He has amassed over $700,000 in tournament winnings and was known for his aggressive playing style which is referred to by poker commentators as Jac Attack.
[1] His first major tournament victory was at the Master Classics of Poker 2000 event in Amsterdam, where he earned the $63,471 first prize.
[3] He eventually won a Late Night Poker tournament on his third attempt, defeating Gary Jones in the heads-up confrontation.
He went on to finish fourth at the season 5 Grand Final, behind Padraig Parkinson, Korosh Nejad and Beevers.
[4] In 2003 he beat a final table including Surinder Sunar to earn a £74,200 first prize in the £1,000 British Open event.