Major League pitcher Doug Fister made a rehab start in Baseballtown Friday night, pitching the Senators past the Fightin Phils, 9-4.
Fister threw 76 pitches over 3.2 innings, allowing two runs along the way.
Fister is set to join the Washington Nationals rotation next week.
Harrisburg hit four home runs off of Reading start Hoby Milner in the game.
The Fightin Phils (12-12) have now lost six of seven games.
They'll resume their series with the Senators on Saturday at 6:35pm at FirstEnergy Stadium.