Cory Linton scored 13 of Boonsboro's 17 points in the third quarter as the Warriors grabbed a 36-35 lead. Linton also grabbed six rebounds in the period.
Boonsboro led by three points in the fourth quarter when guards Andy Beard and Justin Talley hit consecutive 3-pointers to increase the advantage to 48-39 with 4:49 remaining. Victor Cullen got no closer than seven points thereafter.
Beard scored six points in the fourth quarter.
"We attacked their zone defense a little bit better in the second half," Conway said. "We just decided that we had to try to get the ball inside. We're just happy to be still alive in the playoffs. Every time that we win now, I get to spend more time with a great group of kids."
Linton had 25 points and 12 rebounds, while Beard added seven assists and five steals for the Warriors.
Victor Cullen point guard Marvin Mack scored 18 of his 20 points in the first half and added three assists. Rodney Williams grabbed seven rebounds and Nathan Coit added six for the Colts (6-10). Joseph Dorsey had three assists.
"In the second half, Boonsboro came out right away and made a run to get back in the game," Victor Cullen coach Lewie Thomas said. "We had four players in foul trouble and we mostly play seven fellows. They fought right down to the very end."
Boonsboro center Doug Nicodemus twisted his right ankle with 1:09 to go in the third quarter and had to leave the game. Nicodemus is questionable for tonight's game. At the time of the injury, Nicodemus had seven points and seven rebounds.