Thornton Academy took advantage of three walks and an error in the fourth inning to score four runs as the Golden Trojans opened their baseball season Friday with a 6-3 win over Portland in Saco.

Portland led 2-1 going into the bottom of the fourth, but Josh Penney led off with one of his three hits, and walks to Henry Lausier, Evan Beaudette and Jeremiah Chessie forced in a run. Brayden Duane then put the Trojans ahead with a two-run single.

Josh Kopetski went six innings to earn the win, allowing four hits, one walk and two unearned runs while striking out six.

Henry Bibeau had a single, a double and two RBI for Portland.

SOUTH PORTLAND 4, WESTBROOK 0: Andrew Heffernan struck out 11 while allowing only one hit as the Red Riots shut out the Blue Blazers in an opener at Westbrook.

Heffernan needed just 69 pitches and faced the minimum 21 batters. Westbrook’s Ben Eugley led off the second with a single but was doubled off first after a line drive to right fielder Hudson Iacuessa.

Nolan Hobbs, Richie Gilboy and Nick Swain all had two hits for South Portland. Gilboy and Swain each drove in a run, as did Heffernan, who also scored twice.

KENNEBUNK 9, DEERING 0: Quinn MacDonald pitched a one-hitter with 13 strikeouts, and Max Andrews hit a grand slam as Kennebunk won a mutual season opener at home.

A double by Jackson Forrest in the fifth inning was the only hit for Deering.

NOBLE 2, BONNY EAGLE 1: Aidan O’Connor pitched a four-hitter as the Knights opened their season with a win over the Scots in North Berwick.

O’Connor struck out seven, walked two and gave up just an earned run in the second inning.

Devin Place had two of Noble’s three hits off Cam Marcello, who recorded seven strikeouts and issued only one walk.

MARSHWOOD 8, BIDDEFORD 2: Tyler Hussey’s two-run single highlighted a five-run fifth inning that propelled the Hawks to a season-opening win at Biddeford.

Hussey and Ben Garrepy each had two hits for Marshwood, which added three runs in the seventh. Noah Fitzgerald earned the win, allowing a run on five hits while striking out eight and walking one in over five innings.

Chase Magnant led Biddeford with a pair of doubles.

SANFORD 3, WINDHAM 2: Ben Gill pitched a six-hitter, and Tyler Sevigny had two hits and a run scored to help the Spartans open with a victory in Sanford.

Tanner McCann drove in two runs and Scott Long had an RBI single for Sanford, which totaled just three hits but took advantage of four Windham errors.

Alex Wing had two hits and an RBI for Windham.

MEDOMAK VALLEY 4, LEAVITT 2: Matthew Holbrook hit a single and a double and pitched a four-hitter to lead the Panthers to a season-opening win in Turner.

Aaron Reed also had a double and Chase Peaslee contributed two singles for Medomak.

Leavitt pitcher Will Keach allowed four unearned runs in the fourth inning. He led the Hornets’ offense with a single and a double.

Leavitt scored its runs in the sixth.

SOFTBALL

SCARBOROUGH 5, GORHAM 4: Angelina Pizzella hit a two-run homer to help Scarborough (1-0) build a 5-1 lead, and the Red Storm held off the Rams (0-1) in Scarborough.

The Red Storm were held to four hits by Gorham’s Amber Bretton but capitalized on six walks. Bretton also had 11 strikeouts.

Andi Cloutier was 3 for 3 with an RBI and a run scored for the Rams. Winnie Dubail and Makayla Quintal each had two hits.

Scarborough pitcher Natalie Moynihan gave up nine hits and four walks while striking out nine.

SOUTH PORTLAND/WESTBROOK 10, PORTLAND 0: Grace Wallace hit a triple and a single, and Baylie Littlefield pitched a three-hitter as the Red Riots opened with a five-inning home victory.

The hosts led 3-0 through three innings, then broke the game open with a six-run fourth.

OXFORD HILLS 10, CAMDEN HILLS 0: Gigi DeVivo and Kyeria Morse each had three hits in a 14-hit attack as the Vikings beat the Windjammers in a five-inning season opener at Paris.

Miah Gallan hit two triples and Kaydence Morse drove in three runs.

Maya Stone got Morse’s only hit.

GIRLS’ LACROSSE

BIDDEFORD 15, BONNY EAGLE 2: Abby Bouffard scored five goals and set up two as the Tigers (3-0) rolled past the Scots (0-1) in Biddeford.

Cece Keller and Danielle Emerson each added three goals, and Keller also had three assists. Biddeford goalie Nataliah Martinez stopped five shots.

Lauren Manson and Grace Dixon scored for Bonny Eagle.

FREEPORT 14, LAKE REGION 3: Kate Tracy, Lana DiRusso and Mia Levesque all netted three goals for the Falcons (3-0) in a win over the Lakers (1-2) at Naples.

Freeport also got two goals from Reed Proscia and one each from Ava Stone, Skylar MacDonald and Gwen Dunham. Tracy was credited three assists, DiRusso had two, and Levesque had one.

Ashley Pelletier scored twice for Lake Region.

LINCOLN ACADEMY 15, ERSKINE ACADEMY 6: Marley LeBel paced Lincoln (1-1) with six goals and two assists in a win over Erskine (1-2) at South China.

Mariam Delisle added five goals, Celia Brinkler scored twice, and Abby Kopp and Allison St. Cyr also scored for Lincoln.

BOYS’ LACROSSE

WELLS 15, MT. ARARAT 1: Gavyn Petrie collected six goals and five assists to lead the Warriors (2-1) to a win over Eagles (1-1) at Wells.

Eli Steere added three goals and three assists. Six others chipped in with a goal apiece.

Zander Kirk scored for Mt. Ararat.