Farrell held off Serra Catholic 70-64 in the PIAA Class 2A Second Round Wednesday night at Slipery Rock University.
Eric Hopson led the Steelers with 20 points. Kobe Hilton added 18 in the victory, while Kyi Wright tallied 14.
Jimmy Moon led all scorers with 35 for the Eagles. Serra Catholic ends the season with a record of 21-5.
Farrell improves to 23-3 overall on the season. The Steelers advance to face Bishop Guilfoyle in the PIAA Class 2A Quarterfinals on Saturday.