FITCHBURG -- Ayer Shirley trailed by seven points at the half during Monday's Monty Tech Summer Basketball League game against rotary rival Parker Charter.

The Ayer Shirley Panthers, with only four active players, came from behind to stun Parker 42-41.

Ayer Shirley's Peter Fredericks nailed the game-winning jumper from the right corner with 5.7 seconds remaining. The Panthers with the win move into a two-way tie with Bromfield for the top record in Division 2 at 7-2.

"We were trying to run with them in the first half and it just was not happening," Ayer Shirley summer league head coach Mark Jenkins said. "It was shocking that we only had four, but that group really worked their butts off tonight."

Fredericks finished the game with 13 points and seven rebounds.

"Peter played his first spring of AAU ball for me and it has really helped him," Jenkins said. "He has that broad body and we keep telling him to use it to his advantage. He did that tonight. One thing that I have watched Peter develop is confidence. He looked at Patano during the time-out near the end of the game and said 'pass it to me, I'm open.' That was great to see Peter hungry for the basketball in crunch time."

Parker Charter put together a 11-6 opening flurry behind the sharp-shooting of Kyle McNamara. McNamara finished with a team-high 12 points, 3 assists and two steals.

Ayer Shirley fell behind by as much as nine points and ended the half on a 4-0 run. The Ayer Shirley Panthers picked up where they left off scoring the first five points of the second half on a pair of free throws by Patano and a driving lay-up by Jon Durban (12 points, 6 rebounds, 2 blocks).

Ayer Shirley scrapped its way back into the game with 11 minutes remaining when Tyler Mayo buried a mid-range jumpshot to knot the score at 31-31.

As soon as it looked like Ayer Shirley would take the lead, Parker Charter came roaring back.

The Ayer Shirley four never led in the game until the final seconds, when a Fredericks jumper sealed it.

Ayer Shirley has a good contingent of kids playing AAU basketball in the off-season, which is a contributing factor to its success this summer.

"Durban is in his second year playing AAU for me and he has really started to develop some confidence," Jenkins said. "We are 7-2 right now, and we will definitely take it. We are right up there with Bromfield. The Trojans battled us tough the second time we played them."

Ayer Shirley has five more games in the regular season before it tackles the Division 2 Monty Tech Summer Basketball League playoff slate.

Follow Ed Niser on Twitter/Tout:@EdNiser.