UFC undisputed 3 Glitch?

i was playing through the career mode, i have tried and tried again to do this but was never able to before, but i was able to win three belts in three different weight classes, i had four total, one being in welter, light, back to welter and finally middle, does anyone know of this is a glitch or was i just lucky.

what!? i actually stopped playing because i couldn't get a title shot in another weight class with my created fighter. i kept beating the number 2 guy then i'd defend my belt and blah blah blah. you are lucky