Geiger was Melissa Perrine's guide and coach at the 2018 Winter Paralympics where she won two bronze medals.

The vehicle he was travelling in as a passenger slammed into a tree just 30 metres (98 ft) from his family's home in Bright, Victoria.

"[4] In 2013, Australian Paralympic Alpine Head Coach Steve Graham asked Geiger to replace Eric Bickerton as Jessica Gallagher's sighted guide.

[5]Geiger was guide to Gallagher at the 2014 Winter Paralympics in Sochi,[7] where they won a bronze medal in the women's giant slalom visually impaired event.

[1] 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.

[11] At the 2019 Australian Ski and Snowboard Awards, Geiger with Ryan Pearl was named Coach of the Year (Paralympic disciplines).