Conditions vary widely. At one showcase my son did much worse than expected at the 60. We both suspected the distance was off. I started to look at the other players who ran, and many of them had other showcase times posted. Every single player that I could find, over 20, ran slower at that showcase than what was timed elsewhere. Fast forward about 5 months, the same organization had another showcase. Son posted his personal best at this one. I did the same analysis...virtually every kid there posted a personal best that day.