Range factor

Range factor

Range Factor (commonly abbreviated RF) is a baseball statistic developed by Bill James. It is calculated by dividing putouts and assists by number of innings or games played at a given defense position. The statistic is premised on the notion that the total number of outs that a player participates in is more relevant in evaluating his defensive play than the percentage of cleanly handled chances as calculated by the conventional statistic fielding percentage.

However, some positions (especially first baseman) may have substantially more putouts because of a superior infield around them, that commits fewer errors and turns many double plays, allowing them to receive credit for more putouts.

National League Leaders by Position

2007

Name Position Team RF
Todd Helton  1B Colorado Rockies 10.39
Chase Utley  2B Philadelphia Phillies 5.10
Abraham Núñez  3B Philadelphia Phillies 3.27
Troy Tulowitzki  SS Colorado Rockies 5.39
Geoff Jenkins  LF Milwaukee Brewers 2.30
Nook Logan  CF Washington Nationals 2.98
Corey Hart  RF Milwaukee Brewers 2.67
Greg Maddux  P San Diego Padres 3.18
Russell Martin  C Los Angeles Dodgers 8.25

2006

Name Position Team RF
Albert Pujols  1B St. Louis Cardinals 10.55
Jamey Carroll  2B Colorado Rockies 5.87
Scott Rolen  3B St. Louis Cardinals 3.06
Rafael Furcal  SS Los Angeles Dodgers 5.01
Alfonso Soriano  LF Washington Nationals 2.28
Carlos Beltran  CF New York Mets 2.81
Austin Kearns  RF Cincinnati Reds/Washington Nationals 2.59
Aaron Cook  P Colorado Rockies 2.84
Brad Ausmus  C Houston Astros 7.94

2005

Name Position Team RF
Albert Pujols  1B St. Louis Cardinals 11.22
Craig Counsell  2B Arizona Diamondbacks 5.53
Troy Glaus  3B Arizona Diamondbacks 3.01
Rafael Furcal  SS Atlanta Braves 5.23
Cliff Floyd  LF New York Mets 2.12
Brady Clark  CF Milwaukee Brewers 2.85
Jose Guillen  RF Washington Nationals 2.34
Tim Hudson  P Atlanta Braves 2.95
Michael Barrett  C Chicago Cubs 8.15

2004

Name Position Team RF
Albert Pujols  1B St. Louis Cardinals 10.57
Aaron Miles  2B Colorado Rockies 5.48
Vinny Castilla  3B Colorado Rockies 3.08
Jack Wilson  SS Pittsburgh Pirates 4.83
Jason Bay  LF Pittsburgh Pirates 1.97
Jay Payton  CF San Diego Padres 3.01
Brady Clark  RF Milwaukee Brewers 2.56
Kirk Rueter  P San Francisco Giants 3.26
Michael Barrett  C Chicago Cubs 9.01

2003

Name Position Team RF
Robert Fick  1B Atlanta Braves 10.38
Marcus Giles  2B Atlanta Braves 5.55
Chris Stynes  3B Colorado Rockies 3.01
Adam Everett  SS Houston Astros 4.96
Jay Payton  LF Colorado Rockies 2.22
Jim Edmonds  CF St. Louis Cardinals 3.06
Jose Cruz, Jr.  RF San Francisco Giants 2.39
Mike Hampton  P Atlanta Braves 3.17
Damian Miller  C Chicago Cubs 9.81

2002

Name Position Team RF
Kevin Young  1B Pittsburgh Pirates 10.88
Pokey Reese  2B Pittsburgh Pirates 5.86
Scott Rolen  3B Philadelphia Phillies/St. Louis Cardinals 3.10
Juan Uribe  SS Colorado Rockies 5.24
Adam Dunn  LF Cincinnati Reds 2.01
Tsuyoshi Shinjo  CF San Francisco Giants 3.12
Reggie Sanders  RF San Francisco Giants 2.39
Greg Maddux  P Atlanta Braves 3.12
Brad Ausmus  C Houston Astros 8.40

2001

Name Position Team RF
Kevin Young  1B Pittsburgh Pirates 10.20
Todd Walker  2B Cincinnati Reds/Colorado Rockies 5.09
Jeff Cirillo  3B Colorado Rockies 2.98
Orlando Cabrera  SS Montreal Expos 4.87
Cliff Floyd  LF Florida Marlins 2.06
Andruw Jones  CF Atlanta Braves 2.95
Brian Jordan  RF Atlanta Braves 2.41
Greg Maddux  P Atlanta Braves 2.82
Damian Miller  C Arizona Diamondbacks 9.63

American League Leaders by Position

2007

Name Position Team RF
Lyle Overbay  1B Toronto Blue Jays 10.75
Ian Kinsler  2B Texas Rangers 5.69
Melvin Mora  3B Baltimore Orioles 2.90
Juan Uribe  SS Chicago White Sox 4.74
Jay Payton  LF Baltimore Orioles 2.33
Coco Crisp  CF Boston Red Sox 3.07
Mark Teahen  RF Kansas City Royals 2.62
Fausto Carmona  P Cleveland Indians 2.60
Dioner Navarro  C Tampa Bay Devil Rays 8.29

