 He was offered an umpiring contract by the VFL in 2000 and promptly moved to Victoria where he umpired in the VFL for four years before being offered an AFL umpiring contract.Chamberlain was selected to officiate in his first grand final on 25 September 2010, the drawn Grand Final between and .He formerly taught physical education at Victorian Public High School, Mordialloc College, where he was also a year-level co-ordinator.