| Year
| Champion
| Batting Champion
| Home Run Leader
| ERA Champion
|
| 1939 | Twin Falls Cowboys | | 58 - Tony Robello, Pocatello |
|
| 1940 | Ogden Reds
|
| 1941 | Ogden Reds
|
| 1942 | Pocatello Cardinals
|
| 1946 | Salt Lake City Bees | | | 1.52 - Bob Chesnes, Salt Lake City
|
| 1947 | Twin Falls Cowboys
|
| 1948 | Twin Falls Cowboys
|
| 1949 | Pocatello Cardinals
|
| 1950 | Billings Mustangs
|
| 1951 | Great Falls Electrics
|
| 1952 | Idaho Falls Russets
|
| 1953 | Salt Lake City Bees | .416 - Oscar Sardinas, Great Falls
|
| 1954 | Great Falls Electrics
|
| 1955 | Magic Valley Cowboys
|
| 1956 | Boise Braves
|
| 1957 | Billings Mustangs
|
| 1958 | Boise Braves
|
| 1959 | Billings Mustangs
|
| 1960 | Boise Braves
|
| 1961 | Great Falls Electrics
|
| 1962 | Billings Mustangs
|
| 1963 | Idaho Falls Yankees
|
| 1964 | Treasure Valley Cubs | .311 - Juan Joa, Magic Valley | 12 - Johnny Smith, Pocatello | 2.13 - Paul Symeon, Treasure Valley
|
| 1965 | Treasure Valley Cubs | .378 - Donald Anderson, Idaho Falls | 15 - Gary Cortopassi, Treasure Valley | 2.54 - Billy Patrick, Magic Valley
|
| 1966 | Ogden Dodgers | .322 - Richard Thompson, Ogden | 11 - Frederick Rodriguez, Treasure Valley; Paul Campbell, Idaho Falls | 1.75 - Dennis James, Ogden
|
| 1967 | Ogden Dodgers | .338 - Gary Pinnow, Salt Lake City | 7 - John Lung, Caldwell | 1.82 - Craig Baker, Idaho Falls
|
| 1968 | Ogden Dodgers | .344 - Bill Buckner, Ogden | 20 - Steve Garvey, Ogden | 1.43 - Bruce Ellingsen, Ogden
|
| 1969 | Ogden Dodgers | .354 - Gilbert Vidrio, Salt Lake City | 10 - Pedro Garcia, Billings | 1.15 - John Sielicki, Great Falls
|
| 1970 | Idaho Falls Angels | .369 - Morris Nettles, Idaho Falls | 12 - Marc Mengo, Magic Valley | 1.95 - Dick Lange, Idaho Falls
|
| 1971 | Great Falls Giants | .351 - Steve Stroughter, Great Falls | 14 - John Balaz, Idaho Falls | 1.89 - James Officer, Idaho Falls
|
| 1972 | Billings Mustangs | .342 - Kenzie Davis, Billings | 11 - Randolph Wilson, Idaho Falls | 1.71 - Thomas O'Donnell, Great Falls
|
| 1973 | Billings Mustangs | .354 - Tony Cabrera, Great Falls | 10 - Philip Robinson, Billings | 1.50 - Pete Falcone, Great Falls
|
| 1974 | Idaho Falls Angels | .344 - William Taylor, Idaho Falls | 8 - Steve Henderson, Billings; Daniel Daniel, Ogden | 1.14 - John Roslund, Idaho Falls
|
| 1975 | Great Falls Giants | .347 - Richard Brewster, Idaho Falls | 13 - Andre Dawson, Lethbridge | 1.89 - Carlos Perez, Idaho Falls
|
| 1976 | Great Falls Giants | .370 - John Scoras, Lethbridge | 13 - John Scoras, Lethbridge | 1.53 - Lawrence Frakes, Billings
|
| 1977 | Lethbridge Dodgers | .376 - James Reeves, Calgary | 21 - Michael Zouras, Lethbridge | 3.36 - Scott Budner, Great Falls
|
| 1978 | Billings Mustangs | .462 - Gary Redus, Billings | 20 - Edward Packer, Idaho Falls | 1.97 - Richard Morgan, Medicine Hat
|
| 1979 | Lethbridge Dodgers | .385 - Joseph Bruno, Helena | 20 - Willie Darkis, Helena | 1.12 - Rich Rodas, Lethbridge
|
| 1980 | Lethbridge Dodgers | .376 - Randy Ready, Butte | 9 - Gerald Miller, Butte | 1.58 - Mark Dempsey, Great Falls
|
| 1981 | Butte Copper Kings | .403 - Eric Peyton, Butte | 10 - Thomas Fettig, Calgary; Glen Stacheit, Calgary | 1.54 - Sid Fernandez, Lethbridge
|
| 1982 | Medicine Hat Blue Jays | .379 - Jeffrey Neuzil, Butte | 20 - Cecil Fielder, Butte | 1.12 - Todd Fischer, Idaho Falls
