Nicki Matz threw a one-hit shutout in Seneca Valley's 9-0 high school softball win over Shaler on Monday.

Matz, a sophomore, struck out nine and walked three in the complete game against the Titans (9-2, 9-1), who currently lead the Section 3-AAAA standings.

Mia Sipple tallied the lone hit for Shaler.

The Raiders (5-5, 4-5) tallied 15 hits, with Alexa Sisko, Jessica Neill and Cassie Bachik each collecting three of them.

Seneca Valley 400 301 1 — 9 15 1

Shaler 000 000 0 — 0 1 4

W: Nicki Matz 7 IP (9K, 3BB). L: Dobson 7 IP (1K, 2BB).

Seneca Valley (5-5, 4-5): Jessica Neill 3-1B 2R, Cassie Bachik 3-1B R, Alexa Sisko 2-1B 2B 2R, Ashley Kappeler 2-1B 2RBI, Sarah Blagg 2-1B 2RBI

Shaler (9-2, 9-1): Mia Sipple 1B

Wednesday: Pine-Richland at Seneca Valley

Moniteau 20, A-C Valley 7 — Alyssa Dailey led Moniteau's 21-hit attack with three singles, a double, three runs scored and three more batted in.

Kayla Cratty had a strong game for the Falcons with a single, double, a run scored and three RBI.

Moniteau 700 018 4 — 20 21 4

A-C Valley 000 601 0 — 7 7 8

W: Taylor Hasychak 7 IP (2K, 1BB). L: Tiffany Thompson 7 IP (1K, 7BB).

Moniteau (9-1): Alyssa Dailey 3-1B 2B 3R 3RBI, Heather McMillen 2-1B 4R RBI, Cassidy Maples 4-1B 3R 2RBI, Sydney Boben 2-1B 2R 3RBI, Emily Hiwiller 3-1B R 3RBI

A-C Valley: Kayla Cratty 1B 2B R 3RBI, Abby Wetzel 1B 2B R RBI

Today: Clarion at Moniteau; A-C Valley at Venango Catholic

North Hills 9, Butler 8 — Mackenzie O'Donnell had a single and a double, but the Golden Tornado watched North Hills rally for four runs in the final two innings.

Kallie Harper doubled home the winning run for North Hills (2-8, 2-7) in the bottom of the seventh inning.

Emily McDonald added a pair of hits and Jennifer Miller and Rhiannon Kosar each had a double for the Golden Tornado (3-7, 2-7).

Butler 400 310 0 — 8 7 2

North Hills 103 103 1 — 9 15 3

2 out when winning run scored

W: Amanda Smith 7IP (2K, 3BB). L: Emily McDonald 1.2IP (0K, 1BB).

Butler (3-7, 2-7): McDonald 2-1B, Mackenzie O'Donnell 1B 2B, Jennifer Miller 2B, Rhiannon Kosar 2B

North Hills (2-8, 2-7): Kallie Harper 2B

Today: North Allegheny at Butler

Doug Horner had a pair of hits and a RBI, but Grove City fell to McDowell 8-1 in a non-region matchup.McDowell 400 001 3 — 8 11 0Grove City 010 000 0 — 1 3 5W: Ballay 7IP (11K, 3BB). L: Dylan Osborne 1IP (1K, 2BB).McDowell: Hanson 2-1B, Warren 2-1BGrove City (7-2): Doug Horner 2-1B RBIWednesday: Grove City at Slippery Rock

Seneca Valley's tandem of Jonathan Perkins and Joe Shults reached the semifinals of the WPIAL Section 2-AAA Doubles Tournament.They opened up Monday's play with a 10-1 win over Butler's Devin Fritz and Gavin Shuler and won their second round match 10-3. In the semifinals, they fell 6-1, 6-3 and then faced Hampton's Brad Cisek and Michael Pfefferle-Gillot in the consolation match for the third and final spot in the upcoming WPIAL tournament. The Talbots' duo prevailed 6-3, 6-4.Butler's doubles tandem of A.J. May and Cam Sedwick downed Mike Chutka and Jared Wink of North Hills 10-3 in the first round.The duo, though, fell to No. 1 seeded Caleb Kramer and Brett O'Donnell of Pine-Richland in the quarterfinals, 10-3.

Will King scored six goals, but Mars was edged by Fox Chapel 14-13.Blake Thompson added five goals for the Planets (4-3).