| 2007 | 109th | -- No entries -- | Master |
| In Progress | Expert | ||
| " | Class A | ||
| " | Class B | ||
| " | Class C | ||
| " | Class D | ||
| -- No entries -- | Class E | ||
| 2006 | 108th | Jerry Honn * | Master |
| In Progress | Expert | ||
| " | Class A | ||
| " | Class B | ||
| " | Class C | ||
| " | Class D | ||
| -- No entries -- | Class E | ||
| * Opponent in 2-game finals match withdrew after 4 moves. | |||
| 2005 | 107th | -- No entries -- | Master |
| In progress | Expert | ||
| " | Class A | ||
| Joseph Daudish | Class B | ||
| In progress | Class C | ||
| Jay Simonson | Class D | ||
| -- No entries -- | Class E | ||
| 2004 | 106th | -- No entries -- | Master |
| Rudolf Katzl | Expert | ||
| Art Marthinsen | Class A | ||
| Larry Schultz | Class B | ||
| Joseph Daudish | Class C | ||
| Matthew Wingate | Class D | ||
| Damon Reed | Class E | ||
| 2003 | 105th | -- No entries -- | Master |
| Jerry Honn | Expert | ||
| John McKearney | Class A | ||
| Bradly Neuschwanger | Class B | ||
| Mark Duncovich | Class C | ||
| Phillip Norman | Class D | ||
| -- No entries -- | Class E | ||
| 2002 | 104th | Andrew Gach | Master |
| Joseph Chromik | Expert | ||
| Richard S. Vandenburg | Class A | ||
| Roscoe McPherren | Class B | ||
| Michael J. Marshall | Class C | ||
| Timothy Burritt | Class D | ||
| Jay Simonson | Class E | ||
| 2001 | 103rd | Robert Chalker, Andrew Gach | Master |
| Charles Merrow | Expert | ||
| W. Laurence Coker | Class A | ||
| Wade Partin | Class B | ||
| John Prochera | Class C | ||
| John Sasseen | Class D | ||
| Andrew Westhead | Class E | ||
| 2000 | 102nd | Michael Blechar | Master |
| Alan Stern | Expert | ||
| Claude Heffner | Class A | ||
| W. Laurence Coker | Class B | ||
| Michael O'Keefe | Class C | ||
| Joseph Davis, Dennis Kohler | Class D | ||
| -- No entries -- | Class E | ||
| 1999 | 101st | N. Eric Pedersen | Master |
| Charles Jennings | Expert | ||
| Jerry Boone, Michael Eldridge | Class A | ||
| W. Laurence Coker | Class B | ||
| Robert Sciarretta | Class C | ||
| Jean Moeckel | Class D | ||
| -- No entries -- | Class E | ||
| 1998 | 100th | James B. Skeels | Master |
| Michael Blechar | Expert | ||
| Charles Kissick | Class A | ||
| Clark Mayo | Class B | ||
| William H. Phillips | Class C | ||
| Mike Jenkins | Class D | ||
| Jean Moeckel | Class E | ||
| 1997 | 99th | Herbert W. Hickman | Master |
| John C. Knudsen | Expert | ||
| Joseph V. Chromik | Class A | ||
| Roger Viles | Class B | ||
| Robert Sciarretta | Class C | ||
| John Jankite | Class D | ||
| Keith Castle | Class E | ||
| 1996 | 98th | Hugh Hart; Herbert W. Hickman; Stephen D. Wolff | Master |
| Shawn D. Clark | Expert | ||
| John Caliguire | Class A | ||
| Clark Mayo; L. Richard Thompson | Class B | ||
| David Schaab | Class C | ||
| James Zolnik | Class D | ||
| -- No entries -- | Class E | ||
| 1995 | 97th | Stephen D. Wolff | Master |
| Horst Remus | Expert | ||
| Harry Ingersol | Class A | ||
| Tony Varela | Class B | ||
| David Schaab | Class C | ||
| Dale Nyberg; John C. Ormins | Class D | ||
| John Webb | Class E | ||
| 1994 | 96th | Craig Madsen | Master |
| Jack Mongilutz | Expert | ||
