Thomas has represented Great Britain at three Summer Paralympics and with his colleagues John Robertson and Hannah Stodel has won multiple medals in the Mixed Sonar class at the Disabled Sailing World Championships, including gold in 2005 and 2006.

[1] Thomas took to the physicality of the sport and was part of the Great Britain squad who attempted to qualify for the 2002 Winter Paralympics in Utah.

The British squad lost heavily to both Canada (9–0) and Norway (6–0), but beat the Italian team 2–1 to finish third meaning they could not contest for a medal.

Among the team were world record holding javelin thrower Nathan Stephens and gold medal sprinter Richard Whitehead.

[4] Between the 2002 and 2006 Winter Paralympics, a change encounter with the Performance Director for Welsh Disability Sport saw Thomas offered a role in the British sailing team.

[1] Thomas faced a steep learning curve but persisted as middleman in a Mixed Sonar team alongside fellow British sailors John Robertson and Hannah Stodel.