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| Progressive On-Base Pct Leaderboard | |
| This table is a snapshot of the career, single-season, active, and yearly leaders at the end of each season. | |
| * - Indicates Hall of Fame
+ - indicates hit-less at-bats added to meet 446PA requirement. Bold - Indicates active player |
| Year | Career | OBP | Single-Season | OBP | Active | OBP | Yearly | OBP |
| 1952 | Scott Perrotta | .4660 | Scott Perrotta | .4660 | ||||
| 1953 | Scott Perrotta | .4660 | Arnold Keener | .4600 | ||||
| 1954 | Scott Perrotta | .4660 | Osvaldo Paredes | .4586 | ||||
| 1955 | Scott Perrotta | .4660 | Pedro Savino | .4547 | ||||
| For questions or to report errors, please send us a note. |