When there’s a tie for 1st place in a Championship or Varsity section, MD Chess determines the winner either by tiebreak or by playoff, depending on the tournament. To see which method MD Chess would employ at today’s tournament, go to P20: If there is a tie for 1st place in Procedures for Players and Spectators at MD Chess's Scholastic Tournaments.
Tiebreaks are explained here: Trophies Awarded to Tied Players in Order of Tiebreaks—Not in Order of Subsequent Unofficial Ratings.