| Past champions | |||
| Year | Winner | Score | Course |
| 1999 | x-Duffy Waldorf | 270 (18-under) | LaCantera GC, San Antonio, Texas |
| 1998 | Hal Sutton | 270 (18-under) | LaCantera GC, San Antonio, Texas |
| 1997 | Tim Herron | 271 (17-under) | LaCantera GC, San Antonio, Texas |
| 1996 | David Ogrin | 275 (13-under) | LaCantera GC, San Antonio, Texas |
| 1995 | Duffy Waldorf | 268 (20-under) | LaCantera GC, San Antonio, Texas |
| 1994 | Bob Estes | 265 (19-under) | Oak Hills CC, San Antonio, Texas |
| 1993 | x-Jay Haas | 263 (21-under) | Oak Hills CC, San Antonio, Texas |
| 1992 | x-Nick Price | 263 (21-under) | Oak Hills CC, San Antonio, Texas |
| 1991 | x-Blaine McCallister | 269 (11-under) | Oak Hills CC, San Antonio, Texas |
| 1990 | Mark O'Meara | 261 (19-under) | Oak Hills CC, San Antonio, Texas |
| 1989 | Donnie Hammond | 258 (22-under) | Oak Hills CC, San Antonio, Texas |
| 1988 | Corey Pavin | 259 (21-under) | Oak Hills CC, San Antonio, Texas |
| 1987 | No tournament | ||
| 1986 | y-Ben Crenshaw | 196 (14-under) | Oak Hills CC, San Antonio, Texas |
| 1985 | x-John Mahaffey | 268 (12-under) | Oak Hills CC, San Antonio, Texas |
| 1984 | Calvin Peete | 266 (14-under) | Oak Hills CC, San Antonio, Texas |
| 1983 | Jim Colbert | 261 (19-under) | Oak Hills CC, San Antonio, Texas |
| 1982 | Jay Haas | 262 (18-under) | Oak Hills CC, San Antonio, Texas |
| 1981 | x-Bill Rogers | 266 (14-under) | Oak Hills CC, San Antonio, Texas |
| 1980 | Lee Trevino | 265 (15-under) | Oak Hills CC, San Antonio, Texas |
| 1979 | Lou Graham | 268 (12-under) | Oak Hills CC, San Antonio, Texas |
| 1978 | Ron Streck | 265 (15-under) | Oak Hills CC, San Antonio, Texas |
| 1977 | Hale Irwin | 266 (14-under) | Oak Hills CC, San Antonio, Texas |
| 1976 | x-Butch Baird | 273 (15-under) | Woodlake GC, San Antonio, Texas |
| 1975 | x-Don January | 275 (13-under) | Woodlake GC, San Antonio, Texas |
| 1974 | Terry Diehl | 269 (19-under) | Woodlake GC, San Antonio, Texas |
| 1973 | Ben Crenshaw | 270 (14-under) | Woodlake GC, San Antonio, Texas |
| 1972 | Mike Hill | 273 (15-under) | Woodlake GC, San Antonio, Texas |
| 1971 | No tournament | ||
| 1970 | Ron Cerrudo | 273 (11-under) | Pecan Valley CC, San Antonio, Texas |
| 1969 | x-Deane Beman | 274 (10-under) | Pecan Valley CC, San Antonio, Texas |
| 1968 | No tournament | ||
| 1967 | Chi Chi Rodriguez | 277 (7-under) | Pecan Valley CC, San Antonio, Texas |
| 1966 | Harold Henning | 272 (8-under) | Oak Hills CC, San Antonio, Texas |
| 1965 | Frank Beard | 270 (10-under) | Oak Hills CC, San Antonio, Texas |
| 1964 | Bruce Crampton | 273 (7-under) | Oak Hills CC, San Antonio, Texas |
| 1963 | Phil Rodgers | 268 (12-under) | Oak Hills CC, San Antonio, Texas |
| 1962 | Arnold Palmer | 273 (7-under) | Oak Hills CC, San Antonio, Texas |
| 1961 | Arnold Palmer | 270 (10-under) | Oak Hills CC, San Antonio, Texas |
| 1960 | Arnold Palmer | 276 (12-under) | Ft. Sam Houston GC, San Antonio, Texas |
