I'd honestly have to say the Fury v Wilder win was bigger than the Ali/Foreman win. With Ali, and I don't know why they had Foreman so high up on the odds, but Ali was an Olympics Gold medalist, more mature than Foreman and had more experience and was much better boxer.

With Fury, NO ONE gave Fury a chance. He was a coke-head fresh off of a binge. Amazing!!