he lacks the alpha personality that mo has. mo will dominate if he is close to physically able, whereas rupp will concede the lead. However, Mo didn't give the marathon much of a chance and had quite a few physical problems that year. Rupp can surely run 2:05-6, but note that Hall debuted at 59:43 when he was only a 13:16 runner. That was a marathon talent even going back to those fast ten milers he ran in high school. Rupp has a lot of speed for a marathoner.