everybody stops, like hitting the brakes. when you show them a video of you doing that, they're amazed. chris: the sport is expensive. poles can cost up to $1,000. d.c. vault has a rental program. louthie has shorter vaults a for those age six and up. >> we have young kids that are spec tack a later. we have a decade to work with them before they get out of high school. chris: 6-year-olds pole vaulting? >> we have good one, actually. chris: so some have been standouts. like olivia who was in the olympic trials. but that's not the real prize. >> keep your leg engaged. >> i would love to see somebody develop like that, yeah. but i just want to see each individual develop to the maximum of their potential at their level, whatever that is. chris: louthie says he thinks a couple kids you saw in our story