What is a Personal Record (PR)? September 16, 2019 21:36 Updated A PR is your best time at a given distance, i.e. your fastest 5K ever is 26 minutes 43 seconds. Related articles I was asked to update my plan based upon my PR, should I? How do I allow Run with Hal to access my location? Why are my prescribed paces too hard or too easy? How can I see an overview or calendar view of my entire training plan? What’s the difference between Run with Hal and Run with Hal+?