When Delsea had its best chance to catch up late, it was Flegler who shut the door. Tyrone Simmons hit a three-point basket for Delsea to make the score 56-53 with two minutes left. But on the ensuing possession, against a frantic full Delsea press, Flegler took a skip pass on the outside wing, drove past Shaun Grimes under the basket and tossed in a reverse, spinning layup for a 58-53 lead.
Delsea never again got within four.
Gloucester improved to 20-4 with the win, which coach Mike Burke said was a huge lift after a loss to Gloucester Catholic on Saturday. Already Tri-County Royal division champion, Delsea is 18-2 but has lost two in a row.
Delsea's 6-foot-4 senior, Robb Cash, and Milton Bowen kept Gloucester's interior game bottled up in the early going, helping build a 21-9 lead midway through the second quarter.
Delsea's nimble point guard, Elvin Estremera, kept Gloucester's Keith Gorman in check in the backcourt, preventing the Lions guard from getting into a running game with his twin brother, Sean.
But when Cash picked up his second foul and went to the bench with a little more than four minutes to go in the half, Flegler started to get hot and Gloucester went on a 13-4 run and trailed by only 28-25 at halftime.
One minute into the third quarter, Estremera went down with a turned ankle and did not return. Freed from Estremera's harassment, the Gormans began shooting passes in to Flegler, who time and again hit lay-in shots over Cash.
``I wouldn't say he was not contesting shots, but he was playing real passive,'' Flegler said.
``I had a bad game,'' Cash said. ``He was getting position on me and I was trying not to pick up the fouls.''
Cash, who scored eight points, less than half his average, missed a slew of shots under the basket. He said an old shoulder injury was bothering him from early in the game.
``They played a little harder than us,'' Delsea coach Bob Riles said.