Irvin Koszewski (Zabo)

1948 - Mr New Jersey - AAU - - Overall Winner
1950 - Mr America - AAU - - 13th
1950 - Mr Eastern America - IFBB - - 3rd
1950 - Junior Mr America - AAU - - Unknown placing
1950 - Mr Middle Atlantic - AAU - Junior - 1st
1950 - Mr Middle Atlantic - AAU - - Winner
1951 - Mr Eastern America - AAU - - 3rd
1951 - Junior Mr America - AAU - - 4th
1951 - Mr Strength and Health - - 2nd
1952 - Mr America - AAU - - 5th
1952 - Mr California - AAU - - 4th
1952 - Mr Eastern America - AAU - - 3rd
1952 - Junior Mr America - AAU - - 3rd
1952 - Mr Southern California - AAU - - 3rd
1953 - Mr America - AAU - - 3rd
1953 - Mr California - AAU - - 2nd
1953 - Mr Los Angeles - AAU - - Winner
1953 - Mr Pacific Coast - AAU - - Winner
1953 - Mr Southern California - AAU - - 2nd
1954 - Mr America - AAU - - 3rd
1954 - Mr America - AAU - Most Muscular - 2nd
1954 - Mr California - AAU - Most Muscular - 1st
1954 - Mr California - AAU - - Winner
1954 - Junior Mr America - AAU - West - 2nd
1956 - Mr USA - - 3rd
1957 - Mr USA - - 5th
1965 - Mr America - IFBB - Medium - 3rd
1967 - Mr America - IFBB - Medium - 2nd
1967 - Mr Los Angeles - Pro - IPBA - - 2nd