Wilder would have lost that way if Ortiz wasn't pushing 40(or older than that if the rumours are true), there is no way a guy with the legs of a giraffe can have an iron chin in the heavyweight division. Historically all of the iron chinned guys have had stout legs and generally compact builds. Vitali is an exception on the compact build but he too had strong legs. As for Saturday I could see a few scenarios playing out. Wilder could bum rush Fury and ko him early, or Fury could get out of the way of the wild shots and make Wilder pay and gradually weaken him and we see the Ortiz round but Fury finishes Wilder off. The fight is close to a 50-50 fight because of Fury's personal life issues.