@FWwrestling
It has been all over the place over the years.
From 1928 to 1980 a bad points system was used. Accumulate 6 bad points and you are eliminated.
From 1984 to 1992 it was two pools with double elimination in the pools. Top from each pool wrestled for gold, second from each for bronze, third from each for fifth, etc.
For 1996 it was a single elimination bracket with repechage.
From 2000 to 2004 it was pools of three or four with the winner of each pool moving to a single elimination bracket.
Since 2008 it has been a single elimination bracket with repechage.