Apart from three games pitched for the 1962 Kinston Eagles of the Class B Carolina League, Gibbon spent the remainder of his pro career in the big leagues. In his sophomore season, 1961 with Pittsburgh, he set personal bests in wins (13), games started (29), complete games (seven), shutouts (three), strikeouts (145) and innings pitched (1951⁄3). As his career progressed (and especially after his December 1965 trade to the Giants), Gibbon became more of a relief specialist. He did not make any starts after the 1967 season.
When he returned to the Pirates in June 1969, he pitched out of the Pittsburgh bullpen through 1970, appearing in two games of the 1970 National League Championship Series against Cincinnati and working a total of one-third of an inning. Released at the end of October, Gibbon joined the Reds in 1971 and posted a 2.94 ERA and tying his career-best mark for saves with 11.
During his MLB career, Gibbon compiled a 61–65 record with a 3.52 earned run average and 743 strikeouts in 1,1192⁄3 innings pitched; he allowed 1,053 hits and 414 bases on balls. He made 419 total appearances, 127 as a starting pitcher, and logged 20 complete games, four shutouts and 32 career saves.
Death
Gibbon died on February 20, 2019, at his home south of Newton, Mississippi after a short illness.[1]