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I thought this was legitimately interesting- from featherweight to heavyweight, there is a nearly-linear correlation between the % of fights in MMA won via KO/TKO, kind of reaffirming the fact that the more body weight you have to throw, the harder you can punch. However, it is also interesting to note that the rate starts to diminish after the heavyweight mark, but to me, I'm more surprised that the leveling off didn't start at a lower weight class.
On a completely separate note, congrats to Josh Barnett on a sick arm triangle finish of Segei Kharitonov at Strikeforce yesterday. Very pretty: