Because it's based on your confidence points. Like I had 35 points on Utah over BYU. So when Utah won, I got 35 points. The more certain you are that a team will win, the more confidence points you assign. For instance, I am most confident about whoever is playing Baylor will win. (I can't even remember who, but I know Baylor doesn't have a QB, so I think they are dead in the water.). So I assigned them 41 confidence points (or whatever was the highest point total you can assign.) if Baylor loses, then I get 41 points.
BTW I was confused at first when I went to make my picks. I didn't know how it worked, so I had to read up on it. Also I thought it was annoying that you had to "move" you picks around to assign them points (versus just being able to click on a drop down menu for points like 1-41).