Huddle was dominant as Houlihan and Conley took 2-3. Huddle and 4th placer Emily Infeld are only doing the 10K, so 5th placer D’Agostino gets a ticket to Rio.

Results, post-race video. More coming.

Molly Huddle, Emily Infeld and Marielle Hall are all coming back from the 10k and all three have a good shot to finish top-3 in the 5k. Huddle has said she's leaning against doubling in Rio, but Infeld and Hall haven't committed, so Nicole Tully, Abbey D'Agostino, Shelby Houlihan et. al could finish fourth (or even fifth or sixth) and still go to the Olympics.

Both Lyles (20.26) and Norman (20.21, ahead of Justin Gatlin) won their semifinals, just as they won their first-round heats on Thursday. Rollins won a loaded 100 hurdles despite running part of her race in Queen Harrison's lane; Kristi Castlin and World Indoor champ Nia Ali join her on Team USA.

Lyles and Norman won their heats easily and moved up to #2 and #3 on the US high school all-time all-conditions list with 20.03 and 20.04 and 20.06. McLaughlin ran 55.46 for the second fastest time of the day.

Coburn remains the queen of the steeple in the US but Courtney Frerichs (9:20.92) and Colleen Quigley (9:21.29) both came up big and PR'd in the most important race of their lives to punch their tickets to Rio.

Brenda Martinez is doubling back from the 800. Morgan Uceny is the defending Trials champ. Cory McGee made the World Indoors team. Which one will step up? And how will 4:07 HS junior Kate Murphy fare against the pros?

Ryan Hill is the defending champ but bombed in his only race outdoors. Galen Rupp looked shaky in the prelims. Ben True, Hassan Mead and Eric Jenkins all struggled in the 10k. Bernard Lagat is 41 years old. This race is full of question marks, which makes for a compelling final.

Only five guys -- Matthew Centrowitz, Kyle Merber, Ben Blankenship, Robby Andrews and Leo Manzano -- have the Olympic standard. Unless someone runs faster than 3:36.20 this week, three of those five will be your team to Rio.

A tangle of limbs on the final turn saw Brenda Martinez lose her momentum and Montaño fall to the track. Grace took advantage, riding the rail to victory in 1:59.10 as Ajee Wilson (1:59.51) and Chrishuna Williams (1:59.59) joined her on Team USA. Molly Ludlow missed out by an agonizing .04, taking 4th in her second consecutive Trials.

The women's 100 was also historic as it saw three women break 10.80 for the first time in history. Trayvon Bromell tied his PB in taking second in the 100 (9.84) as Marvin Bracy (9.98) edged out Mike Rodgers (10.00) for the third spot.

With 6 guys with qualifying times under 8:20 and 12 under 8:30, you'd better be on your game if you want to go Rio.

Barring an act of God, Coburn will be on the US team. The question is, who will be joining her on the plane to Rio?

The men's 800 continues to be totally unpredictable.

The Trials are here and the LRC crew is on the ground in Eugene. We give you the highlights from our conversations with Symmonds, Mackey, Vashti Cunningham, Keni Harrison and more.

Ajee Wilson, Alysia Montano and Brenda Martinez have all starred on the international stage before. Will they make it to Rio? Not necessarily, as 12 Americans this year have run between 1:59.72 and 2:00.82.

The 800 is full of lots of studly young talent in Boris Berian, Donavan Brazier and Clayton Murphy - average age 21. Will they arrive as Olympians or can the old studs like Duane Solomon and Nick Symmonds make one last stand?

Molly Huddle will be your winner. After that, a bunch of women will be battling it out for a spot in Rio.