Fighting sports are tough. But in real life it rarely matters, it's about mental strength, readiness, weapons and strategy. There was a getbig thread about "berserker strength" or something and it detailed a home invasion by some random guy into the house of an elite mma fighter. Iirc the mma fighter froze up and was not able to deploy his skills. I don't remember exactly but that was the gist of it iirc.