I don't know why people assume Lagat could still pull something so fast. His last 1600m was a 3:55 which corresponds to a 3:40 1500m. He only ran 3:34 last year. If he can run a 3:32 it would only happen off of pure 1500m training not his current regiment. I know a lot of people say because he beat Rupp who ran that 3:50 indoor mile then he should be able to close faster than him in a straight 1500m. However, I wouldn't be surprised if Rupp was basically only training for the 1500/3000m and couldn't actually run something that fast at the moment, kind of how like Geb ran 3:31 indoors but slower outdoors. That being said, Lagat was near the leaders at the first lap which was far too fast for him in 53.6 or so and that probably burned him out. This makes sense because Manzano and Lalang held back early and then caught back up with the leaders by the end.