Jelle Klaasen (born 17 October 1984), nicknamed The Cobra, is a Dutch professional darts player who plays in the Professional Darts Corporation (PDC) and World Darts Federation (WDF) events. In 2006, he became the youngest darts player to win the World Darts Championship, aged 21 at the time. He also is a Dutch Open champion. Since November 2022, he has been the leader of the World Darts Federation men's ranking. Beginnings of his career His first attempt at the international stage was a 2005 Winmau World Masters ended with a 2–3 defeat to Irishman Steve McDonald. On 15 January 2006, Klaasen became the youngest World Darts Champion, aged 21 years 90 days, when he defeated fellow Dutchman Raymond van Barneveld in the final of the 2006 BDO World Championship by 7 sets to 5. He also beat Shaun Greatbatch and world number one Mervyn King on his way to the final. Before the championship, he was said to be a 100–1 outsider to win the title as he did not even have a BDO Ranking. As World Champion, he was invited to the 2006 World Darts Trophy in his home country, but lost 0–3 to Tony Eccles in the first round. In 2007, he won in the first round 3–1 against reigning PDC World Champion Raymond van Barneveld, shortly after that he lost in the second round to Andy Hamilton. He also played in the 2006 International Darts League and beat 13-times World Champion Phil Taylor 7–6 in his last group match, but it was not enough to qualify for the knockout stages. He beat Andy Fordham and Dick van Dijk but lost to Martin Adams, Shaun Greatbatch and Colin Lloyd in his other group matches. Klaasen has won some Open events in his native country including the Alkmaar Open. In March 2006 he was runner-up in the Finnish Open, losing in the final to Martin Atkins by 2–6. He also reached the quarter-finals of the Swiss Open and Denmark Open during 2006. In 2006 Winmau World Masters, he was seeded 13 but suffered a straight sets defeat in his first match against fellow Dutchman Mario Robbe. Klaasen returned to the Lakeside to defend his World title at the 2007 Championship. Klaasen was unseeded for the event after a poor run of form and was facing the seeded Co Stompé, with eventual winner Martin Adams waiting in round two should