2006

Name Position Team RF
Lyle Overbay  1B Toronto Blue Jays 10.58
Ian Kinsler  2B Texas Rangers 5.58
Brandon Inge  3B Detroit Tigers 3.45
Jhonny Peralta  SS Cleveland Indians 4.90
Carl Crawford  LF Tampa Bay Devil Rays 2.24
Joey Gathright  CF Kansas City Royals/Tampa Bay Devil Rays 3.06
Nick Markakis  RF Baltimore Orioles 2.42
Jake Westbrook  P Cleveland Indians 3.11
Joe Mauer  C Minnesota Twins 7.73

2005

Name Position Team RF
Kevin Millar  1B Boston Red Sox 9.97
Orlando Hudson  2B Toronto Blue Jays 5.84
Brandon Inge  3B Detroit Tigers 3.26
Julio Lugo  SS Tampa Bay Devil Rays 4.94
Carl Crawford  LF Tampa Bay Devil Rays 2.49
Jeremy Reed  CF Seattle Mariners 3.05
Ichiro Suzuki  RF Seattle Mariners 2.53
Jake Westbrook  P Cleveland Indians 3.42
Jason Kendall  C Oakland Athletics 7.26

2004

Name Position Team RF
Carlos Delgado  1B Toronto Blue Jays 9.78
Orlando Hudson  2B Toronto Blue Jays 5.80
Eric Chavez  3B Oakland Athletics 3.10
Miguel Tejada  SS Baltimore Orioles 5.00
Carl Crawford  LF Tampa Bay Devil Rays 2.49
Rocco Baldelli  CF Tampa Bay Devil Rays 3.03
Ichiro Suzuki  RF Seattle Mariners 2.46
Jake Westbrook  P Cleveland Indians 3.05
Jason Varitek  C Boston Red Sox 7.87

2003

Name Position Team RF
Carlos Delgado  1B Toronto Blue Jays 10.26
Orlando Hudson  2B Toronto Blue Jays 5.84
Eric Chavez  3B Oakland Athletics 3.16
Julio Lugo  SS Tampa Bay Devil Rays 4.80
Carl Crawford  LF Tampa Bay Devil Rays 2.55
Mike Cameron  CF Seattle Mariners 3.42
Ichiro Suzuki  RF Seattle Mariners 2.30
Derek Lowe  P Boston Red Sox 2.88
Jorge Posada  C New York Yankees 7.79

2002

Name Position Team RF
Carlos Pena  1B Detroit Tigers/Oakland Athletics 9.95
Adam Kennedy  2B Anaheim Angels 5.18
Eric Chavez  3B Oakland Athletics 3.00
Mike Bordick  SS Baltimore Orioles 5.07
Jacque Jones  LF Minnesota Twins 2.60
Darin Erstad  CF Anaheim Angels 3.39
Ichiro Suzuki  RF Seattle Mariners 2.33
Cory Lidle  P Oakland Athletics 2.67
Jason Varitek  C Boston Red Sox 8.17

2001

Name Position Team RF
Carlos Delgado  1B Toronto Blue Jays 10.15
Jerry Hairston, Jr.  2B Baltimore Orioles 5.27
Eric Chavez  3B Oakland Athletics 2.91
Alex S. Gonzalez  SS Toronto Blue Jays 4.97
Bobby Higginson  LF Detroit Tigers 2.45
Torii Hunter  CF Minnesota Twins 3.29
Ichiro Suzuki  RF Seattle Mariners 2.35
Freddy Garcia  P Seattle Mariners 2.56
Matt LeCroy  C Minnesota Twins 8.49

All Time Single Season Leaders

NOTE: All time single season leaders are listed according to Range Factor by games played (A + PO) / G. Yearly leaders listed above from 2001 - present are listed according to Range Factor per nine innings 9 * (A + PO)/ Inn. Because the latter statistic is unavailable for older players, the former figure is used below to ensure use of comparable data for the all time single season leaders. The figures set forth below are verified from Baseball-Reference.com

First Base (minimum 80 games)

  1. Jiggs Donahue: 12.65 (Chicago White Sox, 1907)
  2. Jiggs Donahue: 12.35 (Chicago White Sox, 1908)
  3. Phil Todt: 12.21 (Boston Red Sox, 1926)
  4. George Burns: 12.10 (Detroit Tigers, 1914)
  5. Stuffy McInnis: 12.10 (Boston Red Sox, 1918)

Second Base (minimum 80 games)

  1. Fred Pfeffer: 7.29 (Chicago White Stockings, 1884)
  2. Jack Burdock: 7.18 (Boston Red Caps, 1879)
  3. Joe Quest: 7.16 (Chicago White Stockings, 1879)
  4. Pop Smith: 7.13 (Pittsburg Alleghenys, 1885)
  5. Bid McPhee: 7.09 (Cincinnati Red Stockings, 1886)
  6. Frankie Frisch: 6.78 (St. Louis Cardinals, 1927)

