That is a 3-1/2 diamond workout from the Coach shared folder.
I take it you are at 3 stars status or higher at the moment.
Normally a workout matching your difficulty level should be achievable at 100% but no doubt deadlifts/squats the day before is a contributing factor. 
Was it one of the top recommended workouts or something you selected on purpose for the challenge?
Was your form yellow, blue or green?