Thomasson spent nine seasons in the majors, playing for four different teams from 1972-1980. He came up with the San Francisco Giants in 1972 and was a starter at first base and in the outfield the following season. He had the best year of his career in 1977 when he hit .256 with 17 home runs, 71 RBIs, 63 runs scored and 16 stolen bases. The Giants dealt him to Oakland in 1978 but his stay there was short as the A’s sent him to the New York Yankees midway through the season. Thomason concluded his big-league run with the Los Angeles Dodgers for two seasons. His career average was .249 with 61 home runs.
As he notes, Thomasson joined the Yankees midway through their march to the World Series in 1978. He hit .276 in 54 games for New York and had a hit in four at bats in the World Series against the Dodgers.
Thomasson left MLB to join the Yomiuri Giants of the Nippon Professional Baseball League. He eventually signed the largest contract in Japanese baseball history, but his stay there was short as he lasted just two seasons. (Wikipedia)
Gary Thomasson – career stats