The Northeastern Conference is proving to be quite a heavy hitter so far in the postseason as the No. 17 seeded team in Division 3 North – Marblehead – is a win away from a spot in the semifinals.On Saturday, the Magicians played a near flawless game behind freshman pitcher Michaela LeBlanc en route to a stunning 7-3 win over top-seeded Amesbury.”You don’t see a 17 beat a one very often,” Marblehead coach Johnny Gold said. “We went up and played a good team and we just played a little bit better. That’s the bottom line.”Lucia Chalek had two hits and two RBI to lead the Marblehead offense. Olivia Venner also had two hits and Maggie Hermann drove in a run to give LeBlanc plenty of run support.”We went in and said that if we could just play our game, maybe we’d have a chance,” Gold said. “And it was one of those days.”The Magicians are at Tewksbury today (4) in the quarterfinals.Winthrop 2, Whittier 1At Haverhill, Alex Ferri struck out 14 and allowed three hits as the Vikings (11-11) upset the top seed in Division 3 North.BASEBALLSaugus 2, Greater Lowell 1At Lowell, the Sachems (7-15) stunned the top-seeded Gryphons as Dom DiPesa hurled a brilliant two-hitter with 12 strikeouts.”Dom had great command of all three of his pitches,” Saugus coach Rich Angelo said. “And the few times he got in trouble, he turned it up a notch.”Saugus scored once in the first on a Ty Kennedy single and broke a 1-1 tie in the third when Nick Freehling scored on an error.GIRLS TENNISMelrose 4, Classical 1At Lynn English, the Rams (13-4) saw their spectacular season come to an end in the opening round of the Division 2 North tourney. Sheba Neak and Stella Athanasopoulos teamed for a 6-4, 7-5 win at first doubles to give Classical its only point.”Our kids gave everything they had. That’s all I could ask for,” Classical coach Cathy Blake-Ellis said.Weston 5, St. Mary’s 0At GE Field, the Spartans (12-6) saw their season end for a second straight year at the hands of the defending Division 3 state champion. Lauren Carifio and Kelsey Barrasso played well in losses at second and third singles.Lynnfield 5, Pope John 0At Lynnfield, the Pioneers (11-6) lost only four games as they moved on to the Division 3 North quarterfinals against Ipswich today (4). Julia Broding won 6-2, 6-1 at first singles; Tori Copelas, 6-1, 6-0 at second singles; Ava Grava, 6-0, 6-0 in third singles; Karen Kelter-Jordan Miller, 6-0, 6-0 in first doubles and Molly McCarthy-Danielle Soden, 6-0, 6-0 at second doubles.Lincoln-Sudbury 5, Peabody 0At Sudbury, the Tanners played well but came up short in the Division 1 North first round.