We recap the week in running for you and wonder why 2022 Boston is also planning to have a reduced size.

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.

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.

An American-born man hasn't won the Boston Marathon since 1983. Galen Rupp enters Monday's race in the form of his life, but will that be enough as the men's field is a lot more difficult to win this year than last?

The Olympic bronze medallist at 10,000 is back to defend his crown but he'll face five other sub-2:07 guys in the field plus four really interesting debutantes: Yenew Alamirew (12:48/27:19 track pbs),  Birhanu Legese (59:20 to win New Delhi Half Marathon in November), Leul Gebresilase (59:18 HM), and Fikadu Haftu (59:22).

This year's race features a new altered faster course.

Sometimes the marathon field at worlds is watered down but certianly not this year as the Duba, London and Boston champs are all racing.

9 days before Alberto Salazar won Boston, he set a 10,000 pb on the track. So we fully expect Rupp to set a half marathon pb tomorrow – will he get the AR as well? *MB: Prague 1/2 predictions? Rupp ftw? – Official 2017 Prague Half Live Discussion Thread *MB: Jordan Hasay is running 100 miles a week just 2-3 weeks out from Boston

The women's race is especial deep as it's lead by world record holder Peres Jepchirchir and has six other women who have gone under 1:09. Rupp will face Rio 10,000 bronze medalist Tamirat Tola and four sub-1 hour Kenyans.

We break down the field in Dubai and take a look at the men who could challenge Kenenisa Bekele, including 2014 champ Tsegaye Mekonnen, 2:04 man Dino Sefir, Olympic 10k bronze medallist Tamirat Tola and half marathon stud Birhanu Legese.

Day 1 of the Pre Classic got underway with some mom power in the women's 800 and women's 5000m, and two no-names trying to take it to Mo Farah in the 10,000m.

The world's greatest foot race is Saturday in China (Friday night in the USA) and it should be Kenya vs. Ethiopia for gold with USA battling for bronze on the men's side. Can Eritrea's Teklemariam Medhin, the guy who had a malaria-like disease and slept in the airport two years ago but still got bronze, come out on top?

Our weekly update of the comings and goings in the running world.