| Shawn D. Clark | Class A | ||
| John Hazlett | Class B | ||
| Lawrence D. Anderson; Mark Duncovich | Class C | ||
| William H. Phillips; Darcy Robinson | Class D | ||
| John Mazzarella | Class E | ||
| 1993 | 95th | Herbert W. Hickman | Master |
| Van Koppersmith | Expert | ||
| Robert P. Gilles | Class A | ||
| W. Stan Evans | Class B | ||
| Roger D. Flanders | Class C | ||
| Dorothy Lord | Class D | ||
| -- No entries -- | Class E | ||
| 1992 | 94th | Herbert W. Hickman | Master |
| Jean DuBreuil | Expert | ||
| Robert P. Gilles | Class A | ||
| Carl Dunn | Class B | ||
| Mark Hampton | Class C | ||
| Robert J. Mepham | Class D | ||
| -- No entries -- | Class E | ||
| 1991 | 93rd | Paul L. Thompson | Master |
| Jack Mongilutz | Expert | ||
| Hector R. Hernandez | Class A | ||
| Mark LaBoda | Class B | ||
| R. Shann Teague | Class C | ||
| Lee Coldwell | Class D | ||
| Michael J. O'Keefe | Class E | ||
| 1990 | 92nd | Alan Stern | Master |
| Richard Friedenthal; Robert B. Potter | Expert | ||
| G. Robert Arnold | Class A | ||
| Clark Mayo | Class B | ||
| Lorin J. Evans | Class C | ||
| Mike Jenkins | Class D | ||
| Louis Pennisi | Class E | ||
| 1989 | 91st | Andre Reichmann | Master |
| Paul L. Thompson | Expert | ||
| Stephen McGiffert | Class A | ||
| Bryce D. Avery | Class B | ||
| James D. Gardner | Class C | ||
| Mike Jenkins | Class D | ||
| Lee Coldwell | Class E | ||
| 1988 | 90th | Curtis W. Carlson | Master |
| Spencer Kell | Expert | ||
| Tim Pointon | Class A | ||
| G. Robert Arnold | Class B | ||
| Tony Varela | Class C | ||
| James D. Gardner | Class D | ||
| Tom Mitchell | Class E | ||
| 1987 | 89th | Lev Lamech | Master/Expert |
| Gene Estes | Class A | ||
| H. O. Madison | Class B | ||
| W. Stan Evans | Class C | ||
| Lorin J. Evans; Edward L. Mott | Class D | ||
| Nathan Hall | Class E | ||
| 1986 | 88th | Paul L. Thompson | Master/Expert |
| Clark Mayo | Class A | ||
| Rick Weiss | Class B | ||
| Eugene L. Long | Class C | ||
| Fred Criminger; William Hutchinson | Class D | ||
| Nestor Corso | Class E | ||
| 1985 | 87th | Erik Osbun | Master/Expert |
| Gerald Weaver | Class A | ||
| Ken Kuniyuki, Clara Widenski | Class B | ||
| Stephen Bowles | Class C | ||
| James P. Lewis, Jr. | Class D | ||
| Edward L. Mott | Class E | ||
| 1984 | 86th | Stephen D. Wolff | Master/Expert |
| Harvey Warren | Class A | ||
| David C. Heap | Class B | ||
| Michael Jerichow; Adrian Lomax | Class C | ||
| Larry Jefferson | Class D | ||
| James P. Lewis, Jr. | Class E | ||
| 1983 | 85th | Stephen D. Wolff | Master/Expert |
| Paul Hornreich | Class A | ||
| Ross Holmes | Class B | ||
| David S. Kuzner | Class C | ||
| Verna Fausey; Robert Webb | Class D | ||
| Hugh Wright | Class E | ||
| 1982 | 84th | Mitch Weiss | Master/Expert |
| Andrejs Donins | Class A | ||
| Alex Cacas; Eugene Fenech | Class B | ||
| Robert Donaldson | Class C | ||
| David S. Kuzner | Class D | ||
| Carol Howard | Class E | ||
| 1981 | 83rd | Thomas A. Mueller | Master/Expert |
| Seth Cohen | Class A | ||
| James L. Dietz | Class B | ||
| James Modesitt | Class C | ||
| Leo Whiteside | Class D | ||
