"I can't believe it, to be the winner here in two events," said David.
"I've been working on my work around the bends although I didn't get as good a start as I wanted."
We wish David every success when he takes part in the European Open Paralympic Championships, which begin next week in Espoo, Finland.
"I'll be racing the same guys again at the European Championships which will be tough as the track is slower but the support I had at Helsinki was fantastic," he added.
