Sprung on a fast break after Caroline Robertson made a block, Amanda Johansen received a pass and darted to the basket, drawing contact as she put North Shore up by 14 points with 30.4 seconds to go in the third quarter.
"Caroline always makes these great defensive plays," Johansen said. "Right when I saw her make that block, I knew that we had to make an opportunity out of that and I ran down the court and she found me. I knew I was going to the hoop and I was going to go as strong as I could."
Johansen converted the three-point play and had 21 points to go with 11 rebounds as she was named MVP for No. 1 North Shore, which defeated defending champion No. 2 Garden City, 74-64, in the Nassau Class A girls basketball championship Saturday afternoon at LIU Post.
It is the program's first county title.
North Shore (20-1) will face Suffolk champion Glenn (20-1) in the Long Island Championship at 5 p.m. Friday at Farmingdale State.
"This has not been a three-month thing; this has been a six-year thing," North Shore coach Keith Freund said. "That's why we have 18 girls on the bench, because they all buy in, they all believe in it."
Katie Trimmer scored 13 points and Kim Ryan (12), Sam Auricchio (11) and Liz Stutzmann (10) were also in double-digits for Garden City (18-3). The Trojans led 17-15 after the first quarter but North Shore went on a 10-0 run early in the second to take over and never looked back.
Alexandra Cantwell had seven of her 11 points in a 22-10 second quarter for the Vikings, who led 37-27 at halftime.
Nicole Scuderi (10 points) stole the ball and set up Erin Sheerin (seven points, six rebounds) for a three-point play with 5:50 to go in the third quarter. Robertson (eight points, 11 rebounds) initiated Johansen's three-point play, which made the score 55-41, with just over 30 seconds left in the third.
Garden City cut the deficit to 65-60 with 2:16 to go but did not get any closer as the game went from free-flowing to a free-throw contest in the fourth. Garden City was 10-for-15 and North Shore was 13-for-23 from the foul line in the fourth quarter.
"I kept checking the scoreboard; you get a little bit nervous. We just came off a game that we were the other team and we came up, so we know exactly how they're feeling," Johansen said, referring to North Shore's comeback win over Floral Park in a semifinal. "We weren't going to let that happen. Our team talked, we weren't going to have a letdown game. This was our game."