Kent Callister grabs 3rd at Grand Prix !! March 4th, 2015 | 0 Comments Tweet Kent (@cutsnake_callister) Callister earned himself a comfy spot on the podium at last week’s FIS Halfpipe Grand Prix, with a 88.5! Nice work Kent!! Click here for in-depth results of the Grand Prix Halfpipe finals! Categories: Lib Tech, Media, TRUST MERVIN MFG.