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 16th’s games: Last week’s ranking is in parenthesizes 1. (2) New York Yankees – 4.42 The Yankees have baseball's third-best record, but they hold a significant lead in our rankings thanks to their supreme hitting and surprising pitching. 2. (5) Philadelphia Phillies – 3.97 Philadelphia has won seven straight as their hitting as started to come around. 3. (7) Boston Red Sox – 3.92 The Red Sox are hunting for the top spot in our rankings after occupying the 21st spot a little more than a month ago. 4. (4) Atlanta Braves – 3.84 5. (6) Milwaukee Brewers – 3.74 6. (1) St. Louis Cardinals – 3.64 A six-game losing streak has the Cardinals sliding down five spots to sixth, the lowest they've been in our rankings all season. 7. (10) Arizona Diamondbacks – 3.55 8. (3) Texas Rangers – 3.48 9. (9) Los Angeles Angels – 3.46 T10. (11) San Francisco Giants – 3.45 -- (15) Colorado Rockies – 3.45 12. (17) Detroit Tigers – 3.41 The Tigers are in first place in the AL Central, having survived Cleveland's early surge. Their hitting is better than their pitching, but both have been strong as of late. 13. (T13) Tampa Bay Rays – 3.29 14. (21) Cincinnati Reds – 3.22 The Reds have won four of five, but have a rough interleague slate coming up with the Blue Jays, Yankees, Orioles, Rays and Indians on the schedule. T15. (8) Toronto Blue Jays – 3.20 With the Yankees and Red Sox on the upswing, the Rays are falling behind in the AL East. A four-game series against New York right before the All-Star break could make-or-break their season. -- (16) Pittsburgh Pirates – 3.20 -- (23) Washington Nationals – 3.20 18. (T18) Chicago White Sox – 3.18 19. (T18) Oakland Athletics – 3.15 20. (24) New York Mets – 3.12 21. (20) San Diego Padres – 3.11 22. (12) Cleveland Indians – 3.10 As expected, the Indians have officially returned to Earth. They have lost eleven of their last fourteen games and they have tough NL opponents coming up. 23. (T13) Florida Marlins – 3.04 24. (22) Seattle Mariners – 2.98 25. (26) Baltimore Orioles – 2.83 26. (25) Los Angeles Dodgers – 2.80 27. (27) Kansas City Royals – 2.65 28. (28) Chicago Cubs – 2.38 29. (29) Houston Astros – 2.37 30. (30) Minnesota Twins – 2.31 The Twins still have one of baseball's worst records and they haven't gotten out of our last spot all season, but they are showing signs. They have won eleven of thirteen, Joe Mauer will be in the lineup on Friday and they added 25 points to their Opsera total this past week.