NSWIS park and pipe athlete Kent Callister has finished the World Cup season with a 20th place performance in the US Grand Prix event in Mammoth Mountain, California, USA.
Callister finished his heat in ninth position, just missing out by one place on the top eight required to progress to the final.
Having competed in four of the five events on the FIS Snowboard Halfpipe World Cup tour, Callister has finished the season ranked 13th on the standings.
NSWIS teammate Emily Arthur unfortunately was unable to compete in Mammoth due to a shoulder injury.
IMAGE - The Mammoth Mountain Halfpipe