| 1959 | Wes Ellis | 276 (8-under) | Brackenridge Park GC, San Antonio, Texas |
| 1958 | Bill Johnston | 274 (10-under) | Brackenridge Park GC, San Antonio, Texas |
| 1957 | Jay Hebert | 271 (13-under) | Brackenridge Park GC, San Antonio, Texas |
| 1956 | Gene Littler | 276 (12-under) | Ft. Sam Houston GC, San Antonio, Texas |
| 1955 | Mike Souchak | 257 (27-under) | Brackenridge Park GC, San Antonio, Texas |
| 1954 | Chandler Harper | 259 (25-under) | Brackenridge Park GC, San Antonio, Texas |
| 1953 | Tony Holguin | 264 (20-under) | Brackenridge Park GC, San Antonio, Texas |
| 1952 | Jack Burke Jr. | 260 (24-under) | Brackenridge Park GC, San Antonio, Texas |
| 1951 | x-Dutch Harrison | 265 (19-under) |
Brackenridge Park GC, San Antonio, Texas Ft. Sam Houston GC, San Antonio, Texas |
| 1950 | Sam Snead | 265 (21-under) |
Brackenridge Park GC, San Antonio, Texas Ft. Sam Houston GC, San Antonio, Texas |
| 1949 | Dave Douglas | 268 (20-under) | Willow Springs GC, San Antonio, Texas |
| 1948 | Sam Snead | 264 (24-under) | Willow Springs GC, San Antonio, Texas |
| 1947 | Ed Oliver | 265 (23-under) | Willow Springs GC, San Antonio, Texas |
| 1946 | Ben Hogan | 264 (24-under) | Willow Springs GC, San Antonio, Texas |
| 1945 | Sam Byrd | 268 (20-under) | Willow Springs GC, San Antonio, Texas |
| 1944 | Johnny Revolta | 273 (15-under) | Willow Springs GC, San Antonio, Texas |
| 1943 | No tournament | ||
| 1942 | x-Chick Harbart | 272 (16-under) | Willow Springs GC, San Antonio, Texas |
| 1941 | Lawson Little | 273 (15-under) | Willow Springs GC, San Antonio, Texas |
| 1940 | x-Byron Nelson | 271 (13-under) | Brackenridge Park GC, San Antonio, Texas |
| 1939 | Dutch Harrison | 271 (13-under) | Brackenridge Park GC, San Antonio, Texas |
| 1938 | No tournament | ||
| 1937 | No tournament | ||
| 1936 | No tournament | ||
| 1935 | No tournament | ||
| 1934 | Wiffy Cox | 283 (1-under) | Brackenridge Park GC, San Antonio, Texas |
| 1933 | No tournament | ||
| 1932 | Clarence Clark | 287 (3-over) | Brackenridge Park GC, San Antonio, Texas |
| 1931 | Abe Espinosa | 281 (3-under) | Brackenridge Park GC, San Antonio, Texas |
| 1930 | Denny Shute | 277 (7-under) | Brackenridge Park GC, San Antonio, Texas |
| 1929 | Bill Mehlhorn | 277 (7-under) | Brackenridge Park GC, San Antonio, Texas |
| 1928 | Bill Mehlhorn | 297 (9-over) | Willow Springs GC, San Antonio, Texas |
| 1927 | Bobby Cruickshank | 272 (16-under) | Willow Springs GC, San Antonio, Texas |
| 1926 | Mac Smith | 288 (4-over) | Brackenridge Park GC, San Antonio, Texas |
| 1925 | Joe Turnesa | 284 (Even) | Brackenridge Park GC, San Antonio, Texas |
| 1924 | Joe Kirkwood | 279 (5-under) | Brackenridge Park GC, San Antonio, Texas |
| 1923 | x-Walter Hagen | 279 (5-under) | Brackenridge Park GC, San Antonio, Texas |
| 1922 | Bob MacDonald | 281 (3-under) | Brackenridge Park GC, San Antonio, Texas |