It is total games won minus total games lost, between everyone in the bracket.
Let’s say you have:
Player A Won 3 matches 3-0. Won 2 matches in 2 and 1 match in 3.
Player B Won 1 Loss 2. Won the 1 match in 3, lost 1 match in 3, and 2nd in 2.
Player C Won 1 Loss 2. Won the 1st match in 3, lost the 2nd and 3rd match in 2.
Player D Won 1 Loss 2. Won the 1st match in 3. Lost 2nd and 3rd match in 3.
Player A is undisputed 1st as they didn’t lose any matches.
Player B is 2-1, 1-2, 0-2. So they are at -2 games.
Player C is 2-1, 0-2, 0-2. So they are at -3 games.
Player D is 2-1, 1-2, 1-2. They are at -1 games.
Player D is 2nd, B is 3rd, C is 4th.
If there was a 3 way tie, broken down to a 2 way tie, then the 2 way tie is then broken up by H2H result.
If 3 way tie in games, goes down to points. If 3 way tie in points, you draw lots.
