| Year |
Result |
| 2024 |
Torrington 7, Rock Springs 4 |
| 2023 |
Torrington 5, Laramie 3 (8 innings) |
| 2022 |
Gillette 10, Rock Springs 0 (4 innings) |
| 2021 |
Cody 14, Laramie 1 (5 innings) |
| 2020 |
International tournament not held due to Covid-19 pandemic |
| 2019 |
Gillette 2, Laramie 1 |
| 2018 |
Gillette 13, Cody 4 |
| 2017 |
Gillette 4, Laramie 0 |
| 2016 |
Laramie 8, Cody 4 |
| 2015 |
Gillette 7, Laramie 6 |
| 2014 |
Cody 10, Lander 3 |
| 2013 |
Cody 13, Riverton 11 |
| 2012 |
Cody 10, Laramie 0 (4 innings) |
| 2011 |
Laramie 10, Cody 3 |
| 2010 |
Laramie 12, Torrington 2 (5 innings) |
| 2009 |
Laramie 3, Platte County (Wheatland) 1 |
| 2008 |
Laramie 1, Green River 0 |
| 2007 |
Laramie 1, Platte County (Wheatland) 0 |
| 2006 |
Laramie 5, Gillette 1 |
| 2005 |
Gillette 4, Laramie 3 (7 innings) |
| 2004 |
Gillette 9, Torrington 5 |
| 2003 |
Laramie 12, Torrington 1 (5 innings) |
| 2002 |
Laramie 4, Gillette American 1 |
| 2001 |
Laramie 11, North Gillette 0 (5 innings) |
| 2000 |
Laramie 19, Rock Springs 5 |
| 1999 |
Green River 13, Laramie 5 |
| 1998 |
Laramie 3, North Gillette 2 |
| 1997 |
Laramie 2, Rock Springs 0 |
| 1996 |
Rock Springs 4, Laramie 3 |
| 1995 |
Laramie 13, Green River 1 |
| 1994 |
Torrington 8, Rock Springs 5 |
| 1993 |
Rock Springs 11, Laramie 2 |
| 1992 |
Torrington 3, Rock Springs 2 |
| 1991 |
Torrington 3, Gillette Southside 1 |
| 1990 |
Laramie 5, Rock Springs 4 |
| 1989 |
Gillette 6, Torrington 4 |
| 1988 |
Rock Springs 15, Torrington 6 |
| 1987 |
Green River 16, Rock Springs 3 |
| 1986 |
Riverton 8, Torrington 7 |
| 1985 |
Riverton 9, Rock Springs 0 |
| 1984 |
Riverton 12, Cody 7 |
| 1983 |
Laramie 15, Newcastle 2 |
| 1982 |
Cody 2, Lander 1 |
| 1981 |
Riverton 7, Torrington 4 |
| 1980 |
Riverton 5, Laramie 3 |
| 1979 |
Laramie 7, Riverton 3 |
| 1978 |
Laramie 9, Torrington 5 |
| 1977 |
Rock Springs 11, Torrington 4 |
| 1976 |
Rock Springs 11, Laramie 10 |
| 1975 |
Cody 2, Laramie 1 |
| 1974 |
Riverton 6, Torrington 4 |
| 1973 |
Laramie 5, Torrington 2 |
| 1972 |
Riverton 3, Torrington 2 |
| 1971 |
Cody 4, Torrington 2 |
| 1970 |
Cody 6, Laramie 5 (7 innings) |
| 1969 |
Riverton 13, Laramie 12 |
| 1968 |
Torrington 7, Powell 0 |
| 1967 |
Riverton 2, Torrington 0 |
| 1966 |
Laramie 6, Greybull 2 |
| 1965 |
Powell 3, Laramie 0 |
| 1964 |
Greybull 6, Rawlins 4 |
| 1963 |
Cody 7, Laramie 2 |
| 1962 |
Powell 7, Rawlins 1 |
| 1961 |
Riverton 5, Montpelier (Idaho) 4 |
| 1960 |
Laramie 5, Riverton 2 |
| 1959 |
Laramie 10, Riverton 2 |
| 1958 |
Laramie 13, Riverton 1 |
| 1957 |
Riverton 8, Cody 1 |