Incorrect. About half do and the others that don't go to a decision where both guys are gassed to hell.
Wrestling is great because exactly two HWs have great ground games off their back and once you put a fat boy on his back, they're usually screwed. Like a turtle basically.
Miocic vs Arlovski - KO in 0:54
Overeem vs Dos Santos - KO in round 2
Ngannou vs Henrique - KO in round 2
Gonzaga vs Erokhin - Decision
Hunt vs Silva - KO in 3:41
Rosholt vs Struve - Decision
Lewis vs Pesta - KO in round 3
Magomedov vs Jordan - Decision
Barnett vs Nelson - Decision
Arlovski vs Mir - Decision
Rosholt vs Johnson - Decision
Struve vs Nogueira - Decision
Silva vs Palelei - KO in round 2
Mir vs Duffee - KO in 1:13
Omielanczuk vs De la Rocha - KO in 0:48
Jordan vs Lewis - KO in round 2
Rothwell vs Mitrione - SUB in 1:54
Werdum vs Velasquez - SUB in round 3
Arlovski vs Browne - KO in 4:41
Miocic vs Hunt - KO in round 5
Hamilton vs Omielanczuk - Decision
Filipovic vs Gonzaga - KO in round 3
Johnson vs Abdurakhimov - KO in 4:57
Rosholt vs Copeland - KO in round 3
Overeem vs Nelson - Decision
Lewis vs Potts - KO in round 2
Mir vs Silva - KO in 1:40
Pesta vs Erokhin - Decision
Jordan vs Cannonier - KO in 2:57
Hm, only 9 by KO in the first.