The sprint standings that pop up on the left side of the screen go away in as little 10 seconds for Sprinter’s Playground sprints. That’s so quick that the 30 Day PR listing does not have time to show. On one of the sprints it does show, but for just a second or two. It needs to stay around long enough to review.
As an aside, it would be fabulous if I could retrieve my 30 Day results from the iOS companion app after I’ve completed a ride.