Top-seeded Groton-Dunstable defeated No. 9 Wellesley, 3-1, in the Division 1 Central/West girls volleyball quarterfinals earlier this week.
The Crusaders split the first two games (25-18, 22-25) and then took the final two (26-24, 25-7) to improve to 20-1.
G-D was scheduled to host Westford Academy in the Sectional semifinals on Thursday night, after the Voice's publication deadline.
The other Central/West semifinal had Concord-Carlisle taking on Hopkinton. The winners meet Saturday in the final.
Division 1 Central/West
Leading the offense for the Crusaders' were Callie MacPherson (19 kills), Lily Blodgett (12 kills), and Brecken Gingras-Jodice (8 kills). Jordan Wynn had 27 assists.
Peter White had 10 aces and 12 digs.
"We had solid serving from the team, which helped keep Wellesley out of its system," said G-D head coach Lori Herberich. "Our middles hit very well and the whole team stepped up and was very focused. We had an awesome home crowd which showed tremendous support for the team."
The Crusaders were slated to host Westford Academy in the semifinals on Thursday.
In battle of Dual County League rivals, powerful Concord-Carlisle came out on top.
While Acton-Boxboro ended with a 14-5 record, Concord-Carlisle (18-1) advanced to host Hopkinton High School on Thursday night.
The Grey Ghosts defeated the Rockets in their Division 1 Central/West quarterfinal.
The scores of the sets were 25-22, 23-25, 25-21 and 26-24.
Structure and communication were clear focuses for the fourth-seeded Grey Ghosts (18-2) heading into this matchup, with seniors Emily Doolin and Paige Kacherian constantly in the middle of the action and taking charge.
"I think overall tonight we transitioned very well," Westford head coach Brandon Eang said. "Collectively we did a good job."
Doolin registered 13 digs and often started those transition plays that turned into points. Kacherian had four digs on the night, as well as being one of the team leaders in passes, much to the delight of a large and vocal crowd.
Westford Academy junior middle hitter Elise Sepe played an excellent game, recording eight blocks and asserting herself as a presence up front for the Grey Ghosts.
It was the Riley Sanderson Show in Devens.
Sanderson tallied four goals to power the Parker Charter girls soccer team to a 6-2 drubbing of Notre Dame of Worcester during a Division 4 Central quarterfinal on Tuesday.
Elsewhere, North Middlesex was eliminated by Algonquin, 4-0. Sixth-seeded North Middlesex posted a final 12-5-3 record.
In Parker's victory, Notre Dame of Worcester actually took a 1-0 lead, but then Sanderson took over.
Parker's star tied it at 1-1 and then added three more goals for a memorable four-goal outburst. No. 2 Parker (11-4-4) was schedule to play Quaboag on Thursday in Lunenburg in the Sectional semifinals, a game that took place after the Voice's weekly deadlines.