I was able to shoot at Road America, Elkhart Lake, WI for SuperBike Weekend and Mr. Nash escaped injuries from this in Turn 5 so he could ride in the next race.
Thanks for the input, here are a 5 of the 18 shots cropped tighter.
I was told by his father that they are above 150mph before Turn 5 and he was doing between 50 - 60mph when struck from behind. The full 18 shot spray shows the bike doing over a 360 before sliding to a stop.