I'd like to be able to say that this is the worst movie I've ever seen, but I can't because, somehow, I watched it till the bitter end. There's plenty of films (Taxi, Amelie, Closer and a host of lesser known movies) where I called it quits well before the conclusion.
The story of TKO is ridiculous, of course, with heavy borrowings from Van Damme's "Kickboxer". At least that movie made an attempt to stay within the bounds of credibility. This film doesn't bother with such constraints. The acting is universally appalling, but special mention goes to Samantha Alarcon, playing Skyler. This person should never again be allowed on celluloid. In fact, she should never again be allowed to open her mouth. I guess that's a feat of a kind, to stand out in a movie where the acting is this bad. Dianna Agron was kind of cute though.
The other thing is - why call it TKO? Technical Knock Out doesn't seem to quite apply to fights where "You win. Or you die". Maybe it stands for something else. "Total Krap. Orright?" It gets 2/10 - 1 because I made it to the end, 1 for Agron.