Graham LeMon scored 14 points to spark Chatham to a 76-33 win over South Plainfield in North 2, Group III state tournament basketball on Tuesday.
Ryan Doherty and Chris Conlin each added 12 points for the second-seeded Cougars.
Chatham advances to face Mendham in the quarterfinals.
A 19-2 second-quarter burst gave the Cougars a 36-9 advantage at the half. Chatham plays Mendham in the next round.
North 2, Group III
Mendham 62, Governor Livingston 38
Kevin Skehill scored 20 points to pace the seventh-seeded Minutemen. Mendham led 33-16 at the half.
North 1, Group I
Boonton at Paterson Charter 62, Boonton 34
The 12th-seeded Bombers finished at 8-18.
North 1, Group III
Old Tappan 57, Montville 31
The 16th-seeded Mustangs trailed 26-16 at the half. Joe DelloStritto paced Montville with nine points. The Mustangs finish at 16-10
Ramapo 64, Morris Hills 52,
The No. 10 Scarlet Knights trailed 32-20 at the half. Morris Hills finished at 10-14.