In the video below she acknoweldges as much and even discusses whether she's going "home devastated" (it's a LetsRun.com meme).
Grace said she got sick last year with something flu like which probably affected her today. But having said that she said she didn’t want to use that as a total excuse as she admitted the transition to Bowerman hasn’t been easy as the workout are harder and she’s running more mileage. “His workouts are taking a lot out of me. I’m totally not killing them yet. I look at Shelby and the girls who have been there two years and see how incredible they are… I want to give myself the time to be where they are now.”