Pavey started his racing career in Sydney in 1981 with a motorcross race in Appin and won his first race at the same circuit that year. He has since competed in numerous rally events worldwide including the Dakar Rally ten times, completing it seven times (including his first attempt in 1998). He gained recognition when he first trained Ewan McGregor and Charley Boorman in off-road motorcycle riding for the TV series Long Way Round and then trained Boorman again to race off-road and compete in the Dakar Rally in 2006 for the TV series Race to Dakar. During the event Boorman retired due to injury and Pavey went on to complete the race finishing in 86th position, his worst performance., and has high as 50th position in 1990. In 2015, Pavey and his son Llewelyn formed the first father-son team to not only attempt Dakar, but also to finish.
Pavey competed in the Transorientale Rally in 2008. The rally started in St Petersburg on 12 June and finished in Beijing on 28 June 2008. He placed 18th in the moto/quad division, with a final time of 53 hours, 51 minutes.
- 1988 New South Wales Hare Scramble Champion
- 1989 Number one enduro rider in Japan
- 1997 Finished First African Rally - Atlas Rally
- 1998 Finished First Dakar Rally
- 2004 Winner of the Great Britain Hare Scrambles Veteran Class
- 2008 Transorientale - 18th 
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- http://www.dakar.com/dakar/2015/us/rider/076.html Official Race to Dakar Rider Profiles
- "Archived copy". Archived from the original on 16 March 2015. Retrieved 2 May 2007. Race to Dakar - Race Diary
- "Archived copy". Archived from the original on 7 January 2011. Retrieved 2 January 2011.
- "Archived copy". Archived from the original on 22 April 2007. Retrieved 6 February 2008. TMX News, Simon Pave's road to China
- http://www.transorientale.com/news/classements.php?edition=2008&id_etape=38&search=overall Transorientale 2008 Moto/Quad Official Results
- http://www.offroadskills.com/ Offroad Skills home page
- "Archived copy". Archived from the original on 18 August 2008. Retrieved 18 August 2008. Touratech UK July 2008 news web page