[2] His race victories include the 1986 and 1994 Grand Nationals on West Tip and Miinnehoma respectively,[2] the 1988 Cheltenham Gold Cup on Charter Party and the Champion Hurdle on Kribensis.
In March 1994 Dunwoody received a 14 day ban for deliberately obstructing his title rival Adrian Maguire's horse.
On 18 January 2008, it was reported that Dunwoody and American explorer Doug Stoup had reached the South Pole following a 48-day trek raising money for charity.
[4] On 26 February 2017, Dunwoody embarked on a walk across Japan, covering a distance of 2,000 miles, to raise money for Sarcoma UK cancer charity.
[6] Dunwoody was appointed Member of the Order of the British Empire (MBE) in the 1993 Birthday Honours for services to horse racing.