He won gold medals at the 2012 London and 2016 Rio Paralympics with partner Liesl Tesch in the two person SKUD 18.

[3][4] On 29 March 1997, an incident occurred at the Middle Harbour Yacht Club jetty in which he broke his neck, leaving him a quadraplegic.

Fitzgibbon, who claimed that he was pushed into the water, stated that it was their failure to include a handrail in the design of the jetty that caused him to fall off.

[8] After seeing Liesl Tesch in an SBS documentary about the boat Sailors with Disabilities competing in the 2009 Sydney to Hobart Yacht Race, Fitzgibbon contacted her in late 2010 and they formed a sailing partnership.

[9] At the 2014 IFDS World Championships in Halifax, Canada, Fitzgibbon teamed with Tesch to win the two-person SKUD 18 class.

"[14] Fitzgibbon and Tesch won the bronze medal in the SKUD 18 class at the 2016 World Championships held in Medemblik, Netherlands.

"[3] In November 2014, Fitzgibbon shared the Yachting Australia Sailor of the Year with a Disability award with Liesl Tesch, Colin Harrison, Jonathan Harris, Russell Boaden and Matthew Bugg.