LAS VEGAS (Dec. 03, 2000) – Tonight at the Plaza Hotel, in Las Vegas, Nevada, and televised on Univision,  Mia “The Knockout” St. John , 33, weighing in at 126 lbs., fought Amy Yerkes, 125,  in a four-rounder.  St. John moved her record to 19-0-0  (10 KO) when she defeated Yerkes by a 1:33 TKO