Cam Levins (fans) goes home devastated!!

From 10k to 20k they ran 2:02 pace. Cam isn't a 2:02 marathoner. He got dropped and probably wasn't ready for that. Running along in NY early wasn't probably expected. That's my analysis.

Explain to us how it all works?

Heat is not an issue for Levins. He's basically heat training daily. The way he describes it he's running triples, which includes a minimum of one to two 60-90min sessions in a blazing hot altitude tent where he's just grinding miles while dripping.

How does what runner A does affect runner B? It doesn't. Thats my analysis.

he would only see success if he did the full Norwegian system......maybe next time:)

Wejo may have oversimplified, but he's probably on the right track here. It was partly a 'crummy' day and partly running too fast. Cam's PR is probably worth closer to a 2:08 flat in NYC. From 5k to 15k he ran 2:05 flat pace and then started to get dropped. Tola is a beast when on and even the Olympic and WC medalist in the field faded to 2:10 off of that acceleration from 5k to the half in 1:02:45. I love that Cam's out there swinging for the fences but when you get on the wrong side of the appropriate pace it's going to make your day even 'crummier'.

It might be a cop out to say bad days happen but it's really the only answer that is really definitive unless there's some obvious thing, (a cold, blisters, dog attack,etc.) explaining it. Answering "why" questions is frequently speculative.