With under 10 seconds to play and trailing by 1, Trinity's Briston Bennett kicked out a pass on the right wing to Joel Robertson who nailed a triple with 4 seconds on the clock to put the Warriors up 36-34. That proved to be the game-winner as Trinity stunned Notre Dame, 36-34.
Robertson led the Warriors with 13 points while Daniel Woods added 8. Jaidyn West tallied 12 for the Fighting Irish.
Trinity will host Pendleton County in the regional final, and Notre Dame will travel to Tucker County on Thursday at 7 p.m. for a shot at the state tournament.