The 5'4 French Canadian consistently proved his halfpipe and big air skills with prestigious victories at the U.S. Open, Nippon Open and Toyota Big Air. For WX '04, Guillaume crosses over into the slopestyle arena with technical and fluid moves that put him in the number one podium spot at the Vans Triple Crown in December 2003. Morisset rides the pipe with huge, fluid moves. He is a small rider, but his power and amplitude camouflage his stature. Guillaume won the 2000 U.S. Open and has maintained a presence at the top of virtually every SuperPipe contest he enters.

Giom spends most of his time now serving as a judge at the X games and the Winter Dew Tour.