| Frank Flanner | Class E | ||
| 1980 | 82nd | Kiven Plesset | Master/Expert |
| Gary Blomquist | Class A | ||
| James L. Dietz | Class B | ||
| L. Richard Thompson | Class C | ||
| Gilbert Drysdale | Class D | ||
| Art Bullentini; Dick Rowley | Class E | ||
| 1979 | 81st | Robert B. Potter | Master/Expert |
| John Vehre | Class A | ||
| Jonathan Voth | Class B | ||
| Jerry Sheets | Class C | ||
| Roger Fedelia | Class D | ||
| Randle Davis; Randy Miners | Class E | ||
| 1978 | 80th | Broni Kozma | Master/Expert |
| Sol Simcoe | Class A | ||
| Don Horacek | Class B | ||
| Jerry Sheets | Class C | ||
| Roger Fedelia; Wiley Faust | Class D | ||
| Daniel Newman | Class E | ||
| 1977 | 79th | Herbert W. Hickman | Master/Expert |
| Schuyler Marshall | Class A | ||
| David Gray | Class B | ||
| Garth B. Jones | Class C | ||
| Roger Fedelia | Class D | ||
| Warren Woodburn | Class E | ||
| 1976 | 78th | David B. Reynolds | Master/Expert |
| Barry Nalepa | Class A | ||
| Charles Powrie | Class B | ||
| Brian Nenno | Class C | ||
| Ben Therrell | Class D | ||
| Gene Bate | Class E | ||
| 1975 | 77th | Irving Kandel | Master/Expert |
| Roy Kress; Jack Mongilutz | Class A | ||
| D. L. P. Ballard | Class B | ||
| Larry English; Thomas P. Huff | Class C | ||
| Brian Nenno | Class D | ||
| Walter Crutchfield | Class E | ||
| 1974 | 76th | N. Eric Pedersen | Master/Expert |
| Robert N. Sills | Class A | ||
| Jack Mongilutz | Class B | ||
| D. L. P. Ballard | Class C | ||
| Robert Bowser | Class D | ||
| David M. Ballard | Class E | ||
| 1973 | 75th | V. V. Palciauskas | Master/Expert |
| Fred Collazo | Class A | ||
| Jerome Peck | Class B | ||
| Michael Allard | Class C | ||
| James Visintainer | Class D | ||
| David M. Ballard | Class E | ||
| 1972 | 74th | David C. Taylor | Master class |
| William B. Stone | Class A | ||
| John D. Adams | Class B | ||
| Ford Marchant | Class C | ||
| W. Laurence Coker | Class D | ||
| Terry Spruance | Class E | ||
| 1971 | 73rd | Donald Diesen | Master class |
| Wilbur W. DeAtley | Class A | ||
| Herman Scott | Class B | ||
| Frank Wagner | Class C | ||
| Eugene Klein | Class D | ||
| John Farrell | Class E | ||
| 1970 | 72nd | George Mauer | Master class |
| Russell Olin | Class A | ||
| Nick Oranczak; Jack Rubin | Class B | ||
| Roger O'Donnell | Class C | ||
| Ed Hyde | Class D | ||
| John Ishkan | Class E | ||
| 1969 | 71st | Leslie Roberts | Master class |
| Russell Olin | Class A | ||
| Frank Tegel | Class B | ||
| Stanley Lind | Class C | ||
| August Will | Class D | ||
| D. Lee Nierman, Robert Simms | Class E | ||
| 1968 | 70th | Leslie Roberts | Class AA |
| Eugene Cowan | Class A | ||
| Russell Olin | Class B | ||
| Ron Sinclair | Class C | ||
| John Blumetti, Arthur Old | Class D | ||
| John Barney | Class E | ||
| 1967 | 69th | George Mauer, Robert B. Potter | Class AA |
| John Rather | Class A | ||
| Jimmy Aden | Class B | ||
| Michael Frischberg | Class C | ||
| Robert Staats | Class D | ||
| John Weithoff | Class E | ||
| 1966 | 68th | Earle Hummel | Class AA |
| Austin Hobson | Class A | ||
| D. G. Thomas | Class B | ||
| Dr. R. McConkie | Class C | ||
