Depends what you by worst resume. If you mean weakest or least recognisable opponents beaten, you've got the likes of Bob Foster, Carlos Zarate and Pascual Perez. All brilliant, dominant champions, without a fellow ATG on their win resume. If you mean most prime losses to non great fighters, Fritzie Zivic would be in with a shout, if you consider him an ATG.
Corbett. It’s genuinely impressive how he used to have a legacy as one of the GOATs for decades when his resume was poor even compared to the others from his era. Washed Sullivan, washed Mitchell, rookie Choynski, a pudgy Kilrain, a middleweight who never really established himself at heavy in Kid McCoy. His biggest accomplishment is going 61 rounds with an injured Peter Jackson.
Someone on here a couple of days ago called Jersey Joe Walcott a "journeymen" that just happened upon a world championship. Now I'll say that calling Walcott a journeymen is pretty disrespectful but when you just glance at his resume.....................it's got some everest highs.................but that loss column has some death valley lows.
Finito Lopez might be the greatest fighter with the most underwhelming resume as far as opponents go.
