Career
Watt started his British speedway career in 2001 when he signed for the Isle of Wight Islanders in the Premier League. The following year he signed for Premier League team Newcastle Diamonds. Watt rode for Rye House Rockets in the Premier League in 2004 and also doubled-up with Poole, but after he suffered an injury early on in the season he was replaced by Krzysztof Kasprzak.
After Watt had recovered from his injury he moved on loan to the Eastbourne Eagles in the Elite League, where he remained until 2006 when he moved to Oxford Cheetahs for a year.
He returned to Eastbourne in 2007 and added 2 points to his average by the end of the season he was voted Eastbourne"s Rider of the Year. Watt looked set to stay with Eastbourne in 2008 but after a change of management at the club he was left without a team place.
Watt had ridden for Masarna Avesta in the Swedish Elitserien since 2006, but joined Lejonen in 2009 after Masarna were declared bankrupt and dropped out of the league. Watt was made the captain of Stal Rzeszów for the 2008 season but the team were relegated.
In 2009, Watt has signed for WTS Wrocław in the Ekstraliga.
Speedway World Cup
2007 - Leszno, Alfred Smoczyk Stadium - 3rd - 29pts
2008 - Vojens, Vojens Speedway Center - 4th - 21pts (3)
2009 - Leszno, Alfred Smoczyk Stadium - 2nd - 43pts (5)
2011 - Gorzów Wielkopolski, Edward Jancarz Stadium - 2nd - 45pts (3)
2012 - Målilla, G&B Stadium - 2nd - 39pts (16).