How long do skateboard sponsorships usually last?

How long do skateboard sponsorships usually last?

Tony Alva (Pro Skateboarder) gives expert video advice on: What kind of sponsorship deal should I try to get as a skateboarder?; What happens after I get sponsored?; How long do skateboard sponsorships usually last? and more...

As long as you are healthy and you are able to perform, because anything can happen in skateboarding. You could break your neck, you could break your leg, you could become paralyzed, and you could be like knocked out. So, skateboarding is rough and tumble thing and it is like basically anything can happen. Guys have been killed skateboarding, basically cerebral hemorrhage, run over by car, hit by a train, and just everything and anything you could ever think of has happen to guys who like skateboarding. Just flash flood in a drainage ditch, swept down the ditch and you are gone.