There were 205 hands at the final table. You can see them all at
http://www.pokernews.com/live-report...t-holdem/day7/
I made a chart of all the results, and ended up with a total of 204 hands. Close enough for online.
Anyway, of these 204, 28 came to a showdown and 25 a walk for the big blind.
Yang was involved in 22 of the 28 showdowns. 9 of these were checked all the way or involved a small bet. He lost 7 of them
The other 13 showdowns were all-ins. At the time the money went all in he was better five times and lost two, worse three times and lost two, even five times and lost two. So he should have won ~7.5 and in fact won 7.
Of the 151 hands someone won with a bet without having to show down, Yang won 64. Either he had an incredible run of good cards or he outplayed everyone else. Unless ESPN shows hole cards of all the hands we won't know for sure, but the latter seems much more likely.
And Yang received 16 of the 25 walks, attributable to his aggressive style.
Seems like a very well-deserved victory to me.