Dettore appeared in four games for the Cubs in the bicentennial season, going 0-1 with an earned run average of 10.29 over seven innings.
Turns out those would be the last games of his Big League career, as he’d spend all of 1977 in the St. Louis Cardinals minor league system before retiring.
Dettore had a mixed bag of a career, mainly as an arm out of the bullpen with occasional starts here and there, finishing up his career with 68 appearances, including 15 starts.
Overall he ended up with a record of 8-11, with a 5.21 ERA in 179.2 innings pitched, with 106 strikeouts and 78 base on balls issued, all with the Cubs except for the first 12 appearances of his career in 1970, with the team that drafted him, the Pittsburgh Pirates.