Swenson's basketball team swatted away 17 shots by visiting Mastbaum, but the Lions still needed a late basket by Marcus Tillery to pull out a 49-47 win in one of seven Public League games decided in the closing seconds on Thursday afternoon.
Tillery, a 6-foot-6 senior center, piled up nine of his team's blocked shots to go with 11 points, 12 rebounds and two assists, capped by his putback with 3 seconds to play. Jay Hardy chipped in with 14 points, 5 rebounds and 3 blocks.
Also in the Public League, Paul Robeson's Aaquil Craft-Brown sank two foul shots with 5 seconds left to secure a 50-48 win at Freire Charter. Craft-Brown had 13 points, 9 assists and 4 steals.
Prep Charter squeezed past visiting Bartram, 49-48, on Byron Whiting's jumper from the foul line with 3 seconds remaining to give the Huskies their first win of the season.
Jamie Betancourt capped a 19-point game by hitting a jumper from the top of the key with 2 seconds left, making Kensington a 56-54 winner at Mastery Charter South.
Fels' Nijay Kelly had 21 points, including a game-winning basket with 1.8 seconds to play that beat host Washington, 57-55.
Lincoln secured a 53-50 win at West Philadelphia when Dante Taylor hit 2 free throws with 3.5 seconds left. Michael Bowlers contributed 19 points and 10 rebounds.
Masterman's Mike Sturdivant went over 1,000 career points with a 29-point game in a 71-55 victory over visiting Ben Franklin. Jack Christmas added 14 points and 14 rebounds.
Imhotep Charter stayed atop the Division A standings by edging host Constitution, 49-47, with Khyree Wooten's 17 points and Kamani Jordan's 14.
Vaux's James Cole poured in a career-best 36 points, highlighted by seven three-pointers, as Vaux beat visiting Frankford, 67-49.
Lamberton's Anthony Fagan made five threes in a 23-point performance, and also notched six rebounds and six assists amid a 74-58 win over visiting Randolph. Andrew Hoven collected 14 points and a dozen boards.
Del-Val. Leading by one point at halftime, Penn Wood followed 12 third-quarter points by Malcolm Richardson (22) to a 71-54 win at Chichester. The Patriots forced 29 turnovers.
Glen Mills' George Walker (29) hit a running layup at the buzzer to force overtime, but host Academy Park got two foul shots by Terran Hamm with 46 seconds to go in the extra period to prevail, 71-70. Charles Dorsey led the Knights with 22 points and 11 rebounds.
Richard Granberry's 12 points, 10 rebounds and 2 blocks kept Chester (11-0) unbeaten in a 63-32 win over visiting Interboro.
Ches-Mont. Great Valley broke open a close game with a 30-13 second half, dropping visiting Oxford, 53-34. Sophomore Mikal Bridges gave the Patriots 8 points and 11 rebounds, and Brad Sherry scored 11 of his 20 points in the final period.
Bishop Shanahan's third win, a 54-47 decision over visiting Avon Grove, was clinched by 13-for-16 fourth-quarter foul shooting, and balanced scoring by Ryan Conrad (13), Dae'mond Pierce 912) and Devon Seeney (10).