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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 1948-1973, 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 (10, 34) | 3.205 | L |
| 2. | Mariano Rivera (18, 42) | 2.590 | R |
| 3. | J.C. Romero (14, 36) | 2.422 | L |
| 4. | Jamey Wright (17, 37) | 2.368 | R |
| 5. | Livan Hernandez (17, 37) | 2.292 | R |
| 6. | Derek Lowe (16, 39) | 2.275 | R |
| 7. | Jeremy Affeldt (11, 33) | 2.133 | L |
| 8. | Jamie Moyer (25, 49) | 2.039 | L |
| 9. | Shawn Camp (9, 36) | 1.988 | R |
| 10. | Brandon Lyon (11, 32) | 1.934 | R |
| 11. | Ryan Dempster (15, 35) | 1.929 | R |
| 12. | Chad Qualls (9, 33) | 1.920 | R |
| 13. | Jason Isringhausen (16, 39) | 1.840 | R |
| 14. | Andy Pettitte (17, 40) | 1.828 | L |
| 15. | LaTroy Hawkins (18, 39) | 1.816 | R |
| 16. | Miguel Batista (18, 41) | 1.799 | R |
| 17. | Heath Bell (9, 34) | 1.732 | R |
| 18. | Darren Oliver (19, 41) | 1.654 | L |
| 19. | Jason Frasor (9, 34) | 1.620 | R |
| 20. | J.J. Putz (10, 35) | 1.614 | R |
| 21. | Hector Carrasco (12, 42) | 1.611 | R |
| 22. | Guillermo Mota (14, 38) | 1.597 | R |
| 23. | Francisco Cordero (14, 37) | 1.561 | R |
| 24. | Ricardo Rincon (11, 42) | 1.542 | L |
| 25. | Matt Thornton (9, 35) | 1.491 | L |
| 26. | Kyle Farnsworth (14, 36) | 1.484 | R |
| 27. | Dan Wheeler (13, 34) | 1.320 | R |
| 28. | Ron Mahay (15, 41) | 1.299 | L |
| 29. | Francisco Rodriguez (11, 30) | 1.261 | R |
| 30. | Joe Nathan (12, 37) | 1.213 | R |
| 31. | Brian Fuentes (12, 36) | 1.203 | L |
| 32. | Jon Rauch (10, 33) | 1.152 | R |
| 33. | Octavio Dotel (14, 38) | 1.132 | R |
| 34. | Kevin Gregg (10, 34) | 1.071 | R |
| 35. | Brad Lidge (11, 35) | 1.059 | R |
| 36. | Jose Valverde (10, 34) | 0.884 | R |
| 37. | Rafael Betancourt (10, 37) | 0.714 | R |
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