<Tr> <Td_colspan="2"> Half - pipe skiing at the World Skiing Invitational </Td> </Tr> <Tr> <Th> Highest governing body </Th> <Td> International Ski Federation </Td> </Tr> <Tr> <Th_colspan="2"> Presence </Th> </Tr> <Tr> <Th> Olympic </Th> <Td> 2014 </Td> </Tr>

When did snowboarding half pipe become an olympic sport