In 2008, Arcelor participated in the U 15 invitational tournament of eight European countries and won the men's singles and men's doubles championships. In 2009, Arcelor won the men's singles championship in the European U 17 Championship. In 20 10, 16-year-old Ansailong won the singles championship of the World Youth Badminton Championship, becoming the first European player to win this honor. Since then, he has become famous in European badminton, and is even regarded as Gade's successor. Then officially set foot on the adult field of world badminton. 20 12 runner-up in the French Super Tournament, broke into the semi-final of the Singapore Super Tournament. In 20 13, he was a member of the Danish team who won the third place in Sudirman Cup.
At the 20 14 World Championships in Copenhagen, he beat Henry Huldt Caanen of Sweden and Eric Mays of the Netherlands 2-0 in the first lap and the second lap respectively. In the third round, Ruan Jinming, one of the top four in the last World Championships, also won 2-0 (21-kloc-0/6,21-17). In the quarterfinals, he defeated Zhou Tiancheng of China Taipei 2-0(2 1- 14, 2 1- 14) and entered the semi-finals. In the semi-final, Li Zongwei, the top seed of Malaysia, lost 0-2( 17-2 1, 15-2 1) in straight sets, and only won the third place, but she has already broken her personal best result in the World Championships.