#4 UFC welterweight division - 1.09%
A weight class that has one of the most fearsome power punchers in the UFC as its champion, the welterweight division boasts of a 1.09% knockdown rate. Kamaru Usman, who has showcased his freak power against Gilbert Burns and Jorge Masvidal in the recent past, is at the pinnacle of the division.
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Other exceptionally talented strikers like Stephen 'Wonderboy' Thompson, Vicente Luque and Leon Edwards round off the top five. Even historically, the welterweight division has been host to a plethora of world-class fighters like Matt Hughes, Georges St-Pierre, Tyron Woodley and Robbie Lawler.
Welterweight promises to keep this record intact, with the likes of Khamzat Chimaev, Li Jingliang, Michel Pereira and Niko Price having many years left at the top level.
#3 UFC light heavyweight division - 1.4%
The UFC light heavyweight division has been host to some of the greatest fighters of all time. Jon Jones may not be part of the weight class anymore and the unassuming Jan Blachowicz might be the champion, but there are some serious killers at 205 lbs.
The light heavyweight division has a knockdown rate of 1.4%, showing just how dangerous and fickle it is. The current roster, which features exciting fighters like Jiri Prochazka, Anthony Smith, Dominick Reyes and Johnny Walker, has managed to keep itself alive and kicking despite Jones' departure.
Several light heavyweight fights over the last year have ended in knockouts. While Blachowicz dispatched Luke Rockhold and Reyes in violent fashion, Prochazka took things one step further against Volkan Oezdemir and, unfortunately for him, Reyes again.