The 2006 IIHF World U18 Championships were held in Ängelholm and Halmstad, Sweden. The championships began on April 12, 2006 and finished on April 22, 2006. Games were played at Ängelholms Ishall in Ängelholm and Sannarps Isstadion in Halmstad. The United States of America defeated Finland 3–1 in the final to claim the gold medal, while the Czech Republic defeated Canada 4–1 to capture the bronze medal.
The 2004 IIHF World U18 Championships were held in Minsk, Belarus. The championships began on April 8, 2004, and finished on April 18, 2004. Games were played at the Ice Palace and Palace sport in Minsk. Russia defeated the United States 3–2 in the final to claim the gold medal, while the Czech Republic defeated Canada 3–2 to capture the bronze medal.
The 2009 IIHF World U18 Championships were held in Fargo, North Dakota and Moorhead, Minnesota, United States. The championships ran from April 9 to April 19, 2009. Games were played at the Urban Plains Center in Fargo and the Moorhead Sports Center in Moorhead. Fargo-Moorhead defeated Providence, Rhode Island and St. Cloud, Minnesota for the rights to host the event.
The 2008 IIHF World U18 Championship Division I was an international under-18 ice hockey competition organised by the International Ice Hockey Federation. Both Division I tournaments made up the second level of the 2008 IIHF World U18 Championships. The Group A tournament was played in Toruń, Poland, and the Group B tournament was played in Riga, Latvia, both from 2 to 8 April 2008. The Czech Republic and Norway won the Group A and B tournaments respectively and gained promotion to the Top Division of the 2009 IIHF World U18 Championships.
The 2008 IIHF World U18 Championship Division II was an international under-18 ice hockey competition organised by the International Ice Hockey Federation. Both Division II tournaments made up the third level of competition of the 2008 IIHF World U18 Championships. The Group A tournament took place between 30 March and 5 April 2008 in Méribel and Courchevel, France and the Group B tournament was played from 23 to 29 March 2008 in Tallinn, Estonia. France and Hungary won the Group A and B tournaments respectively and gained promotion to the Division I of the 2009 IIHF World U18 Championships.
The 2009 IIHF World U18 Championship Division II was an international under-18 ice hockey competition organised by the International Ice Hockey Federation. Both Division II tournaments made up the third level of competition of the 2009 IIHF World U18 Championships. The Group A tournament took place between 22 and 28 March 2009 in Maribor, Slovenia and the Group B tournament took place between 16 and 22 March 2009 in Narva, Estonia. South Korea and Great Britain won the Group A and B tournaments respectively and gained promotion to Division I of the 2010 IIHF World U18 Championships.
The 2010 IIHF World U18 Championships was the 12th edition of the IIHF World U18 Championship. The tournament was held in Minsk and Babruysk, Belarus, between April 13 and April 23, 2010. Tournament games were played at the Minsk Sports Palace in Minsk and the Babruysk Arena in Babruysk. The Final was played at the newly opened Minsk-Arena. The United States won the gold medal for the second consecutive year with a 3–1 victory over Sweden in the championship game. The gold medal was the fifth for the United States since the tournament began in 1999; Sweden matched their best ever performance up to this point with a silver medal.
The 2011 IIHF World U18 Championship Division I was an international under-18 ice hockey competition organised by the International Ice Hockey Federation. Both Division I tournaments made up the second level of the 2011 IIHF World U18 Championships. The Group A tournament was played in Riga, Latvia, and the Group B tournament was played in Maribor, Slovenia. On 29 March 2011, Japan withdrew from the tournament due to the 2011 Japan earthquake. Latvia and Denmark won the Group A and B tournaments respectively and gained promotion to the Top Division of the 2012 IIHF World U18 Championships.
The 2004 IIHF World U18 Championship Division I was a pair of international under-18 ice hockey tournaments run by the International Ice Hockey Federation. The Division I tournaments made up the second level of competition at the 2004 IIHF World U18 Championships. The Group A tournament took place between 27 March and 2 April 2004 in Amstetten, Austria and the Group B tournament took place between 29 March and 4 April 2004 in Asiago, Italy. Switzerland and Germany won the Group A and Group B tournaments respectively and gained promotion to the Championship Division for the 2005 IIHF World U18 Championships. While Romania finished last in Group A and South Korea last in Group B and were both relegated to Division II for 2005.
