The Eastern League season began on approximately April 1 and the regular season ended on approximately September 1.
The London Tigers defeated the New Britain Red Sox three games to zero to win the Eastern League Championship Series.
Regular season
Standings Eastern League Team Win Loss % GB Albany/Colonie Yankees 79 60 .568 – London Tigers 76 63 .547 3.0 Canton–Akron Indians 76 64 .543 3.5 New Britain Red Sox 72 67 .518 7.0 Harrisburg Senators 69 69 .500 9.5 Hagerstown Suns 67 71 .486 11.5 Williamsport Bills 61 79 .436 18.5 Reading Phillies 55 82 .401 23.0
Notes: Green shade indicates that team advanced to the playoffs Bold indicates that team advanced to ELCS Italics indicates that team won ELCS
Playoffs
Semi-finals Series London Tigers defeated the Canton–Akron Indians 3 games to 2. New Britain Red Sox defeated the Albany/Colonie Yankees 3 games to 2.
Championship Series London Tigers defeated the New Britain Red Sox 3 games to 0.
References
External links 1990 Eastern League Review at thebaseballcube.com