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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OOPS | YEAR | Open Postseason Career Leaderboard |
|---|---|---|---|---|
| 1 | Vinegar Bend Mizell# | .3849 | 1994 | |
| 2 | Christy Mathewson# | .4096 | 1997 | |
| 3 | Jose DeLeon | .4111 | 1989 | |
| 4 | Mark W Davis | .4321 | 1986 | |
| 5 | Roger Clemens# | .4363 | 1982 | |
| 6 | John Denny | .4445 | 1987 | |
| 7 | Pete Vuckovich | .4462 | 1981 | |
| 8 | Dennis Eckersley | .4534 | 1981 | |
| 9 | Jack McDowell | .4596 | 1986 | |
| 10 | Nolan Ryan | .4607 | 1983 | |
| 11 | Patrick Corbin | .4619 | 1985 | |
| 12 | Vinegar Bend Mizell# | .4655 | 1990 | |
| 13 | Don Robinson | .4791 | 1980 | |
| 14 | Happy Townsend# | .4860 | 1984 | |
| 15 | Mario Soto | .4922 | 1983 | |
| 16 | Ed Brandt# | .4934 | 1989 | |
| 17 | Fernando Valenzuela* | .4988 | 1983 | |
| 18 | Frank Tanana | .5011 | 1986 | |
| 19 | Jim Beattie | .5013 | 1984 | |
| 20 | Storm Davis# | .5036 | 1996 | |
| 21 | Mike Scott | .5102 | 1986 | |
| 22 | Paul Derringer# | .5129 | 1999 | |
| 23 | Mario Soto | .5148 | 1982 | |
| 24 | Fernando Valenzuela* | .5201 | 1986 | |
| 25 | LaMarr Hoyt | .5211 | 1987 | |
| 26 | Fernando Valenzuela* | .5228 | 1985 | |
| 27 | Bill Wise# | .5254 | 1990 | |
| 28 | Al Orth# | .5263 | 1993 | |
| 29 | Scott McGregor | .5316 | 1981 | |
| 30 | Jose DeLeon | .5338 | 1987 | |
| 31 | J R Richard | .5368 | 1984 | |
| 32 | Jerry Reuss | .5383 | 1981 | |
| 33 | Patrick Corbin | .5394 | 1984 | |
| 34 | Bob Knepper | .5447 | 1986 | |
| 35 | Harry C. Harper# | .5456 | 1997 | |
| 36 | Burt Hooton | .5459 | 1982 | |
| 37 | Hal Newhouser# | .5518 | 1999 | |
| 38 | Britt Burns | .5547 | 1985 | |
| 39 | Steve Trout | .5560 | 1980 | |
| 40 | Happy Townsend# | .5565 | 1992 | |
| 41 | Dennis Martinez | .5590 | 1988 | |
| 42 | Al Mamaux# | .5602 | 1999 | |
| 43 | Bob Welch | .5604 | 1987 | |
| 44 | Mario Soto | .5611 | 1981 | |
| 45 | Jim Bunning# | .5640 | 1999 | |
| 46 | Bill Wise# | .5658 | 1991 | |
| 47 | Fernando Valenzuela* | .5673 | 1984 | |
| 48 | Pedro Ramos# | .5687 | 1990 | |
| 49 | Don Robinson | .5689 | 1984 | |
| 50 | Patrick Corbin | .5766 | 1989 | |
| 51 | Tommy Bond# | .5800 | 1997 | |
| 51 | Masahiro Tanaka | .5800 | 1986 | |
| 53 | Scott Sanderson | .5809 | 1981 | |
| 54 | Scott T Baker | .5811 | 1989 | |
| 55 | Roger Clemens# | .5814 | 1984 | |
| 56 | Mario Soto | .5817 | 1985 | |
| 57 | Tommy Bond# | .5820 | 1996 | |
| 58 | Rudy May | .5850 | 1982 | |
| 59 | Frank Browning# | .5875 | 1992 | |
| 60 | Kenta Maeda | .5912 | 1987 | |
| 61 | Rick Rhoden | .5950 | 1983 | |
| 62 | Scott Sanderson | .5965 | 1980 | |
| 63 | Arlie Pond# | .5977 | 1996 | |
| 64 | Pascual Perez | .5986 | 1988 | |
| 65 | Bruce Berenyi | .5999 | 1984 | |
| 66 | Fernando Valenzuela* | .6014 | 1982 | |
| 67 | Bert Inks# | .6022 | 1997 | |
| 68 | Moose Haas | .6031 | 1985 | |
| 69 | Van Mungo# | .6032 | 1994 | |
| 70 | Heinie Berger# | .6070 | 1996 | |
| 71 | Steve Trout | .6072 | 1981 | |
| 72 | Bruce Berenyi | .6083 | 1983 | |
| 73 | Mike Krukow | .6085 | 1983 | |
| 74 | Scott T Baker | .6086 | 1988 | |
| 75 | Nolan Ryan | .6102 | 1986 | |
| 76 | Van Mungo# | .6114 | 1996 | |
| 77 | Pascual Perez | .6115 | 1985 | |
| 78 | Rick Sutcliffe | .6118 | 1985 | |
| 79 | Bill Wise# | .6120 | 1992 | |
| 80 | Lefty Grove# | .6121 | 1989 | |
| 81 | Jose DeLeon | .6129 | 1984 | |
| 82 | Kevin Appier# | .6132 | 1990 | |
| 83 | Dave Righetti# | .6139 | 1994 | |
| 84 | Jim Bunning# | .6144 | 1998 | |
| 85 | Fernando Valenzuela* | .6172 | 1987 | |
| 86 | Frank Browning# | .6182 | 1994 | |
| 87 | John Tudor | .6192 | 1988 | |
| 88 | Ben Sheets# | .6215 | 1993 | |
| 89 | Doyle Alexander | .6220 | 1987 | |
| 90 | Lefty Grove# | .6225 | 1987 | |
| 91 | Bob Knepper | .6239 | 1983 | |
| 92 | Patrick Corbin | .6262 | 1990 | |
| 93 | Jack Morris | .6264 | 1987 | |
| 94 | Jordan M Zimmermann# | .6276 | 1993 | |
| 95 | David Palmer | .6288 | 1988 | |
| 96 | Bob Stoddard | .6310 | 1987 | |
| 97 | Patrick Corbin | .6312 | 1987 | |
| 98 | Masahiro Tanaka | .6314 | 1988 | |
| 99 | Bob Ojeda | .6342 | 1988 | |
| 100 | John Candelaria | .6345 | 1981 |
