He was the winner of the inaugural 2003 individual World Quizzing Championships,[3] when it was a fledgling event with then only 45 participants (now in the thousands) but won a second title in 2015.

He is also part of the Broken Hearts (with Ian Bayley, formerly David Stainer, replaced by Didier Bruyere and Mark Grant) quiz team which play in the QLL and have been European Club champions from 2007 to 2009.

Bjortomt's success on TV has been rather moderate compared with that of his teammates in the national team, and he describes himself as a "choker" (see Q&A link).

In 2007, Bjortomt competed in The National Lottery People's Quiz and was the first contestant to qualify for the grand final, answering 97 per cent of his questions correctly during the show.

On 10 October 2008 he appeared on Mastermind, scoring eight points on questions about West Indies Test cricket, and fourteen in the General Knowledge section, to finish in second place.