Congrats on the win!  In tournaments, the system only pairs players with others who are within a similar point range.  If no one close to your score is available, you won’t be drawn into a match, even if others are still playing.  I’m not sure of the exact point margin used to determine pairings, but perhaps an Administrator can confirm that for us.

— An0nCiPher
P.S. Before creating a new thread, remember to check the forum or FAQ section — your answer might already be there.