The 1997 Eastern League season began on approximately April 1 and the regular season ended on approximately September 1.
The Harrisburg Senators defeated the Portland Sea Dogs 3 games to 1 to win the Eastern League Championship Series.
- Green shade indicates that team advanced to the playoffs
- Bold indicates that team advanced to ELCS
- Italics indicates that team won ELCS
The Portland Sea Dogs defeated the Norwich Navigators in the Northern Division playoffs 3 games to 2.
The Harrisburg Senators defeated the Bowie Baysox in the Southern Division playoffs 3 games to 2.
The Harrisburg Senators defeated the Portland Sea Dogs in the ELCS 3 games to 1.