From Jordan Hasay (50%) to Stephanie Bruce (5%), we break down the odds for the  contenders at the 2020 US Olympic Trials.

For the first time in 33 years, the defending Boston marathon women's champion is an American, Des Linden. That the good news. For the bad news, read the article.

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 Boston field is out and we help make sense of it all.

Birir is the 1992 Olympic steeplechase champ ahead of favorite Patrick Sang (now Kipchoge's coach).

Can anyone stop the great Mary Keitany - a woman who has lost a grand total of 7 races over the last 8 years?

Asked about her rivalry with Shannon Rowbury, Simpson talks about how having to go up against Sally Kipyego in college made her a lot better.

The fields are strong once again for Sunday's late-night meet. Maggie Vessey (800), Cory McGee (1,500), Shelby Houlihan (1,500), Evan Jager (1,500) Henrik Ingebrigtsen (1,500), Sally Kipyego (5k), Nicole Tully (5k), Garrett Heath (5k), Chris Derrick (5k), Buze Diriba (10k), Molly Seidel (10k) and Sam Chelanga (10k) are among the entrants with the 10k track debut of Bernard Lagat.

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Kipyego also talked about how she is disappointed with the Kenyan government for not meeting the WADA deadline and feels that they let the athletes down.

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

Keitany has been running great since returning from her second pregnancy last year, but she'll have her hands full on Sunday. Aselefech Mergia (Dubai), Caroline Rotich (Boston) and Tigist Tufa (London) have all won major marathons this year, plus the field includes 2013 champ Priscah Jeptoo, two-time runner-up Buzunesh Deba and debutante Sally Kipyego. *MB: 2015 NYC Marathon Women's Race - Who you got in loaded womens' field led by Mary Ketiany?

He and Mary Keitany will try to defend their titles, while OTC's Sally Kipyego will make her marathon debut. She has been training in Kenya since June and hopes to make the Kenyan marathon squad for Rio.

The defending champ is back to take on a field that features three sub-2:20 women and 10 sub-2:25 women, double the 5 sub-2:25 women in Chicago.