User blog comment:StrawHatDavid/A Few Things No One Metioned/@comment-4605926-20130418111417/@comment-4605926-20130418193135

The fact that he is a New World pirate captain and a super rookie doesn't have anything (well almost, that doesn't change the validity anyway) to do with his bounty. My point is that the bounty doesn't accurately reflect the respective capabilities of any criminal it is assigned to. The fact that he is a New World pirate captain and a super rookie implies that he is powerful, the bounty less so. As for Rebbeca vs Spartan - we have little to no information on both of them except that she was bullied by him and that he won the tournament 51 times. That said, it doesn't necessarily reflect her power but perhaps rather her personality where as she didn't want to fight back for some reason that is not strength related. In addition, 51 is just a number, we don't know how many times he participated (I don't think we do). He was also no match for Luffy. On a side note, this has nothing to do with bounty, as neither Spartan nor Rebecca have one.

What I'm trying to get through here is that we can only speculate since we don't have enough variables to solve the equation. Both Rebecca and Spartan are said to be powerful. The difference between this tournament and its preceding ones, is that this tournament's prize's value far exceeds the ones before it which would definitely attract much more powerful participators.