This is a lobby match I've had about a month ago with my friend Pictured Mind. We were both on very low health and time was ticking. As we fought, we were both very surprised to see that the fifth round ended in a draw due to time up! The only way to make this happen is that both players have an equal amount of HP left in a round and letting time run out. This will allow both players to have a sixth round, which is a very rare occurrence.
P.S.: Pictured Mind was the one who won the match, for anyone curious.