That defensive intensity - and 11 points from Cory Linton - led the Warriors to a 23-14 advantage late in the second quarter. But Urbana's Greg Hill scored the final four points of the half to trim Boonsboro's halftime lead to 23-18.
Urbana (8-13) pulled within 29-28 midway through third quarter before Linton and Doug Nicodemus scored the final seven points of the period to give Boonsboro an eight-point cushion.
The Warriors (8-15) watched the lead shrink to three before Cullen Coleman's 3-point play at the 6:44 mark, followed by Nicodemus' trey and two Linton layups pushed the lead to 49-38. Boonsboro hit nine of its final 10 free throws to ice the win.
"At the end of the game, our seniors took control," Conway said. "Linton, Coleman and Nicodemus really stepped up when we needed them."
In the girls' game, Boonsboro (2-21) turned the ball over 27 times in the first half, helping the Hawks to a 30-5 halftime lead.
Boonsboro used a 19-10 run to open the third quarter to close within 40-24, but Urbana (8-14) easily held on, scoring 12 of the game's last 18 points to seal the victory.
Samantha Smith and Jessica Griffin scored all 25 of their points in the second half for the Warriors. Griffin also finished with 11 rebounds.
"I told them (at halftime) that we were better than five points," Boonsboro coach Bernie Semler said. "(We) were real tight out there in the first half. They just had to relax. They had to cut down on the turnovers, play good defense and put the ball in the hoop."