Nope they just hitch their leathers up a bit higher and race.
Names like Rainey, Gardner, Doohan, Schwantz. The greats doing great things on a motorcycle. Towards the end of the race watch how fast these guys pass the backmarkers. imagine feeling fast enough on a bike to even consider racing one of these monsters and then being passed by these guys at the speeds they do. Your ego would be crushed forever. Or, these front runners were not mortal, perhaps they were racing deities. Either way, this is an education on what fast looks like on a motorcycle. And no rain delays ;)