Glenn Turner got into hockey when he was five as a result of a bet between his father and his neighbours in Bowral. Turner's father played rugby league but the neighbours played hockey. The families made a bet that whoever's team finished higher that year, the two sons- both the same age- would play that sport. Hockey won out and Turner made his Kookaburras debut in 2009. The striker was a part of the all-conquering 2010 Australian Team that won the World Cup, Champions Trophy and Commonwealth Games gold medal.
Turner was one of 11 men’s hockey players on debut at the London Olympics in 2012. Turner kicked off the tournament with a goal in Australia’s resounding 6-0 victory over South Africa. The world No1 Kookaburras beat Spain and Pakistan but drew with Argentina and Great Britain in the pool stage, setting up a semi-final showdown with defending Olympic Champions, Germany. Despite Australia leading for most of the match and being a goal up with 16 minutes to go, Germany lifted another gear in the final stages of the game, scoring three late goals to run out 4-2 winners and cruelly deny the Kookaburras a chance to play for gold. Turner finished the tournament with four goals.