If Nick Willis’ experience this season is any indication, life on the bubble of IAAF World Championships qualification can be a maddening whirlwind.

By Parker Navarro - MileSplit

Reigning 10,000m world champion Mo Farah will not defend his title at the 2019 IAAF World Championships in Doha, Qatar, according to his agent Ricky Simms. Farah was not listed among the IAAF's provisional entries released on Thursday.

The entries are out for next week's IAAF World Championships in Doha, Qatar. Here are six takeaways. 

After all the previews, prognostications, and polls, the NCAA cross country season begins in earnest on Saturday at the John McNichols Invitational. The race puts a bunch of top-10 teams together in Terre Haute — a course they will see again in November for the NCAA Championships. 

Searching for that perfect post-long-run-and-chill content? 

There is just over one week until the start of the 2019 IAAF World Championships in Doha, Qatar. While the U.S. medal count will likely be higher in the sprints than in the distance, the Americans can expect to tally plenty of hardware in the longer races as well. 

Sometime around 2:10 AM on September 28, I will be standing on a Middle Eastern waterfront watching a marathon finish.  

Based on the announced relay pools, here's who we think Team USA should line up in Doha for the relay prelims and finals. 2019 season's best listed in parentheses.

The 2019 IAAF World Championships in Doha, Qatar, are 11 days away. We’ve weathered the longest track season ever and now all eyes turn to the Qatari capital as the first-ever Middle Eastern host of a track and field global championship. From the air-conditioned track and pink surface to the midnight marathon, there will be plenty that makes this year’s marquee event completely different from anything that’s ever come before it.