Here is a link to a very interesting breakdown of the techniques used in the Pan Ams this year. All you stats geeks out there should get a kick out of it. Some interesting highlights: Armbars were the most common submission De La Riva guard was the most successful position from which to initiate sweeps The first person to score won 82% of the time 77% of submissions occurred from the top Overall, an interesting overview! Now the science nerd in me is inspired to keep track of things like this for local competitions too...
Interesting! There was a great little article in Jiu Jitsu Magazine regarding exactly this type of data.... A quick flip turned up the article: An Introduction to Strategy and Tactics in Brazilian Jiu-Jitsu by Daniel Faggella Page 94, Oct/Nov issue 2011 but there was another one - I'll have to dig through the stack of them kicking around. Very interesting topic... and a good amount to do with sports psychology as well!