BoysClass AAA

Upper St. Clair (10-6-1) at Seneca Valley (11-6), Tuesday, 8 p.m.: The Panthers have gone 7-5 since a four-game winning streak early in the season. ... The Raiders defeated Upper St. Clair 3-2 in the first round of the 2005 WPIAL playoffs.

Butler (8-6-4) at Penn-Trafford (15-3), Tuesday, 8 p.m.: After starting the season 0-4-3, Butler has gone 8-2-1 in its last 11 games, finishing second in Section 2-AAA. ... Penn-Trafford gave up six goals in its 10 Section 1-AAA games, going 9-1 in those contests.

Class AA

Freeport (14-3-1) at Chartiers Valley (13-4-1), Monday, 8 p.m.: The Yellowjackets placed third in Section 2-AA behind Knoch and Mars, but defeated both once during the regular season. ... Chartiers Valley, champion of Section 5-AA, made it to the WPIAL Class AAA semifinals last season before dropping down a class this year.

GirlsClass AAA

Hopewell (12-6) at Mars (12-4-2), Saturday, 4 p.m.: The Planets defeated Hopewell 4-1 Sept. 13 at the Mars Athletic Complex. ... Mars enters postseason play on a six-game winning streak, outscoring its opponents 18-4.

Class AA

Freeport (13-4-1) vs. St. Joseph (10-7) at Fox Chapel, Saturday, 3 p.m.: A five-game winning streak within Section 3-AA in September helped the Yellowjackets place third behind Springdale (15-2-1 overall) and Deer Lakes (14-4). ... St. Joseph was 2-3 in Section 6-AA play before a late-season surge landed the team at 7-5 and third place in the standings.