5-February 2, 2010, Strawberry Mansion (Phila) 88, Imhotep Charter (Phila) 82 (5 Overtimes).  It was 46-46 at the end of regulation time.   The score is 78-78 after four overtimes.  (Inquirer, Ted Silary story)  Ted's note: I covered an eight-OT game in 1972, back when OT periods were three minutes rather than four. I also have vague memory of a five-OT CL game -- maybe North vs. Wood? -- and a five- or six-OT Inter-Ac game that involved Haverford School? Maybe against CHA? Not positive.)
5-On February 3, 1977, Beaver Falls defeated New Castle 84-75 in 5 overtimes.  The game was played at Beaver Falls.  (Credit:Mark Salamone)
5-Jan 15, 2010, New Brighton outlasted Riverside in a thrilling Class AA Section 2 contest, upending the visiting Panthers, 82-80, in five overtimes. Josh McFrazier scored 31 points for New Brighton  and Mason Marion netted 31 for Riverside.   (Pittsburgh Post Gazette)
4-On Dec. 9, 1989,  Valley defeated Highlands, 61-54, in four overtimes. It was the consolation game of the former Alle-Kiski Valley Tip-off Tournament at Highlands HS. It was only the second game in the high school career of Valley's Tom Pipkins, who scored 16 points. Pipkins would go on to become the WPIAL's all-time scoring leader with 2,838 points.  (George Guido, Tarentum Valley News Dispatch)
4-Shanksville-Stoneycreek defeated Father Geibel in four overtimes to win the 1976-77 PIAA Class A Semifinals (i.e., the Western Finals) held at Hershey Arena.  That was the last year the PIAA sent four teams in each classification to Hershey.  Shanksville-Stoneycreek lost the PIAA finals the next day; Father Geibel also lost the consolation game.  (Credit: John Reeder)
4-Portville (NY) beat Oswayo Valley 64-61 in four overtimes. (12/27/07) (Chris Rossetti, Co-Editor D9Sports.com)

2/`6/10, Niwot (Colo.) High School defeated Roosevelt High School 104-101 in four overtimes in the the Northern Conference Tournament Consolation bracket semi-finals.  (Credit: Bruce W. (Biff) Warren, Niwot, CO)