|
| 1983 | Billings Mustangs | .391 - Victor Davila, Butte | 20 - Thomas Krupa, Calgary | 2.21 - Hubert Kemp, Billings
|
| 1984 | Helena Gold Sox | .402 - Jack Daugherty, Helena | 17 - Darryl Landrum, Medicine Hat | 2.56 - Clay Daniel, Billings
|
| 1985 | Salt Lake City Trappers | .447 - Todd Brown, Helena | 11 - Peter Callas, Idaho Falls | 1.32 - Robert Lopez, Billings
|
| 1986 | Salt Lake City Trappers | .391 - Darryl Hamilton, Helena | 16 - Greg Vaughn, Helena; Jeffrey Weiss, Idaho Falls | 1.60 - Joseph Lazor, Billings
|
| 1987 | Salt Lake City Trappers | .417 - Mathis Huff, Salt Lake City | 12 - Michael Malinak, Salt Lake City | 1.98 - Samuel Chavez, Billings
|
| 1988 | Great Falls Dodgers | .391 - Rob Maurer, Butte | 17 - Armando Verdugo, Salt Lake City | 2.20 - Sean Sedeker, Great Falls
|
| 1989 | Great Falls Dodgers | .359 - Barry Winford, Butte | 13 - Ramces Guererro, Idaho Falls | 1.25 - Robert Taylor, Pocatello
|
| 1990 | Great Falls Dodgers | .358 - David Hulse, Butte | 13 - Mike Busch, Great Falls | 2.57 - William Ambos, Salt Lake City
|
| 1991 | Salt Lake City Trappers | .373 - Andy Fairman, Helena | 11 - Rick Hirtensteiner, Salt Lake City | 1.71 - John Gilligan, Salt Lake City
|
| 1992 | Billings Mustangs | .357 - Tim Clark, Salt Lake City | 16 - Tim Unroe, Helena | 1.46 - Scott Karl, Helena
|
| 1993 | Billings Mustangs | .358 - Todd Takayoshi, Pocatello | 16 - Willie Brown, Lethbridge | 1.38 - Dan Camacho, Great Falls
|
| 1994 | Billings Mustangs | .372 - Jeremy Winget, Ogden | 14 - Chris Priest, Lethbridge; Nick Morrow, Billings | 2.05 - Jeff Kramer, Helena
|
| 1995 | Helena Brewers | .388 - Jamie Lopiccolo, Ogden | 13 - Sean Watkins, Idaho Falls | 2.71 - Jay Veniard, Medicine Hat
|
| 1996 | Helena Brewers | .424 - Kevin Sweeney, Lethbridge | 17 - Michael Rodriguez, Ogden; David Hayman, Lethbridge; Darron Ingram, Billings | 2.22 - Vladimir Nunez, Lethbridge
|
| 1997 | Billings Mustangs | .448 - Greg Morrison, Medicine Hat | 23 - Greg Morrison, Medicine Hat | 1.29 - John Sneed, Medicine Hat
|
| 1998 | Idaho Falls Braves | .397 - Jay Gibbons, Medicine Hat | 19 - Jay Gibbons, Medicina Hat | 2.32 - Pat Lynch, Medicine Hat
|
| 1999 | Missoula Osprey | .363 - Casey Bookout, Billings | 19 - Troy Schader, Idaho Falls | 2.67 - Jose Mieses, Helena
|
| 2000 | Idaho Falls Padres | .381 - Randy Ruiz, Billings | 20 - J.P. Woodward, Idaho Falls | 1.88 - Ricardo Rodriguez, Great Falls
|
| 2001 | Billings Mustangs | .368 - Jesus Cota, Missoula | 16 - Jesse Gutierrez, Billings; Jesus Cota, Missoula | 2.05 - Jason Dennis, Provo
|
| 2002 | Great Falls Dodgers | .379 - Paul McAnulty, Idaho Falls | 19 - Ryan Shealy, Casper | 0.96 - Cleris Severino, Billings
|
| 2003 | Billings Mustangs | .391 - Lou Palmisano, Helena | 12 - Casey Fuller, Casper; Walter Olmstead, Billings | 1.64 - Daniel Davidson, Provo
|
| 2004 | Provo Angels | .373 - Billy Butler, Idaho Falls | 19 - Robert Mosby, Billings | 2.54 - Ray Liotta, Great Falls
|
| 2005 | Orem Owlz | .381 - Corey Wimberly, Casper | 15 - Christopher Cook, Casper | 2.43 - Brent Leach, Ogden
|
| 2006 | Missoula Osprey | .354 - Daniel Dorn, Billings | 15 - Chris Carter, Great Falls | 2.14 - Sean O'Sullivan, Orem
|
| 2007 | Orem Owlz | .372 - Caleb Gindl, Helena | 20 - Brandon Waring, Billings | 2.39 - Juan Moreno, Great Falls
|
