Here's a look at high school boys' and girls' lacrosse playoff action this week.

District 1. The boys' semifinals will be played at Ridley High School on Tuesday.

The first game, scheduled for 6 p.m., will be between second-seeded Abington and third-seeded Conestoga.

Top-seeded Springfield-Delco and fifth-seeded Garnet Valley will play in the other semifinal, scheduled for 8 p.m.

The final will be played Thursday at Radnor High.

For the girls, three of the top four seeds advanced to the semifinals as well. In the semifinals Tuesday at West Chester East, second-seeded Great Valley plays the third seed, Springfield-Delco, at 6 p.m.

Top-seeded Radnor, which has outscored opponents by 61-15 over the course of the tournament, will face fifth-seeded Unionville at 8 p.m.

The championship game will be played Thursday at Great Valley High.

District 12. On Monday, top-seeded Archbishop Carroll girls will face No. 2 seed Archbishop Wood in the Catholic League title game.

The 5 p.m. game, also for the District 12 crown, will be held at Archbishop Prendergast.

Both of the boys' semifinals will be played Tuesday at Prendergast, with top-seeded La Salle playing Cardinal O'Hara at 4 p.m.

Second-seeded St. Joseph's Prep will face Lansdale Catholic at 6 p.m.

The championship game will be played Thursday at 6 p.m. at Plymouth Whitemarsh.

Inter-Ac Invitational. The second annual Inter-Ac Invitational postseason tournament final will be played Wednesday at 7 p.m. at Cabrini College's Dixon Field.

Episcopal Academy (16-5) is pitted against Haverford School (19-4).

The Fords won both meetings between the teams this year, 12-6 and 10-3.

Friends Schools. The Shipley School won its second consecutive boys' Friends Schools League Championship Saturday by beating the Academy of New Church, 12-5.

The Gators were led by junior midfielder Julius Mouser, who has committed to Rutgers University. Mouser scored four goals and had one assist in the winning effort, capping a season in which he scored 48 goals and registered 27 assists.

Sophomore goalie Ian McGibbon had 15 saves and gave up just two goals after the first quarter.

"We thought this year was going to be a rebuilding year," Shipley head coach Mark Duncan said.

"We graduated a four-year starting goalie and four starting defensemen. The kids came together and the younger guys stepped up."