Downingtown West will face West Chester Rustin in the league's playoff semifinals at Oxford on Saturday, and Downingtown East will play American Division winner Great Valley.
Also in the Ches-Mont, Great Valley tuned up for the playoffs with a 44-39 win at West Chester Rustin. Danielle Strang gave the Patriots 11 points, and Kelly Sugalski scored seven of her 10 in a 19-7 fourth-quarter rally.
Unionville guard Alison Lewis rebounded a missed Kennett shot in a tie game, dribbled the length of the court, and hit a 15-foot jumper at the buzzer to give the host Indians a dramatic 34-32 victory. Lewis had 17 points and 10 rebounds.
Alie Alkins' layup with 3 seconds left made Sun Valley a 36-34 winner at Oxford.
Bicentennial. Morrisville finished a 16-0 league schedule with a 29-25 win over visiting Jenkintown.
Down by five points entering the second period, the Bulldogs rallied with Michelle Evans' six second-quarter points and Kievanna Lacey's 12-point game.
Delco Christian spotted host Christopher Dock an 18-13 halftime lead before rallying to win, 33-30. Stacey MacArthur saved 12 of her game-high 21 points for the fourth quarter.
Phil-Mont Christian's Jana Goodman, who finished with 17 points and 15 rebounds, made all of her six foul shots in the final minute to pull out a 42-35 win at Plumstead Christian.
Central. Haverford High tuned up for Saturday's league championship game with Upper Darby by beating Lower Merion, 43-34, in the semifinals. Jaclyn Gantz and Julia Gantz scored 10 points each for the Fords.
Catholic. Archbishop Wood got points from 13 players, including six by Alex Heck, and pinned a 46-20 setback on host Conwell-Egan.