It's all about upside....this kid is coming out faster than anyone (well almost anyone in the 100m so far lol) in collegiate history in 2 events....and has improved yearly. He is the most valuable because he is American, arguably the best college sprinter ever and barely 22. Asafa et al don't get that as "base" coming out because shoe companies value american athletes more (they have more visibility) and because at 22 they weren't running what this guy is running. No one was. He ran 19.69 at 21 for chrissakes!
Bianca's deal is 200, 250 300 350 400 450 - six years up 50k every year....