field of vision

How many of you remember watching Jeremy McGrath dominate Supercross? One thing that struck me about Jeremy was that he seemed to always know what was happening everywhere on the track. I remember some people commenting that he seemed to have eyes in the back of his head. However, to me, it seemed like he had a super wide field of vision and very quick vision. He was aware of events (crashes, misplaced hay bails, etc.) well ahead of his position on the track.