A while back, our Indonesian friends organized a multi-day overclocking competitions. The Amateur OverClocking Tournament ("AOCT") featured only amateur overclockers, and required interested parties to sign up and go through an interview session before allowed in the competition. In total there were 35 teams of each two overclockers participating.
Hendra from Jagatreview sent me this clip showing the highlights of the AOCT event. From the looks of it, everyone had a blast! Check it out!