McGowan also finished second to Calvin Peete in the 1986 New Orleans Open, while his best finish in a major was 4th in the 1983 PGA Championship at Riviera Country Club.
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During the Quad Cities Open in 1982, he was tied for the lead after three rounds with Calvin Peete and Jeff Mitchell.
Calvin Coolidge | Calvin Klein | John Calvin | Calvin Trillin | Calvin College | Calvin | Calvin Klein (fashion designer) | Calvin and Hobbes | Calvin Johnson | William H. Calvin | Melvin Calvin | Calvin Richardson | Calvin Peete | Calvin Johnson (musician) | Calvin Hill | John Calvin Coolidge, Sr. | Collège Calvin | Captain Calvin and Pamela Hale House | Calvin Klein Collection | Calvin Johnson (American football) | Calvin Harrison | Calvin Company | Calvin Bridges | Calvin Ayre | Rodney Peete | Let's Go (Calvin Harris song) | La Chaire a Calvin | Donnie Calvin | Cher Calvin | Charles Calvin Rogers |