Mason competed in the Supersport class 2000 and 2001, earning his first podium finish (2nd) at the Brands Hatch Indy circuit in the penultimate round of the 2000 season, overall Mason finished 8th in the Championship, 2001 saw Mason continue in the Supersport class, he finished the season in 7th after a consistent season.
He currently races a BMW S1000RR in the British National Superstock 1000 Championship. Starting out Mason began racing in the 250 Aprilia challenge before moving up to the British Supersport class in 2000. British Supersport Championship 2000-01 British Superbike Championship 2002-06 Between 2002 and 2006 Mason competed in the British Superbike Championship, Mason struggled in his first season in the championship, retiring 12 times finishing 14th in the Championship.
In 2003, Mason's form improved on the previous season finishing 8th in the championship having his career high 4th place finish on 3 separate occasions. Mason then finish 11th, 8th and 17th in the next three years of the championship. AMA 2007-08 Mason then moved to the AMA series for 2 years, but did not really make much of an impact in the Supersport or Superstock classes.
Return to the British Superbike Championship 2008-2012 For 2010 Mason moved to the MSS Colchester Kawasaki team, Mason has had mixed results in the 2010 season with a best finish of 7th place in the first race at Oulton Park. For 2011 Mason stayed with the MSS Kawasaki squad, gaining his first ever full BSB podium in race one at Croft, a race which was full of incident with mixed weather conditions. Endurance Racing 2013 - 2015 Mason joined Prime Factors Racing in the Endurance World Championship Return to the British Superbike Championship 2016 Mason will return to BSB in 2016 with Prime Factors Racing & arc-on.
He is a former British Superbike Championship priveteers cup champion, Mason has previously raced in the British Supersport Championship and the AMA supersport and superstock classes. Mason returned to the British Superbike championship in 2008 racing for the Quay Garage Honda, competing in the priveteers cup finishing 3rd in that championship, Mason was retained at the Quay Garage team for the 2009 the season in which he won the priveteers cup.
