No times are considered official in the unimotorcycling community until they are accomplished on an A.N.U.S. sanctioned track. Currently, the gatherings in California are unofficial and considered 'exhibitions' only.
'Exhibition' makes it sound a whole lot more official than it was. I'm not even sure the guy at the finish line watched every run. The 'winner' of the event seems to be decided general consensus based on who everyone remembers winning the most runs - and the drunker among us seem to be the most vocal when decisions are being made.