<Tr> <Td> 2018 Pyeongchang details </Td> <Td> Sébastien Toutant Canada </Td> <Td> Kyle Mack United States </Td> <Td> Billy Morgan Great Britain </Td> </Tr> <Table> <Tr> <Th> Games </Th> <Th_colspan="1"> Gold </Th> <Th_colspan="1"> Silver </Th> <Th_colspan="1"> Bronze </Th> </Tr> <Tr> <Td> 1998 Nagano details </Td> <Td> Gian Simmen Switzerland </Td> <Td> Daniel Franck Norway </Td> <Td> Ross Powers United States </Td> </Tr> <Tr> <Td> 2002 Salt Lake City details </Td> <Td> Ross Powers United States </Td> <Td> Danny Kass United States </Td> <Td> Jarret Thomas United States </Td> </Tr> <Tr> <Td> 2006 Turin details </Td> <Td> Shaun White United States </Td> <Td> Danny Kass United States </Td> <Td> Markku Koski Finland </Td> </Tr> <Tr> <Td> 2010 Vancouver details </Td> <Td> Shaun White United States </Td> <Td> Peetu Piiroinen Finland </Td> <Td> Scott Lago United States </Td> </Tr> <Tr> <Td> 2014 Sochi details </Td> <Td> Iouri Podladtchikov Switzerland </Td> <Td> Ayumu Hirano Japan </Td> <Td> Taku Hiraoka Japan </Td> </Tr> <Tr> <Td> 2018 Pyeongchang details </Td> <Td> Shaun White United States </Td> <Td> Ayumu Hirano Japan </Td> <Td> Scott James Australia </Td> </Tr> </Table> <Tr> <Th> Games </Th> <Th_colspan="1"> Gold </Th> <Th_colspan="1"> Silver </Th> <Th_colspan="1"> Bronze </Th> </Tr> <Tr> <Td> 1998 Nagano details </Td> <Td> Gian Simmen Switzerland </Td> <Td> Daniel Franck Norway </Td> <Td> Ross Powers United States </Td> </Tr>

Who won the gold medal in the half pipe