Japan Rugby League One has reversed a planned eligibility rule change that would have restricted participation for foreign-born players holding Japanese nationality in the domestic rugby competition. The new regulations had been set to take effect with the league's season launch in December.

Under the initial proposal, players who possessed Japanese passports but were born abroad—and who had not been educated in Japan during their formative years—would have faced limitations on qualifying for the league’s top eligibility category. Specifically, the draft rule required such players to have lived in Japan for six to nine years during junior school and junior high school to be fully eligible.

However, following a legal challenge filed by 24 affected players, the league announced a revision of the requirements. The group included notable figures such as Timothy Lafaele, a key member of Japan’s national team during the 2019 Rugby World Cup. These players, all of whom hold Japanese passports but were born outside the country, argued against the restrictions in court, prompting the league to reassess its stance.

In an official statement, Japan Rugby League One acknowledged shortcomings in its communication and stakeholder engagement regarding the rule changes. It affirmed that players who acquire Japanese nationality before the end of May 2025 will be treated equally with native-born players for eligibility purposes, effectively nullifying the prior residency-based criteria.

The amendment reflects growing awareness of Japan’s evolving rugby landscape, where many athletes born in rugby-strong nations such as Australia and New Zealand move to Japan at a young age to pursue professional opportunities. Several of the players involved in the legal action contributed significantly to Japan’s historic advance to the quarter-finals of the 2019 World Cup, marking the first time an Asian country reached that stage.

The league emphasized its commitment to take player feedback seriously and to improve transparency and communication with all parties in future policy developments. The decision marks a notable shift in Japan Rugby League One’s approach to player eligibility and underlines the league’s recognition of the diverse backgrounds of its talent pool.