When I was leading on Grand Valley Enduarnce, when I pitted and took off to the next check point, the time it said that I was ahead of the car behind me was still the same as before I pitted. It took atleast 1 and sometimes 2 checkpoints to recalculate my lead time. It was like the car behind me jumped 20+ secs on me.
BTW the car behind me did not pit.
BTW the car behind me did not pit.