Return to Opsera Database Is there an objective way to determine the worst teams of all-time? Using the Opsera system, which is a statistic that takes both OPS and ERA into account, we get a definitive list. 1. Philadelphia Athletics, 1936: 1.02 2. Detroit Tigers, 1996: 1.04 3. St. Louis Browns, 1939: 1.16 4. Philadelphia Athletics, 1933: 1.19 5. Philadelphia Athletics, 1954: 1.27 6. St. Louis Browns, 1936: 1.33 7. Detroit Tigers, 2003: 1.45 8. St. Louis Browns, 1937: 1.45 9. Pittsburgh Pirates, 1953: 1.49 10. Philadelphia Phillies, 1938: 1.50 11. Philadelphia Phillies, 1939: 1.51 12. Philadelphia Phillies, 1930: 1.52 13. St. Louis Browns, 1951: 1.54 14. Philadelphia Athletics, 1939: 1.55 15. Chicago White Sox, 1934: 1.56 16. Philadelphia Phillies, 1928: 1.57 17. Chicago White Sox, 1948: 1.60 18. Boston Red Sox, 1932: 1.61 19. Pittsburgh Pirates, 1952: 1.63 20. Florida Marlins, 1998: 1.66 21. Kansas City Athletics, 1955: 1.67 22. Kansas City Royals, 2005: 1.67 23. Philadelphia Phillies, 1945: 1.68 24. Philadelphia Phillies, 1927: 1.68 25. St. Louis Browns, 1938: 1.70 26. Oakland Athletics, 1979: 1.73 27. New York Mets, 1962: 1.74 28. San Diego Padres, 1974: 1.74 29. Tampa Bay Devil Rays, 2002: 1.75 30. Philadelphia Athletics, 1950: 1.76 31. Washington Senators, 1949: 1.76 32. Boston Braves, 1935: 1.78 33. Kansas City Royals, 2006: 1.78 34. Detroit Tigers, 1995: 1.79 35. Philadelphia Athletics, 1915: 1.79 36. Philadelphia Phillies, 1942: 1.81 37. Pittsburgh Pirates, 1954: 1.81 38. St. Louis Browns, 1953: 1.82 39. Washington Senators, 1956: 1.82 40. Boston Braves, 1911: 1.83 41. Philadelphia Athletics, 1943: 1.83 42. Boston Braves, 1924: 1.84 43. Minnesota Twins, 1995: 1.84 44. New York Mets, 1963: 1.84 45. Philadelphia Phillies, 1941: 1.85 46. St. Louis Browns, 1950: 1.85 47. Washington Senators, 1948: 1.85 48. San Diego Padres, 1969: 1.86 49. Detroit Tigers, 2002: 1.87 50. Philadelphia Athletics, 1942: 1.87 51. Boston Red Sox, 1926: 1.88 52. Philadelphia Phillies, 1940: 1.89 53. Toronto Blue Jays, 1979: 1.89 54. Detroit Tigers, 1953: 1.90 55. Washington Senators, 1957: 1.91 56. St. Louis Browns, 1949: 1.92 57. Philadelphia Athletics, 1938: 1.93 58. Washington Senators, 1904: 1.93 59. Boston Braves, 1929: 1.94 60. New York Mets, 1965: 1.94 61. Minnesota Twins, 1994: 1.96 62. Philadelphia Phillies, 1923: 1.96 63. Philadelphia Athletics, 1940: 1.97 64. St. Louis Browns, 1933: 1.98 65. Boston Red Sox, 1925: 1.99 66. California Angels, 1994: 1.99 67. Kansas City Athletics, 1956: 1.99 68. Boston Red Sox, 1927: 2.00 69. Kansas City Athletics, 1961: 2.00 70. Kansas City Royals, 2002: 2.00 71. St. Louis Browns, 1935: 2.00 72. Washington Senators, 1947: 2.00 73. Pittsburgh Pirates, 2001: 2.01 74. Washington Senators, 1963: 2.01 75. Washington Senators, 1903: 2.01 76. Colorado Rockies, 1993: 2.02 77. Philadelphia Phillies, 1961: 2.02 78. Boston Red Sox, 1931: 2.03 79. Chicago White Sox, 1932: 2.03 80. St. Louis Cardinals, 1913: 2.03 81. Cincinnati Reds, 2003: 2.04 82. Kansas City Royals, 1998: 2.04 83. Philadelphia Athletics, 1919: 2.04 84. Arizona Diamondbacks, 2004: 2.05 85. Kansas City Royals, 2004: 2.05 86. Seattle Mariners, 1978: 2.06 87. Boston Red Sox, 1930: 2.07 88. Minnesota Twins, 1999: 2.07 89. Baltimore Orioles, 1988: 2.08 90. Seattle Mariners, 1977: 2.08 91. Washington Senators, 1958: 2.09 92. Washington Senators, 1955: 2.09 93. Washington Senators, 1935: 2.09 94. Oakland Athletics, 1997: 2.10 95. Atlanta Braves, 1977: 2.11 96. Baltimore Orioles, 1955: 2.12 97. Chicago Cubs, 1947: 2.12 98. Cleveland Indians, 1971: 2.12 99. Toronto Blue Jays, 1978: 2.12 100. Tampa Bay Devil Rays, 2001: 2.13 Return to Opsera Database