Renko was a 24 year old minor league pitcher for the New York Mets when he was traded to the Montreal Expos in 1969. It was the Expos inaugural year in Major League Baseball while the Mets became the 1969 World Series champions. Renko pitched for the Expos during their first seven seasons (1969-1975) leading the team in wins in 1973 with 15 victories. For his career, Renko ranks in the top five of all Expos pitchers with 68 career victories for the team.
He helped the Angels win the 1982 American League Western Division, with a win/loss of 11-6.
He led the National League in wild pitches (19) in 1974.
He ranks 99th on the career home runs allowed List (248).
In 15 seasons he had a 134-146 win-loss record, 451 games, 365 games started, 57 complete games, 9 shutouts, 36 games finished, 6 saves, 2,494 innings pitched, 2,438 hits allowed, 1,233 runs allowed, 1,107 earned runs allowed, 248 home runs allowed, 1,010 walks allowed, 1,455 strikeouts, 22 hit batsmen, 73 wild pitches, 10,704 batters faced, 86 intentional walks, 4 balks and a 3.99 earned run average. In 1979, he carried a no-hitter into the ninth inning against the Oakland A's in Oakland, only to be broken up by a Rickey Henderson double with one out in the bottom of the ninth. Renko pitched 3 career one-hitters.
