The World Tag League is a professional wrestling round-robin tag team tournament held by New Japan Pro-Wrestling as a spin-off of the popular singles tournament, the G1 Climax. It was created in 1991 as the Super Grade Tag League, as a continuation of a regular tag team tournament held since 1980, gaining the name G1 Tag League in 1999. In 2012, NJPW's new owners, the Bushiroad company, renamed the tournament to its current form. Since the tournament acquired its current name, the winning team earns the right to challenge for the IWGP Tag Team Championship, assuming the team does not hold the title at the time of their victory.
1980
The 1980 MSG Tag League featured 9 teams in a single block and was held from November 21 to December 10, 1980. ==1981==
1981
The 1981 MSG Tag League featured 10 teams in a single block and was held from November 19 to December 10, 1981. Due to a tie for second place, the two second-place teams faced each other in a semifinal to decide the finalists. ==1982==
1982
The 1982 MSG Tag League featured 8 teams in a single block and was held from November 19 to December 10, 1982. "Young Simpson" may be a mistranslation; no data has been found other than being tag team partner of British wrestler Wayne Bridges. † Bridges and Samson withdrew from the tournament and returned to the United Kingdom following the passing of Bridges's father. ==1983==
1983
The 1983 MSG Tag League featured 9 teams in a single block and was held from November 18 to December 8, 1983. † Hanson was injured and could not compete in the final. ==1984==
1984
The 1984 MSG Tag League featured 7 teams in a single block and was held from November 16 to December 5, 1984. † Hogan was "injured" after their first match and returned to the United States, forfeiting the rest of his and The Wild Samoan's tournament matches. ==1985==
1985
The 1985 IWGP Tag Title League featured 8 teams in a single block to determine the inaugural
IWGP Tag Team Champions, and was held from November 15 to December 12, 1985. † Brody and Snuka no-showed the finals and jumped to
All Japan Pro Wrestling ==1986==
1986
The 1986 Japan Cup Tag League featured 8 teams in a single block and was held from November 14, 1986, to December 11, 1986. ==1987==
1987
The 1987 Japan Cup Tag League featured 8 teams in a single block and was held from November 9, 1987, to December 7, 1987. † On the eighth night of the tournament, during a six-man tag team match, Maeda
stiff kicked Choshu in the face, breaking his orbital bone and sidelining him for a month. Choshu would be replaced by Fujiwara in the tournament while Maeda was suspended, forfeiting the rest of his and Super Strong Machine's tournament matches. ==1991==
1991
The 1991 Super Grade Tag League featured 7 teams in a single block and was held from October 5 to October 17. Due to a tie for second place, the two second-place teams faced each other in a semifinal to decide the finalists. ==1992==
1992
The 1992 Super Grade Tag League, featuring 7 teams, was held from October 8 to October 21. ==1993==
1993
The 1993 Super Grade Tag League, featuring 10 teams, was held from October 8 to November 4. ==1994==
1994
The 1994 Super Grade Tag League, featuring 10 teams, was held from October 19 to October 30. † Yatsu teamed
Tadao Yasuda, who filled in for Choshu, for their match against Hashimoto and Nakanishi. ==1995==
1995
The 1995 Super Grade Tag League, featuring 7 teams, was held from October 15 to October 30. Due to a tie for second place, the two second-place teams faced each other in a semifinal to decide the finalists.
Masa Saito also replaced
Riki Choshu in his team with
Kensuke Sasaki after one match. ==1996==
1996
The 1996 Super Grade Tag League, featuring 8 teams, was held from October 13 to November 1. It altered the traditional points system, rewarding just 1 point for a victory, and 0 for a draw or loss. ==1997==
1997
The 1997 Super Grade Tag League, featuring 8 teams, was held from November 18 to December 8. It used the same points system as the previous year, awarding 1 point for a win and 0 for a loss or draw. Due to a tie for second place, the two second-place teams faced each other in a semifinal to decide the finalists. ==1998==
1998
The 1998 Super Grade Tag League, featuring 7 teams, was held from November 16 to December 6. It returned to the traditional points system, awarding 2 points for a victory, 1 for a draw, and 0 for a loss. Due to a four-way tie for first place, the four teams were paired in the semifinals, with the two winners facing off in the final. . ==1999==
1999
The 1999 G1 Tag League, featuring 9 teams, was held from September 10 to September 23. ==2000==
2000
The 2000 G1 Tag League, featuring 7 teams, was held from November 17 to November 30. It strayed slightly from the standard formula; as there was a four-way tie for first place, all four teams advanced to a small single-elimination tournament to decide the 2000 G1 Tag champions. ==2001==
2001
The 2001 G1 Tag League, featuring 8 teams, was held from November 30 to December 11. ==2003==