pretty much. that is what people don't understand. when you start getting to 5000, 3000m, 1500m, 800m
You need to finish with speed, so getting out fast is good if you can close. But not good, because you will come back to the kickers in the end.
When Dibaba beat Ayana in 2015, Dibaba was at the top of her game, Dibaba was behind Ayana speed for speed. Ayana tried to break away so many times, and when it got to 400m - it was over. Obiri just did the same thing.
No runner can run world record pace without tiring and either coming back to the field, or someone running with her and out kicking her in the end
They were both running serious world record pace, obiri was right there with no signs of slowing down.
There was simply nothing ayana can do. I like her, but she is just a one tactic runner.
Think about this, Tirunesh broke the world record at 5000m by having an insane last lap, not by going out at WR pace and turning the screw.