Top men's and women's winners Olympics mtn bikes Of the podium finishers in the men's and women's mountain bike race in Rio, what bike brand &amp; models did they use? Which rims?

There has been a big debate over 26, 650B and 29er inch rims. 4 years ago, during the men's race remember seeing different Rim sizes. However during this race they seem to be the same size. Does anybody know what size won out in the rim wars? 
I also noticed that if my memory serves me correctly for the top women finishers they had hard tails. But for the men's the top finishers used full suspension bikes.

From four years ago London, the racers indeed did use different rim sizes. So how about Rio?
There's a great video of Nino Schurter's Scott Spark. I'm not sure if he used the exact same bike in the Olympics, but the video from July of this year, so it should be quite similar. It has 29 inch wheels.  According to the comments in the youtube video, this is different from what he used to ride. Somebody commented that it may be in preparation for the Olympics, which favours large rim sizes.  I don't think any size has really "won". The size of rim/tire used on race day is going to depend on course conditions.   I think this is the reason for the upcoming popularity of 650b/27.5 tires. Most of us can only afford a single bike or a single set of wheels, so you have to go for a compromise.  You should also check out the GMBN Pro Bike Playlist if you want to learn more about the equipment the pros are using.