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| First Basemen Single-Season Fielding Pct Leaderboard | |
| * - Indicates Hall of Fame |
| Rank | Player | Fielding Pct | IP | Year | |
| 1. | Jim Tray | .9928 | 1238.7 | 1884 | |
| 2. | Harry Stovey | .9907 | 1340.3 | 1884 | |
| 3. | John Morrill | .9883 | 1322.7 | 1884 | |
| 4. | Dan Brouthers | .9881 | 1291.3 | 1884 | |
| 5. | Sid Farrar | .9880 | 1138.3 | 1884 | |
| 6. | Roger Connor | .9872 | 1077.0 | 1884 | |
| 7. | Charlie Comiskey | .9871 | 1201.3 | 1884 | |
| 8. | Dave Orr | .9862 | 1362.7 | 1884 | |
| 9. | Martin Powell | .9859 | 1298.3 | 1884 | |
| 10. | John Reilly | .9857 | 1345.3 | 1884 | |
| 11. | Wally Andrews | .9838 | 1366.0 | 1884 | |
| 12. | Ed Swartwood | .9814 | 1322.3 | 1884 |
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