Here is my guess. I think when the mains are over and before pics start the guys takes their cars apart clean them up real good then get the pics taken. But they do not want to hassle with cleaning the tires or mounting a new set for the pics.
Also another theory is that maybe driver X has to run a Panther tire to be fast and is sponsored by Proline. So therefore he writes down that he used one tire and actually used another and therefore cannot have the actual tire used in the pics.