Tom Allan began playing hockey at the age of five. He played in the CGS First Hockey team from when he entered Year 7 until he captained the team in Year 12. He represented Victoria each year in his age group up to and including Under 21. This success led him to be included in the Victorian Institute of Sport program for four years.
While playing Outdoor Hockey he was introduced to the new sport of Indoor Hockey and he was attracted by the pace, high skill level and tactics required. From 2004 to 2008 he presented Victoria in his new sport and in 2008 was selected in the Australian squad.
In 2009 Tom played for Australia in the Indoor Tri-Nations Tournament in England and Scotland and was the leading goal scorer for Australia. He stayed on in Scotland after this tournament gaining international experience in the prestigious Euro Hockey Indoor Club Championships.
In 2010 Tom was again selected in the Australian team and represented Australia against Russia, Czech Republic and Poland.