Edwards talks about how she visited Boulder and stayed in Coburn and Joe Bosshard's house when she hadn't even met them before.
Asked which track athletes she enjoys watching compete she mentions Emma Coburn who she says is the "sweetest".
Some great matchups include a re-run of the women's Olympic 800 final, Laura Muir vs Faith Kipyegon in the 1500, Ruth Jebet vs Hyvin Kiyeng and Emma Coburn in the steeple and a deep men's 5K.
A not surprising stat os all the distance medalists except Clayton Muprphy and 17 of the distance finalists live or train at altitude.
Fields will include Matt Centrowitz, Robby Andrews, Ben Blankenship, Emma Coburn and Kate Grace.
Mark Wetmore they both have "very strong egos" so "have room in their self-esteem for other people to be successful."
The women "did not appear to be affected" though Coburn called it "frustrating".
Monaco tops his list, one spot ahead of Worlds.
Simpson says her best friend in track is Emma Coburn and her greatest rival was Anna Willard when they both ran the steeplechase.
She opened at 9:19 last year and didn't want to travel to a DL event as her brother's wedding was last weekend.
Simpson's 3:57.22 PR from last year is just .10 off Mary Slaney’s 31-year-old US record. They'll be joined by Treniere Moser and Emma Coburn against international stars Siffan Hassan and Maryam Yusuf Jamal.
Coburn shares her top achievement and disappointment, favorite venue and greatest indulgence.
Coburn, who doesn't have an agent, didn't know she needed to be drug tested.