The hard-throwing but often wild Jefferson had his only winning season (6-5) as an
Oriole rookie in 1973. The 24th pick of the Blue Jays in the 1976 expansion draft,
he was an abysmal 22-56 in four years in Toronto. Jefferson's two-hitter against
the Mariners on July 27, 1980 demonstrated that he could be a brilliant pitcher at
times. There were other times when he was terrible. He set a Blue Jay franchise record
with nine walks in a game against Baltimore on June 18, 1977, and he allowed 10 earned
runs (with four homers) against Chicago on April 11, 1978. Jefferson's best full
season came in 1977, when he went 9-17 with a 4.31 ERA.
FROM THE BASEBALL CHRONOLOGY
»June 23, 1973:
In his major league debut, Orioles P Jesse Jefferson loses his shut out when Red Sox SS Rico Petrocelli lofts a Fenway homer with two out in the 9th. Baltimore pushes over a run in the 10th to give Jefferson a 10-inning, 2–1 victory.
»April 30, 1980: Kansas City's Larry Gura pitches a one-hitter against the Blue Jays for his 3rd shutout in five starts, surrendering only a 7th-inning double to Damaso Garcia. Losing pitcher Jesse Jefferson holds the Royals hitless for six 2/3 innings in the 3–0 loss.