So, it sounds like Deena hopped on Verran's back and was piggy-backed the last couple of miles.
I'm sure she knew exactly what was going on behind her without Verran's help. Someone of her ability doesnt go to a race alone. She has a team with her that is constantly getting information to her. There's also some very knowledgable fans along the course who are prob listening to the race on the radio and are able to relay some good info to Deena. If all that didnt work, she could turn around herself and take a good look.
Bottom line is that there are factors that keep from allowing perfect conditions to occur in a road race (hills, weather, turns, other runners, spectators). To be a good road racer, a runner must utilize these imperfect conditions and be able to take full advantage of them.
By the way, do you want the prize money going to an American or to some third-worlder who couldnt find Chicago on a map?
Good Job, Deena!!!!