Reply To: Race Pace Charts Home › Forums › General USRPT Topics › Race Pace Charts › Reply To: Race Pace Charts May 29, 2014 at 2:30 pm #1639 YnotSwimParticipant Thanks for the charts. Question, mathematically, these are simply 1/2, 1/4, etc of a total time. Where does fatigue and technique breakdown come into play in USRPT?