Tanquinho won the match according to the judges. Rafa Mendes seems to disagree. This match took place at the Abu Dhabi Pro 2011. Lots of counters to counters to counters...and lots of 50/50 guard play.
Because heel hooks are illegal in gi matches, it seems that the 50/50 is more of a defensive measure...not sure though.
Let me know what you think.