Geiger was born on 29 March 1988 in St Leonards, New South Wales, Australia, but lived in Austria until he was eight. On 26 September 2009, he was involved in a car crash. The vehicle he was travelling in as a passenger slammed into a tree just from his family's home in Bright, Victoria. He suffered severe injuries to his arm, spleen and liver as well as serious brain trauma. As a result, he was in an induced coma for a week. It took months before he could walk, talk and eat independently again. As of August 2011, he had ten operations, extensive physiotherapy and speech therapy.
Skiing
Geiger began skiing at the age of two in Austria, and made the national team in 2006. He won numerous Australian Championships during his teenage years, and represented Australia at the 2008 World Junior Alpine Skiing Championships and the 2009 FIS Alpine World Ski Championships. This changed after his 2009 accident. "I tried to get back to able bodied but couldn't quite get back to where I was, let alone where I wanted to go," he later explained, "so I had to hang it up." In 2013, Australian Paralympic Alpine Head Coach Steve Graham asked Geiger to replace Eric Bickerton as Jessica Gallagher's sighted guide. In their first competition, the 2013 IPC Alpine Skiing World Cup in Thredbo, New South Wales, he guided Gallagher to silver medals in women's slalom and giant slalom. Gallagher gave an insight on taking on Geiger as a guide. She said: Geiger was guide to Gallagher at the 2014 Winter Paralympics in Sochi, where they won a bronze medal in the women's giant slalom visually impaired event. They came seventh in the women's slalom visually impaired. In 2015, he was Head Coach of Australia’s Para-Alpine Skiing program. Following Gallagher's move to para-cycling, Geiger became sighted guide to Melissa Perrine. At the 2018 Winter Paralympics in Pyeongchang, Geiger guided Perrine to bronze medal wins in the women's super combined and giant slalom visually impaired events. The pair also placed fourth in the slalom and fifth in the downhill and super-G visually impaired. In November 2018, Geiger won the New South Wales Institute of Sport 7News Spirit of Sport Award, as voted by the public, for his act of generosity in flying Perrine’s family to PyeongChang, allowing them to watch her compete at the Winter Paralympics. At the 2019 Australian Ski and Snowboard Awards, Geiger with Ryan Pearl was named Coach of the Year.
