Trans-Mississippi Amateur Winners Winners

| Year_ | Winner | Runner_up | Venue | Location_ |
|---|---|---|---|---|
| 1976 | Doug Clarke | Ed Updegraff | Spyglass Hill | Pebble Beach, California |
| 1975 | Tim Wilson | Warren Aune | Kansas City Country Club | Mission Hills, Kansas |
| 1974 | Tom Jones | Michael Brennan | Cedar Ridge Country Club | Tulsa, Oklahoma |
| 1973 | Gary Koch | Guy Collins | Prairie Dunes Country Club | Hutchinson, Kansas |
| 1972 | Ben Crenshaw | John Paul Cain | Brook Hollow Golf Club | Dallas, Texas |
| 1971 | Allen Miller | Alan Tapie | Spyglass Hill | Pebble Beach, California |
| 1970 | Allen Miller | Joe Inman | Oklahoma City Golf & Country Club | Oklahoma City, Oklahoma |
| 1969 | Allen Miller | Dean Overturf | Cherry Hills Country Club | Cherry Hills Village, Colorado |
| 1968 | Bill Hyndman | Edward Hopkins | Southern Hills Country Club | Tulsa, Oklahoma |