Charles Philibert-Thiboutot (13:35) set a Canadian road 5k record to win the men's 5k while Annie Rodenfels took the women's mile.

Over the weekend, Cruz Culpepper joined his dad as a sub-4 miler. We've updated the rankings of US father-son sub-4 combos as a result.

Coburn will race the WR holder Chepkoech for the first times since Coburn wondered if Chepkoech was clean last year.

If you thought Kejelcha's world record was all that happened last week think again.

The mile in Boston was pure insanity. Kejelcha finally got the WR after three tries (but missed the 1500 en-route) as Gregorek ran 3:49 and Sam Prakel ran 3:50.

While no spots for Worlds are on the line his year, there are still some very interesting races at USA Indoors this year, particularly if the stars decide to go for a fast time. Can Donavan Brazier (600), Ajee Wilson (1k) and Craig Engels break American or even World records this weekend?

The 4 x mile world record and high school 3000 record could both fall Saturday in NYC.

Wilson is in the 600m while Craig Engels is in the 1000m with Johnny Gregorek and Sam Prakel. Natoya Goule vs Laura Roesler in the women's 1000m and Tuohy takes on the pros including Heather Kampf in the 3000.

Gregorek ran the fastest 1500 of the night at Oxy, clocking 3:36.95, and says he's now ready for his first Bowerman Mile appearance.

For years, we've said when you watch meets like Oxy you are basically watching practice. This year's meet proves it as Olympic champ Matthew Centrowitz is in the C heat of the 1500 (doubling back from the 800).

Sunday's 1500 final is set and the Kenyan stars and Johnny Gregorek will be in it, but not Robby Andrews.

The last individual final of the 2017 IAAF Worlds is likely to be worth the wait. The Olympic champ Matthew Centrowitz hasn't looked great this year, nor has the reigning 3-time World champ Asbel Kiprop. If they don't win, who will?

Jager is looking for his sixth straight US title while Centro looks for his third straight while Clayton Murphy is hoping to qualify in both the 800 and 1500. *MB: 2017 USAs: Who wins at 800: Brazier or Murphy ? Can Murphy pull of the 8/15 double? Is Jager vulnerable in steeple?

If you like upsets, read this as we are predicting a guy who didn't even make the Olympic Trials to win the men's mile at USAs.

Asbel Kiprop may have run the world's fastest time by over a second (3:29.33) and won four Diamond League races, but for the first time since 1971, an American man is the #1 ranked miler in the world as we can't pick against a near-perfect season from Centro that included victories at World Indoors and the Olympics and a world-leading time in the mile (3:50.63).