^^^ Also Rupp ran New York and dropped out. So this wouldn't be the first marathon he ran in since worlds. But might be the first one he completes since worlds.
Americans ran some fast times in Chicago last year...for Americans that is. Perhaps he just wants to get a good time. I'm guessing your comment about taking down top Africans is just a joke. Those days are gone for him.
Not a joke. He could theoretically run a 2:05, not inconceivable. And the top Africans could all have a bad day and run 2:06 or worse. Most do as individuals, just usually not all in the same race. Certainly he could get top 5 in Berlin. He went to Europe for his current PB.
No other American can. None is even close to Rupp's level. Where is the challenge in competing against Americans? He should be on the world stage.