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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Gary Sheffield# | .360 | 1988-1997 | |
| 2 | Barry Larkin# | .350 | 1986-1997 | |
| 3 | Ozzie Smith | .344 | 1978-1992 | |
| 4 | Alan Trammell* | .337 | 1977-1994 | |
| 5 | Ron Cey | .330 | 1976-1985 | |
| 6 | Tony Fernandez# | .325 | 1983-1997 | |
| 7 | Vance Law | .324 | 1980-1988 | |
| 8 | Cal Ripken Jr.# | .320 | 1981-1996 | |
| 8 | Spike Owen# | .320 | 1984-1996 | |
| 10 | Roy Smalley | .317 | 1976-1992 | |
| 10 | Dickie Thon# | .317 | 1979-1997 | |
| 12 | Scott Fletcher# | .311 | 1981-1997 | |
| 13 | Jay Bell# | .308 | 1986-1997 | |
| 14 | Omar Vizquel# | .306 | 1989-1997 | |
| 15 | Jose Oquendo# | .305 | 1984-1997 | |
| 16 | Bill Almon | .301 | 1976-1989 | |
| 17 | Robin Yount | .299 | 1976-1994 | |
| 18 | Harry Chappas | .298 | 1979-1993 | |
| 19 | Terry Pendleton# | .296 | 1985-1997 | |
| 20 | Manuel Lee# | .293 | 1985-1997 | |
| 21 | Mike Bordick# | .291 | 1990-1997 | |
| 22 | Jose Vizcaino# | .289 | 1989-1997 | |
| 23 | Dave Concepcion | .284 | 1976-1985 | |
| 24 | Bill Russell | .282 | 1976-1985 | |
| 25 | Gary Disarcina# | .281 | 1989-1997 | |
| 26 | Jose Hernandez# | .274 | 1991-1997 | |
| 27 | Roger Metzger | .264 | 1976-1988 | |
| 28 | Alvaro Espinoza# | .257 | 1984-1997 |
