Sorry Shalane. Great effort, but very unrealistic. East Africans are genetically superior in the marathon. You might occasionally beat a few, or grab a medal. But in the marathon, you won't simply lead the whole way and run them off the course. Not...gonna....happen.
You are a smarter, more realistic girl today. Next time hang back, try to pick a few off, and grab a 3rd. You can't outrun superior genes, no matter how many western techno-tricks you try.