I'm not sure why there is so much question about why Centro won the 1500. It's very simple. Centro and Willis were the only ones in the field that ran their own races. Everyone else was just trying to match the moves of Kiprop. They let Centro get away because they were all focused on Kiprop who ran like a cocky idiot. Then Mac was the only one with enough speed to make up ground when they realized what was happening at the end.