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Top Challenge League

Top Challenge League
Current season or competition::
2016–17 Top League Challenge Series
Sport Rugby union
Instituted 2003
Inaugural season 2004
Number of teams 6
Country Japan (Japan Rugby Football Union)
Website Top League
Related competition Top League

The Top Challenge League is a rugby union competition in Japan. It is the second-highest level of rugby competition in the country and is a companies league; all the teams are owned by major companies and the players are generally employees of their company. The Japan Rugby Football Union created the Top League Challenge Series in 2003 in order to give teams playing in the second-tier regional leagues a pathway to progress to the top tier Top League; this became the Top Challenge League in 2017 when a second-tier league was introduced.

For the 2003–04 season, a Top League competition was created as the top-tier competition in Japan, consisting of twelve teams. All remaining teams were placed in one of three regional leagues, as follows:

The Top League Challenge Series was introduced as a post-season competition for the leading teams from these three regional leagues to win promotion to the Top League for the following season.

In August 2016, the JRFU announced that the Top League Challenge Series would become a second-tier league from 2017 onwards, known as the Top Challenge League.

Between 2003–04 and 2016–17, the Top League Challenge Series consisted of two divisions – the Challenge 1 and the Challenge 2 series. The three teams that won the regional leagues progressed to the Challenge 1 series, while the runners-up progressed to the Challenge 2 series. In both divisions, teams played in a round-robin format to determine the final standings.

While the exact format varied from season to season, a number of top-placed teams in the Challenge 1 won automatic promotion to the next season's Top League each season, while the next-best teams qualified for promotion play-off matches against teams that finished towards the bottom of that season's Top League. The top teams from Challenge 2 would either qualify to the promotion play-off matches, or progress to the same season's Challenge 1 series.

The following Top League Challenge Series were played as post-season play-offs:


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