The 2005 IIHF World U18 Championship Division I were a pair of international under-18 ice hockey tournaments run by the International Ice Hockey Federation. The Division I tournaments made up the second level of competition at the 2005 IIHF World U18 Championships. The Group A tournament took place between 3 April and 9 April 2005 in Maribor, Slovenia and the Group B tournament took place between 2 April and 8 April 2005 in Sosnowiec, Poland. Belarus and Norway won the Group A and Group B tournaments respectively and gained promotion to the Championship Division for the 2006 IIHF World U18 Championships. While Great Britain finished last in Group A and Italy last in Group B and were both relegated to Division II for 2006.
The 2013 IIHF U18 World Championship was the 15th IIHF World U18 Championship and was hosted in Sochi, Russia. This was also a test event for the facilities to be used in the 2014 Winter Olympics. It began on 18 April 2013 with the gold medal game played on 28 April 2013.
The 2007 IIHF World U18 Championship Division I were a pair of international under-18 ice hockey tournaments run by the International Ice Hockey Federation. The Division I tournaments made up the second level of competition at the 2007 IIHF World U18 Championships. The Group A tournament took place between 6 April and 12 April 2007 in Maribor, Slovenia and the Group B tournament took place between 4 April and 10 April 2007 in Sanok, Poland. Belarus and Denmark won the Group A and Group B tournaments respectively and gained promotion to the Championship Division for the 2008 IIHF World U18 Championships. While France finished last in Group A and Great Britain last in Group B and were both relegated to Division II for 2008.
The 2010 IIHF World U18 Championship Division I was an international under-18 ice hockey competition organised by the International Ice Hockey Federation. Both Division I tournaments made up the second level of the 2010 IIHF World U18 Championships. The Group A tournament was played in Herning, Denmark, and the Group B tournament was played in Krynica-Zdrój, Poland. Norway and Germany won the Group A and B tournaments respectively and gained promotion to the Top Division of the 2011 IIHF World U18 Championships.
The 2013 IIHF U18 World Championship Division I was two international under-18 ice hockey tournaments organised by the International Ice Hockey Federation. The Division I A and Division I B tournaments represent the second and the third tier of the IIHF World U18 Championships.
The 2010 IIHF World U18 Championship Division II was an international under-18 ice hockey competition organised by the International Ice Hockey Federation. Both Division II tournaments made up the third level of the IIHF World U18 Championships. The Group A tournament was played in Narva, Estonia, and the Group B tournament was played in Kyiv, Ukraine. Italy and Slovenia won the Group A and B tournaments respectively and gained promotion to the Division I of the 2011 IIHF World U18 Championships.
The 2015 World Junior Ice Hockey Championship Division I was played in two groups of six teams each. In each group the first-placed team is promoted to a higher level, while the last-placed team is relegated to a lower level. The winners of Division I B, Kazakhstan, were promoted to the 2016 Division I A and the winners of Division I A, Belarus, were promoted to the 2016 top division. Divisions I A and I B represent the second and the third tier of the IIHF World Junior Championship.
The 2016 IIHF U18 World Championship was the 18th IIHF World U18 Championship. It was played from April 14 to 24, 2016 in Grand Forks, North Dakota, USA.
The 2016 IIHF U18 World Championship Division I was two international under-18 ice hockey tournaments organised by the International Ice Hockey Federation. The Division I A and Division I B tournaments represent the second and the third tier of the IIHF World U18 Championship.
The 2022 IIHF World U18 Championship was the 23rd such event hosted by the International Ice Hockey Federation. Teams participated at several levels of competition. The competition also served as qualifications for the 2023 competition. On 28 February the IIHF "suspended all Russian and Belarusian National Teams and Clubs from participation in every age category and in all IIHF competitions or events until further notice", which resulted in a reformatting of the tournament. Due to the suspensions there are two open spots in the top division, two teams can be promoted for 2023 and no team will be relegated. Additionally, all eight teams will qualify for the QF round and will be reseeded according to their tournament ranking.
The 2022 IIHF U18 World Championship Division I was two international under-18 ice hockey tournaments organised by the International Ice Hockey Federation. The Division I A and Division I B tournaments represent the second and the third tier of the IIHF World U18 Championship.
Belarus 
Italy 
