The Wales national Under 20 rugby team is for Welsh rugby union players aged 20 or under on 1 January of the year during which they are selected.
The England Under 20 rugby team are the newest representative rugby union team from England. They replace the two former age grade teams Under 19s and Under 21s. They compete in the annual Six Nations Under 20s Championship and World Rugby Under 20 Championship.
The 2010 IRB Junior World Championship was the third annual international rugby union competition for Under 20 national teams, this competition replaced the now defunct under 19 and under 21 world championships. The event was organised by rugby's governing body, the International Rugby Board (IRB). The competition was contested by 12 men's junior national teams and was held in June 2010 and hosted by Argentina. The competition was won by New Zealand.
The Canada under 20 rugby team is the junior national rugby union team from Canada. It replaced the two former age grade teams, the under 19s and under 21s, in 2008. The team competed at the IRB Junior World Championship in 2008 and 2009 but were relegated to the IRB Junior World Rugby Trophy for 2010. The team has yet to make their way back to the top competition.
The 2011 IRB Junior World Championship was the fourth annual international rugby union competition for Under 20 national teams, this competition replaced the now defunct under 19 and under 21 world championships. The event was organised by rugby's governing body, the International Rugby Board (IRB). The winners were New Zealand, who won all the competitions held since the inaugural year in 2008.
The 2012 IRB Junior World Championship was the fifth IRB Junior World Championship, an annual international rugby union competition for Under-20 national teams. This competition replaced the now defunct Under 19 and Under 21 world championships. The event was held in South Africa between 4 and 22 June 2012 and organised by world rugby's governing body, the International Rugby Board (IRB). A total of 12 nations played in the tournament. New Zealand came into the tournament as defending champions. South Africa were crowned 2012 champions after defeating New Zealand 22–16 in the final on 22 June at Newlands Stadium.
The Australia national under-20 rugby union team, nicknamed the Junior Wallabies, is the national under-20 rugby union team that represents Australia. The team has been competing at the annual World Rugby U20 Championship since it began in 2008, replacing the previously held under-19 and under-21 championships. The team also competes at the Oceania U20 Championship as of 2015 and the U20 Rugby Championship since 2024.
The United States national under-20 rugby union team, for sponsorship reasons known as the AIG Men's Junior All-Americans, is the United States' junior rugby team at the national level. The U-20 team has competed at the IRB Junior World Championship and at several IRB Junior World Rugby Trophy tournaments.
The 2012 Pacific Nations Cup rugby union tournament was held between the four national sides on the Pacific Rim: Fiji, Japan, Samoa and Tonga.
The Fiji national under 20 rugby team is for Fijian rugby union players aged 20 or under on January 1 of the year during which they are selected.
The 2013 IRB Junior World Championship was the sixth, IRB Junior World Championship, an annual international rugby union competition for Under 20 national teams. The event was organised in France by rugby's governing body, the IRB. A total of twelve nations played in the tournament. South Africa went into the tournament as defending champions, after winning the tournament for the first time in 2012. England were crowned the 2013 champions for the first time after defeating Wales 23–15 in the final on the 23 June at Stade de la Rabine in Vannes.
The Italy national under-20 rugby union team has competed in both the IRB Junior World Championship and IRB Junior World Rugby Trophy. They were one of four teams relegated in 2009 to the Junior World Trophy after finishing at the bottom of the tournament. They were again promoted to the 2011 IRB Junior World Championship after winning the 2010 IRB Junior World Rugby Trophy.
The Japan national under-20 rugby union team is Japan's junior national team in rugby union.
The Uruguay under 20 rugby team is the junior national rugby union team from Uruguay. They replace the two former age grade teams Under 19s and Under 21s. The team competed at the World Rugby Under 20 Championships and World Rugby U20 Trophy.
The 2014 IRB Junior World Championship was the seventh annual international rugby union competition for Under 20 national teams. The event was organised in Auckland, New Zealand by rugby's governing body, World Rugby, then known as the International Rugby Board. A total of 12 nations took part in the tournament. England went into the tournament as defending champions, after winning the tournament for the first time in 2013. England went on to win the Championship for a second time in two years. While hosts New Zealand, the most successful team in the tournament, were looking to win the title for the first time since 2011.
The 2013 Pacific Nations Cup rugby union tournament was held between five national sides in the Pacific Region: Canada, Fiji, Japan, Tonga, and USA.
The 2015 World Rugby Under 20 Championship was the eighth annual international rugby union competition for Under 20 national teams. The event was organised for the second time in Italy by rugby's governing body, World Rugby. Twelve nations played in the tournament, with matches hosted by Parma, Viadana, Calvisano and Cremona, host city of the final match. England went into the tournament as the two-time defending champions after they successfully defended their title in the 2014 IRB Junior World Championship. This was the first U20 Championship held after the sport's governing body changed its name from the International Rugby Board to the current World Rugby.
The 2015 World Rugby Pacific Nations Cup was the tenth edition of the World Rugby Pacific Nations Cup, an annual international rugby union tournament. The 2015 title was contested between the Tier 2 nations of Canada, Fiji, Japan, Samoa, Tonga and the United States.
Alatasi Tupou is a Samoan professional rugby union player from Apia, Samoa. He has represented Samoa in both rugby fifteens and sevens and was also a member of Mystic River's the 2016 National Championship squad in the American Rugby Premiership.
Semo Sititi 
Wales 74–3 Samoa 
