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Active Leaders & Records for Range Factor/9Inn as P
+ - Indicates Hall of Famer. Bold indicates active player.
Statistic Description: Range Factor per 9 Inn 9 * (Putouts + Assists) / Innings Played
Minimum of 1000 IP, 3000 PA, 500 games (fielding), 200 stolen base attempts (catchers) or 80 stolen base attempts (baserunners only since 1951) or 100 decisions for career and active leaderboards for rate statistics.
This statistic is computed from play-by-play data which is only complete from 1974 to the present. From 1945-1973, the data is incomplete, though for most seasons only less than 20 games per season total are missing. Please see our page on data coverage for a full view of the data used to create these lists.
| Rank | Player (yrs, age) | Range Factor/9Inn as P | Throws |
|---|---|---|---|
| 1. | Javier Lopez (11, 35) | 3.175 | L |
| 2. | Mariano Rivera (19, 43) | 2.568 | R |
| 3. | Luis Ayala (9, 35) | 2.472 | R |
| 4. | J.C. Romero (14, 37) | 2.422 | L |
| 5. | Jamey Wright (18, 38) | 2.377 | R |
| 6. | Scott Downs (12, 37) | 2.358 | L |
| 7. | Derek Lowe (17, 40) | 2.271 | R |
| 8. | Jeremy Affeldt (12, 34) | 2.156 | L |
| 9. | Jesse Crain (10, 31) | 2.051 | R |
| 10. | Shawn Camp (10, 37) | 1.995 | R |
| 11. | Chad Qualls (10, 34) | 1.990 | R |
| 12. | Brandon Lyon (12, 33) | 1.944 | R |
| 13. | Ryan Dempster (16, 36) | 1.912 | R |
| 14. | Fernando Rodney (11, 36) | 1.906 | R |
| 15. | Andy Pettitte (18, 41) | 1.842 | L |
| 16. | Dennys Reyes (15, 36) | 1.808 | L |
| 17. | LaTroy Hawkins (19, 40) | 1.806 | R |
| 18. | Miguel Batista (18, 42) | 1.799 | R |
| 19. | Heath Bell (10, 35) | 1.744 | R |
| 20. | Darren Oliver (20, 42) | 1.664 | L |
| 21. | J.J. Putz (11, 36) | 1.626 | R |
| 22. | Jason Frasor (10, 35) | 1.601 | R |
| 23. | Matt Thornton (10, 36) | 1.544 | L |
| 24. | Kyle Farnsworth (15, 37) | 1.481 | R |
| 25. | Luis Vizcaino (11, 38) | 1.366 | R |
| 26. | Dan Wheeler (13, 35) | 1.320 | R |
| 27. | Francisco Rodriguez (11, 31) | 1.261 | R |
| 28. | Joe Nathan (13, 38) | 1.235 | R |
| 29. | Jon Rauch (11, 34) | 1.197 | R |
| 30. | Octavio Dotel (15, 39) | 1.136 | R |
| 31. | Kevin Gregg (11, 35) | 1.069 | R |
| 32. | Jose Valverde (11, 35) | 0.889 | R |
| 33. | Rafael Betancourt (11, 38) | 0.739 | R |
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