John DeWalt's grand slam highlighted a six-run seventh inning to send the Knoch baseball team to an 8-3 victory over Hampton Monday.

Cullen Hinderliter homered and pitched a complete game for the Knights.

In other action:

n Luke Gruber had two of Mars' four hits in a 4-3 loss at Ambridge.

Knoch 010 100 6 8 9 1Hampton 021 000 0 3 6 2W: Cullen Hinderliter 7 IP (6 K, 4 BB).

L: Runco 3 IP (5 K, 4 BB).

Knoch (2-5, 1-0): Nathan Junk 2-1B, RBI; Cullen Hinderliter HR; John DeWalt GSHR

Hampton: Moffitt 2R HR

Wednesday: Ambridge vs. Knoch at Pullman Park

Mars 020 100 0 3 4 2Ambridge 300 000 1 4 7 2W: Luke Burton 7 IP (12 K, 3 BB).

L: Nick Comport 2 IP (0 K, 0 BB).

Mars: (2-4, 0-1) Luke Gruber 2-1B, Donnie Trapp 1B R, Alex Cascioli 1B 2 RBI

Ambridge: John Sherrock 1B 2B, Kolby Addis 2-1B R RBI

Wednesday: New Castle at MarsSoftballKarly Kaufman pitched a five-inning two-hitter with nine strikeouts and had a double and a home run to lead A-C Valley to a 10-0, five-inning victory over Tidioute Charter Monday.

Tidioute Charter 000 00x x 0 2 4A-C Valley 170 2xx x 10 5 3W: Karly Kaufman 5 IP (9 K, 0 BB).

L: Sadie Billingsley 4 IP (1 K, 6 BB).

Tidioute Charter: Sadie Billingsley 1B; Caitlin Silvis 1B

A-C Valley (1-0): Shannon Bartley 1B; Kaylin Strauser 1B; Brandy Jackson 1B; Karly Kaufman 2B, HR

Today: West Forest at A-C ValleyBoys TennisAt the WPIAL Section 3 singles tournament at the Oxford Club Monday, Butler's Matt Slamecka defeated Shaler's Gabe Mangold 10-0, Pine-Richland's Mike Matthews 10-4 and North Allegheny's Matt Kosovec, the No. 1 seed, 7-5, 6-4.Slamecka will face North Allegheny's Matt Smith at 1 p.m. today in the finals.Butler's Evan Kowalski defeated Seneca Valley's Rob Klasmier 10-0 before falling to Smith in the second round 10-3.Girls Lacrosse

Bethel Park 6, Butler 5 The Tornado received goals from Brittney Miller, Chelsey Rock, Rachel Wilson, Amanda Huey and Liz Manuel, but were edged by the Black Hawks.Butler (2-4) will play at North Allegheny Wednesday.

Baldwin 10, Knoch 6 Krissy Harbison netted two goals in the Knights' loss to the Highlanders.Also scoring for the Knights (0-5) were Brooke Balliet, Paige Macadaeg, Stephanie Eagal and Caitlin Beron.Boys Lacrosse

Butler 13, Central Catholic 3 Tyler Kotch and Cole Harvey each scored three goals while Cody Conklin, Nathan Barthlow and Jarrod Oesterling each added two for the Golden Tornado (3-3).Pat Hitchan also scored for Butler, with Kotch adding two assists and Conklin one.