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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | WHIP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Tim McDonald# | 1.06 | 1961 | |
| 1 | Jackie Richardson# | 1.06 | 1962 | |
| 3 | Tim McDonald# | 1.08 | 1960 | |
| 4 | Roger Craig# | 1.10 | 1961 | |
| 5 | Mike Scharlau# | 1.18 | 1960 | |
| 6 | Single A Placeholder# | 1.25 | 1962 | |
| 7 | Steve Gilmore# | 1.27 | 1962 | |
| 8 | Chet Lee# | 1.28 | 1961 | |
| 9 | Single A Placeholder# | 1.30 | 1962 | |
| 10 | Rafael Velasquez# | 1.34 | 1962 | |
| 11 | Single A Placeholder# | 1.35 | 1962 | |
| 12 | Single A Placeholder# | 1.37 | 1962 | |
| 13 | Single A Placeholder# | 1.39 | 1962 | |
| 14 | Single A Placeholder# | 1.40 | 1962 | |
| 15 | Single A Placeholder# | 1.42 | 1962 | |
| 15 | Single A Placeholder# | 1.42 | 1962 | |
| 17 | Single A Placeholder# | 1.45 | 1962 | |
| 18 | Bob Hill# | 1.49 | 1962 | |
| 19 | Single A Placeholder# | 1.50 | 1962 | |
| 20 | Single A Placeholder# | 1.51 | 1962 | |
| 21 | Single A Placeholder# | 1.52 | 1962 | |
| 22 | Single A Placeholder# | 1.61 | 1962 |
