Rowbury will break the AR this Friday. She is in great shape and since Ayana is in the field and wants to break the world record, the pace will be fast -- from the gun. This should be an exciting race to watch.
I don't see how knowing you are one of the best athletes in the world and watching another athlete 50 meters in front of you at the halfway point will benefit her. Hopefully there are several 14:3x types to compete against, but Ayana's fast pace won't help Shannon at all.