There is no one who is truly dominant, but if Kiprop is having a good day, he is number one. There are '5-6 other athletes' who are medal contenders, which includes Centro and Manzano. However, the fact that Centro is running with great confidence and his recent 800 PR makes me put him near the bottom of that '5-6 other athletes'. Being realistic, Centro winning Worlds is not impossible, but not likely; I would say at best, he about a 50% chance of medaling. With that said, on any given Sunday, any 3:32 capable athlete, who puts themselves in position and can close well has a shot...this even includes athletes we aren't even thinking about.