Dean Mazlish leaped three times as if there were a trampoline underneath him, using the seconds before his teammates mobbed him to process the reality that his Sidwell Friends boys’ basketball team was the D.C. State Athletic Association Class AA champion.

Seven seconds earlier, with No. 19 Sidwell Friends trailing by two, Mazlish dribbled past Wilson’s full-court press and ignored Coach Eric Singletary’s play call, thinking there was too little time.

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