The world's best marathoner Brigid Kosgei is racing Chicago and that means Paula Radcliffe's 17-year-old course record of 2:17:18 is in jeopardy. Could Deena Kastor's American record also fall?

The women's race in Dubai this year race boasts two sub-2:20 women and a total of six who have run under 2:23 as well as super talented debutantes Gelete Burka (10k silver at 2015 Worlds) and 22-year old Senbere Teferi (5k silver at 2015 Worlds, 14:29 pb).

World 5000 silver medalist Senbere Teferi was a close 2nd (30:41.68) as former World 10,000 bronze medalist Belaynesh Oljira was 3rd (30:44.57).

The Olympic track and field action starts on Friday and the action will kick off in incredible fashion with a SPECTACULAR women's 10,000-meter final that will be run at 11:10 am ET. Can Tirunesh Dibaba become the 1st woman to win 3 individual golds in the same event? Or will Almaz Ayana mark herself as the new world #1? Can defending world champ Vivian Cheruiyot win her first Olympic gold? Can American Molly Infeld and or Molly Huddle medal? Will the American record go down?

Millrose is the jewel of the US indoor season for a reason.

Emily Infeld won the bronze but is she or Molly Huddle our world #3?

Without a doubt, 2015 was the greatest year ever in the women's 5,000 thanks to Almaz Ayana and Genzebe Dibaba, who ran 6 of the 10 fastest times in history.

Huddle had the bronze until the final step, when she slowed down to throw up her arms, allowing Infeld to sneak by on the inside. Ahead of them, Cheruiyot won her fourth global title with an impressive 60-second last lap as she kicked away from Ethiopia's Gelete Burka to win a slow race in 31:41.31. Overall, it was a fantastic race for the Americans (Shalane Flanagan was the other), as they went 3-4-6.

An American man has never medalled in the 10,000 at Worlds but Molly Huddle has a real shot at joining Kara Goucher and Shalane Flanagan as a global medallist. Vivian Cheruiyot is back from matenrity leave and seems like a near -lock for gold given Tirunesh Dibaba's absence.

Shalane Flanagan showed she's ready for Boston, Gabriele Grunewald got a nice pr and win in the 5000m, Sam Stabler of Lamar had the breakthrough of the meet in the 5000m, Oliver Aitchison showed he's becoming a force at 1500m,  German Fernandez got a much needed win and Erin Teschuk got some attention.

Dibaba just missed the WR and Lagat came up short in his AR attempt in 3rd.

Sambu ran 27:39 as Komon ran 28:17 getting his first loss over 10K on the road since February of 2011. Sambu also just missed the 8K WR along the way. Joyce Chepkirui won the women's race in 31:17.

This week we start by trying to put Galen Rupp's American record in perspective before handing out praise to the US men for their record-setting day in Houston, where Meb Keflezighi and  Serena Burla picked up big wins. Along the way, we give out big props to the Houston organizers, remind you to never trust a Canadian, never marry a distance runner and don't forget to drink 10 pints before your next marathon. Plus Mo Farah will soon find out all of the big talent is in the marathon and rare, rare praise for a Mexican marathoner.