| William Batchelor, William Bissell | Class D | ||
| G. Torres | Class E | ||
| 1965 | 67th | Walter Muir | Class AA |
| Ernest F. Chace, Jack Riesenbeck | Class A | ||
| J. D. Paterson, Dennis Thurman | Class B | ||
| Joan Gellings | Class C | ||
| Lyle Baltrusch | Class D | ||
| Betty Haitsch | Class E | ||
| 1964 | 66th | Class AA | |
| Class A | |||
| Nestor Farris | Class B | ||
| Class C | |||
| Class D | |||
| Class E | |||
| 1963 | 65th | Class AA | |
| Class A | |||
| Class B | |||
| Class C | |||
| Class D | |||
| Class E | |||
| 1962 | 64th | Class AA | |
| Vassily Davidiuk | Class A | ||
| Class B | |||
| Class C | |||
| Class D | |||
| Class E | |||
| 1961 | 63rd | Class AA | |
| Class A | |||
| Class B | |||
| Class C | |||
| Isabel Moseley | Class D | ||
| Class E | |||
| 1960 | 62nd | Class AA | |
| Class A | |||
| Class B | |||
| Class C | |||
| Class D | |||
| Class E | |||
| 1959 | 61st | Class AA | |
| Class A | |||
| Class B | |||
| Class C | |||
| Class D | |||
| Class E | |||
| 1958 | 60th | Leonid Dreibergs, R. E. A. Doe | Class AA |
| Kirill Firfiroff | Class A | ||
| Class B | |||
| Dr. Bernard Greifer | Class C | ||
| Class D | |||
| Class E | |||
| 1957 | 59th | Class AA | |
| Class A | |||
| John Roecker | Class B | ||
| Dr. D. S. Goldberg, Vernon Lambert | Class C | ||
| Class D | |||
| Fred Cramer | Class E | ||
| 1956 | 58th | Class AA | |
| Class A | |||
| Melvin Semb, Edward Walrath | Class B | ||
| Class C | |||
| T. R. Leach | Class D | ||
| Class E | |||
| 1955 | 57th | Class AA | |
| Class A | |||
| Class B | |||
| Class C | |||
| Class D | |||
| Class E | |||
| 1954 | 56th | Class AA | |
| Class A | |||
| Robert R. Bass | Class B | ||
| Class C | |||
| Class D | |||
| Class E | |||
| 1953 | 55th | Stephen Kowalski, Dr. Bela Rozsa | Class AA |
| Leonid Dreibergs | Class A | ||
| William W. Holmes | Class B | ||
| Alexander March | Class C | ||
| Class D | |||
| Class E | |||
| 1952 | 54th | Class AA | |
| Leonid Dreibergs | Class A | ||
| Class B | |||
| William F. Viveiros | Class C | ||
| Class D | |||
| Class E | |||
| 1951 | 53rd | Class AA | |
| Class A | |||
| Class B | |||
| Class C | |||
| Class D | |||
| Class E | |||
| 1950 | 52nd | Class AA | |
| Class A | |||
| Class B | |||
| Class C | |||
| Class D | |||
| Class E | |||
| Class F | |||
| 1949 | 51st | Class AA | |
| Class A | |||
| Class B | |||
| Class C | |||
| Henry G. Abbott | Class D | ||
| Class E | |||
| F. W. Keller | Class F | ||
| 1948 | 50th | Class AA | |
| Class A | |||
| Allen DuVall | Class B | ||
| Class C | |||
| Class D | |||
| Class E | |||
| Class F | |||
| 1947 | 49th | Class AA | |
| Class A | |||
| Class B | |||
| Class C | |||
| Gilbert P. Ellithorpe | Class D | ||
| Class E | |||
| Class F | |||
| 1946 | 48th | Class AA | |
| Class A | |||
| Class B | |||
| Class C | |||
| Class D | |||
| Class E | |||
| Class F | |||
| 1945 | 47th | Class AA | |
| Class A | |||
| Dr. I. Farber | Class B | ||
| Class C | |||
| Class D | |||
| Class E | |||
| Class F | |||
| 1944 | 46th | Class AA | |
| Class A | |||
| Norman Roberts | Class B | ||
| Class C | |||
| Class D | |||
| Class E | |||
| Class F | |||