Shortstop (minimum 80 games)

  1. Hughie Jennings: 6.73 (Baltimore Orioles, 1895)
  2. George Davis: 6.69 (New York Giants, 1899)
  3. Dave Bancroft: 6.62 (Philadelphia Phillies, 1918)
  4. Hughie Jennings: 6.56 (Baltimore Orioles, 1896)
  5. Hughie Jennings: 6.55 (Baltimore Orioles, 1897)

Third Base (minimum 80 games)

  1. Billy Shindle: 4.34 (Baltimore Orioles, 1892)
  2. Jumbo Davis: 4.33 (Kansas City Cowboys, 1888)
  3. Bill Alvord: 4.31 (Cleveland Spiders/Washington Statesmen, 1891)
  4. Bill Bradley: 4.29 (Chicago Orphans, 1900)
  5. Jimmy Collins: 4.26 (Boston Beaneaters, 1896)

Pitcher (minimum 250 innings pitched)

  1. Harry Howell: 5.24 (St. Louis Browns, 1905)
  2. Harry Howell: 4.97 (St. Louis Browns, 1904)
  3. Ed Walsh: 4.68 (Chicago White Sox, 1907)
  4. Will White: 4.56 (Cincinnati Red Stockings, 1882)
  5. George Mullin: 4.24 (Detroit Tigers, 1904)
  6. Nick Altrock: 4.21 (Chicago White Sox, 1905)
  7. Tony Mullane: 4.20 (Louisville Eclipse, 1882)
  8. Willie Sudhoff: 4.19 (St. Louis Browns, 1904)
  9. Red Donahue: 4.14 (St. Louis Browns, 1902)
  10. Nick Altrock: 4.13 (Chicago White Sox, 1904)

Catcher (minimum 80 games)

  1. Damian Miller: 8.89 (Chicago Cubs, 2003)
  2. Damian Miller: 8.64 (Arizona Diamondbacks, 2001)
  3. Barney Gilligan: 8.63 (Providence Grays, 1884)
  4. Michael Barrett: 8.32 Chicago Cubs, 2004)
  5. Duffy Dyer: 8.25 (New York Mets, 1972)
  6. Javy López: 8.17 (Atlanta Braves, 1998)
  7. Joe Azcue: 8.06 (Cleveland Indians, 1967)
  8. Mike Piazza: 8.05 (Los Angeles Dodgers, 1997)
  9. Johnny Edwards: 8.04 (Houston Astros, 1969)
  10. Johnny Edwards: 8.03 (Cincinnati Reds, 1964)

Right Field (minimum 80 games)

  1. Babe Herman: 2.81 (Cincinnati Reds, 1932)
  2. Harry Heilmann: 2.78 (Cincinnati Reds, 1930)
  3. Paul Waner: 2.68 (Pittsburgh Pirates, 1931)
  4. Al Kaline: 2.63 (Detroit Tigers, 1961)
  5. Dave Parker: 2.63 (Pittsburgh Pirtes, 1977)
  6. Chuck Klein: 2.60 (Philadelphia Phillies, 1930)
  7. Roberto Clemente: 2.58 (Pittsburgh Pirates, 1957)
  8. Dwight Evans: 2.57 (Boston Red Sox, 1975)
  9. Tony Armas: 2.53 (Oakland Athletics, 1982)

Center Field (minimum 80 games)

  1. Taylor Douthit: 3.62 (St. Louis Cardinals, 1928)
  2. Richie Ashburn: 3.59 (Philadelphia Phillies, 1951)
  3. Thurman Tucker: 3.55 (Chicago White Sox, 1944)
  4. Kirby Puckett: 3.55 (Minnesota Twins, 1984)
  5. Chet Lemon: 3.52 (Chicago White Sox, 1977)
  6. Irv Noren: 3.45 (Washington Senators, 1951)
  7. Richie Ashburn: 3.42 (Philadelphia Phillies, 1949)
  8. Carden Gillenwater: 3.39 (Boston Braves, 1945)
  9. Sam West: 3.38 (St. Louis Browns, 1935)
  10. Richie Ashburn: 3.34 (Philadelphia Phillies, 1956)

Left Field (minimum 80 games)

  1. Rickey Henderson 3.12 (Oakland Athletics, 1981)
  2. Ed Delahanty: 2.98 (Philadelphia Phillies, 1893)
  3. Joe Vosmik: 2.90 (Cleveland Indians, 1932)
  4. Ed Delahanty: 2.83 (Philadelphia Phillies, 1896)
  5. Fred Clarke: 2.76 (Louisville Colonels, 1895)
  6. Charlie Jamieson: 2.74 (Cleveland Indians, 1928)
  7. Goose Goslin: 2.73 (Washington Senators, 1925)
  8. Bobby Veach: 2.72 (Detroit Tigers, 1921)
  9. Elmer Valo: 2.69 (Philadelphia Athletics, 1949)
  10. Al Simmons: 2.67 (Chicago White Sox, 1933)
  11. Ben Oglivie: 2.64 (Milwaukee Brewers, 1980)

Sources

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