The pros weighed in on bouncing back from Worlds, chasing the course record (or not), and (of course) the Nike Vaporflys.

NYC's elite men's field isn't deep at all, but with Geoffrey Kamworor coming in off a half marathon WR, Lelisa Desisa chasing an unprecedented Worlds/NYC double, and Jared Ward entering in terrific shape, the men's race should still be a good one.

Kitata won a 3-way sprint in the men's race while Kosgei showed she's a real threat to win the greatest women's marathon in history in London by running the fastest time ever in the Western Hemisphere while Sisson stamped herself as a 2020 Olympic marathon contender.

Houston is always one of the highlights of the winter for US fans and this year's races could be extra special as Olympic silver medallist Sally Kipyego races for the 1st time since declaring she'll represent the US moving forward and Kara Goucher races a marathon for the 1st time as a 40-year old. The problem is the weather forecast doesn't look good but what does look good is the international fields in both the men's and women's halves as they are loaded with talent.

The unparalleled Eliud Kipchoge tops the marathon rankings yet again.

Only twice in the history of New York has an Ethiopan man won in New York, that's likely to change on Sunday unless Kenya's Geoffrey Kamworor can defend his title.

A 4:22 opening mile and 13:48 first 5k were way too fast, but they couldn't stop Eliud Kipchoge from winning London.

We introduce you a German teen sensation and try to figure out if she's most like Cain, Efraimson, Hasay and Ostrander, prove to you that it's a real bad idea to just go for it in a race, talk about the end of NY Diamond League, and do something we almost never do - praise a doper.