower to their offense if their young hitters continue to grow in the offseason. 10. (12) Arizona Diamondbacks - 3.56 The lowest-ranking playoff club in our end-of-season rankings, the Diamondbacks have the moxie to beat more talented teams in October. 11. (10) San Francisco Giants - 3.51 12. (11) Atlanta Braves - 3.47 13. (13) Los Angeles Dodgers - 3.43 14. (14) Washington Nationals - 3.33 15. (15) Cincinnati Reds - 3.18 T16. (16) Florida Marlins - 3.11 -- (17) San Diego Padres - 3.11 18. (18) Oakland Athletics - 3.09 19. (19) New York Mets - 3.06 20. (24) Kansas City Royals - 3.00 21. (22) Toronto Blue Jays - 2.98 T22. (21) Chicago White Sox - 2.96 -- (23) Colorado Rockies - 2.96 24. (20) Cleveland Indians - 2.91 25. (25) Chicago Cubs - 2.82 26. (26) Pittsburgh Pirates - 2.72 27. (27) Seattle Mariners - 2.50 28. (29) Baltimore Orioles - 2.40 29. (28) Houston Astros - 2.33 30. (30) Minnesota Twins - 2.08