Fights where the challenger was the favourite over the champion

Hatton (IBO/Ring) v Pacquaio

More recently
Smith (WBA/Ring) v Canelo

Also, in both cases they broke with tradition and the champion (coincidentally both from NW England) came out first.

 

Jeffries against Johnson is a famous one.

 

I think Foreman was favored over Frazier.

 

Frazier was a 3 1/2-1 fave which flies in the face of a lot of after the fact theories in here.

 

Gomez was a solid favorite over Sanchez.

 

Interesting. I remember that Durham was dead against this fight and most people felt that Foreman was all wrong for Frazier.

 

Counting Spinks as lineal he was an underdog against Cooney.

 

I'd be confident Louis was favored over Braddock.

 

Hagler over Vito 1 ?

 

Absolutely - To the tune of Vito being 4-1.

 

Joshua vs Martin

 

Joe Frazier was a big favourite going into that fight having just beaten Muhammad Ali, then Foreman destroyed Frazier then Foreman was a big favourite to beat Ali then didn't

 

Foreman was a 3-1 underdog.