Pine competed for Australia in the 2000, and 2004 and 2008 Summer Olympics. In 2000, he swam in the heats for the gold (4×100-metre freestyle relay) and silver (4×100-metre medley relay) medal winning relay teams. In 2004, he swam in the 100-metre butterfly and was a member of the Australian 4×100-metre medley relay team, however this relay team failed to reach the finals.[2]
Pine recited the Athletes Oath at the 2006 Commonwealth Games, this was an appropriate gesture as he has won medals for Australia in the three Commonwealth Games leading up to the Melbourne games.
At the age of 31 he qualified for the 2008 Summer Olympics in the 100-metre butterfly (52.13). At the 2009 Rome World Championship trials (Australian Long Course swimming trials) Pine swam in the finals finishing 2nd in the 100-metre butterfly. This swim was under the A qualifying time for the world championships and earned himself a spot on the Australian World Championship Team.[3]
After retirement from competition, Adam became General Manager of Community Sports at Swimming Australia.[4] Following that position, Pine is became the administrative head of the Paralympic Swimming Program for Swimming Australia he has held this position since 2013.