Grand American Zone Team Competition Results
| 1950: Western | 1951: Western | 1952: |
| 1953: | 1954: | 1955: Central |
| 1956: Southwestern | 1957: Eastern | 1958: Central |
| 1959: Central | 1960: Central | 1961: Central |
| 1962: Eastern | 1963: Southwestern | 1964: Western |
| 1965: Western | 1966: Southern | 1967: Western |
| 1968: Southwestern | 1969: Central | 1970: Western |
| 1971: Central | 1972: Southern | 1973: Eastern |
| 1974: Central | 1975: Eastern | 1976: Eastern |
| 1977: Central | 1978: Eastern | 1979: Southwestern |
| 1980: Central | 1981: Central | 1982: Eastern |
| 1983: Central | 1984: Central | 1985: Central |
| 1986: Southwestern | 1987: Central | 1988: Western |
| 1989: Southwestern | 1990: Eastern | 1991: Southwestern |
| 1992: Southwestern | 1993: Central | 1994: Eastern |
| 1995: Southwestern | 1996: Western | 1997: Southern |
| 1998: Western | 1999: Central | 2000: Eastern |
Winning Eastern Zone Teams
| 1957 | 985 x 1000 | Walter
Ostrom (200), Robert Smith (197),
E. A. Bud Ross (196), Frank Dissinger (196), Howard Dilts (194). |
| 1962 | 989 x 1000 | Norton
Lyman (199), Mahlon Schwar (199), E.A. Bud Ross (198), J.L. Fitzgerald (198), Verne Thornborrow (195). |
| 1973 | 982 x 1000 | Frank
Little (198), Walt Marvel (198), Charles Sheckler (196), Ron Schmuck (196), William Hunsberger (194). |
| 1975 | 989 x 1000 | Ron
Schmuck (200), Robert
McCarthy (200), Walt Marvel (197), William DeVaux (197), William Anzaldi (195). |
| 1976 | 990 x 1000 | Phil
Wright (200), A. C. Lambert (199),
Ray Galloway (198), Kay Ohye (197), Robert Machamer (196). |
| 1978 | 985 x 1000 | Phillip
Wright (199), Woodrow Doty (199), Richard Forrest (198), Larry Russo (197), Robert Machamer (192). |
| 1982 | 997 x 1000 Grand American Record |
Kay
Ohye (200), Gerald
Russo (200), Mike
Latocha (200), Fran McCullough (199), Robert Miller (198). |
| 1990 | 994 x 1000 | Frank
Little (200), Kay Ohye (199),
Gerald Russo (199), Joseph Cimino (198), Steven Ollock (198). |
| 1994 | 995 x 1000 | Chris
Vendel (200), Patrick McHugh
(199), Kay Ohye (199), David Proper (199), Keith Welch (198). |
| 2000 | 984 x 1000 | Kenneth
Darroch (200), Dave Bicknell
(197), Gary Ehasalu (197), Chris Vendel (196), Carl Wagner (194). |