Ronda Rousey is the most famous female MMA fighter in the world. One of her most impressive wins was her knockout of Alexis Davis in 2014.
At the time, Ronda Rousey held the record for the fastest female UFC win, a record she later broke in 2015.

In her match against Alexis Davis, Ronda Rousey only needed 16 seconds to win. She stunned her opponent with her first punches.

The audience could easily count that Ronda Rousey threw a total of 12 punches without missing a single one. After signaling to stop the match, the referee even had to explain the situation to Alexis Davis when this boxer showed signs of being unconscious.