| OGA Men's Stroke Play Champions | ||
| Year | Men’s Champion | Host Course |
| 2023 | Robbie Ziegler | Juniper Golf Club |
| 2022 | Taehoon Song | OGA Golf Course |
| 2021 | Craig Ronne | Emerald Valley Golf Club |
| 2020 | Ray Richards | Salishan Golf Links |
| 2019 | Kyosuke Hara | Eagle Crest GC |
| 2018 | Kyosuke Hara | Arrowhead Golf Club |
| 2017 | Nicholas Huff | Emerald Valley Golf Club |
| 2016 | Kevin Geniza | Centennial Golf Club |
| 2015 | Alistair Docherty | Willamette Valley CC |
| 2014 | Conner Kumpula | Juniper Golf Club |
| 2013 | Zach Foushee | Emerald Valley Golf Club |
| 2012 | Michael Johansen | Emerald Valley Golf Club |
| 2011 | Nick Chianello | Emerald Valley Golf Club |
| 2010 | Paul Peterson | Emerald Valley Golf Club |
| 2009 | Paul Peterson | Emerald Valley Golf Club |
| 2008 | Andrew Vijarro | Emerald Valley Golf Club |
| 2007 | Brooks Newsom | Emerald Valley Golf Club |
| 2006 | Mitch Gillis | Emerald Valley Golf Club |
| 2005 | Adam Hagen | Emerald Valley Golf Club |
| 2004 | Chris Dukeminier | Running Y Ranch |
| 2003 | Bryce Fisher | Wildhorse Golf Resort |
| 2002 | Alan Minor | Eagle Point GC |
| 2001 | Anthony Arvidson | Emerald Valley Golf Club |
| 2000 | Anthony Arvidson | Running Y Ranch |
| 1999 | Ryan LaVoie | OGA Members Course |
| 1998 | Chris Carnahan | Eagle Point GC |
| 1997 | David Crowell | Emerald Valley Golf Club |
| 1996 | Jim Pliska | Emerald Valley Golf Club |
| 1995 | Chris Maletis | Emerald Valley Golf Club |
| 1994 | Anthony Kang | Emerald Valley Golf Club |
| 1993 | Doug DeChateau | Emerald Valley Golf Club |
| 1992 | Jim Tucker | Emerald Valley Golf Club |
| 1991 | Doug DeChateau | Emerald Valley Golf Club |
| 1990 | Dick Shafer Jr. | Emerald Valley Golf Club |
| 1989 | Warren Vickers | Emerald Valley Golf Club |
| 1988 | Steve Rintoul | Emerald Valley Golf Club |
| 1987 | Steve Rintoul | Emerald Valley Golf Club |
| 1986 | George Daves | Emerald Valley Golf Club |
| 1985 | George Daves | Emerald Valley Golf Club |
| 1984 | George Daves | Emerald Valley Golf Club |
| 1983 | John Delong | Emerald Valley Golf Club |
| 1982 | Shell Joyner | Emerald Valley Golf Club |
| 1981 | John Adler | Emerald Valley Golf Club |
| 1980 | Larry Skreen | Emerald Valley Golf Club |
| 1979 | Eric Redd | Forest Hills Golf Club |
| 1978 | Ed Fisher | Forest Hills Golf Club |
| 1977 | Ted Thompson | Forest Hills Golf Club |
| 1976 | Gay Davis | Shadow Hills Country club |
| 1975 | John Pennington | |
| 1974 | David Cooper | Prineville Golf & Country Club |
| 1973 | Ron Delaney | Prineville Golf & Country Club |
| 1972 | Mike Currie | Prineville Golf & Country Club |
| 1971 | Steve McDonald | |
| 1970 | Lou Stafford | Prineville Golf & Country Club |
| 1969 | Jim Wilkinson | |
| 1968 | Bill Close | |
| 1967 | Bill Close | |
| 1966 | George Beechler | |
| 1965 | Chuck Fisk | |
| 1964 | Don Kreiger | |
| 1963 | Don Kreiger | |
| 1962 | Don Kreiger | |
| 1961 | ||
| 1960 | Richard Price | Royal Oaks Country Club |
| 1959 | Tom Liljeholm | Reames Golf & Country Club |
| 1958 | Robert K. Bronson | Bend Golf Club |
| 1957 | Richard Stearns | Forest Hills Country Club |
| 1956 | Robert Prall | Rogue Valley Country Club |
| 1955 | Robert Prall | Royal Oaks Country Club |
| 1954 | Kermit Smith | Astoria Golf & Country Club |
| 1953 | George Harrington | Oswego Lake Country Club |
| 1952 | Dick Yost | Portland Golf Club |
| 1951 | Dick Yost | Eugene Country Club |
