[3] The League is the first professional rugby union competition in North America to offer contracts to women.

[5] Former USA Men's XV head coach Mike Tolkin joined the league in 2021 as general manager.

[6] In May 2021, the league announced 10 ambassadors from the USA Men's and Women's Rugby Sevens teams would join, including Perry Baker, Naya Tapper, Alev Kelter, Danny Barrett, Folau Niua, Stephen Tomasin, Kevon Williams, Abby Gustaitis, Ilona Maher and Carlin Isles.

[12] The men's Experts won the Inaugural Championships behind performances from Perry Baker and tournament MVP Logan Tago.

[13] The men's final was notably in that it was decided by a drop goal contest with a similar format to association football.

[12] The competition scaled to a three stop circuit in 2022, with tournaments held in San Jose, California, at PayPal Park, Washington, D.C., at Audi Field, and the 2022 Championship at Q2 Stadium.

[17] The League announced in December 2022 that in 2023 it would expand into a conference structure and play a five-tournament circuit.

Additionally, the 2023 expansion added regional names to the teams for the first time in league history.

[22][23] The All Blacks subsequently announced that other New Zealand stars Stacey Waaka, Kelsey Teneti, Tysha Ikenasio, Manaia Nuku, Rhodes Featherstone and Kitiona Vai would also be competing.

[38][39] Despite cold and wet conditions the 2024 PR7s All-Star Tournament drew a crowd of nearly 5,000 for the six professional matches in addition to three amateur showcases.

In the 2021 and 2022 seasons, all teams in the league would be onsite and play group stage matches with results determining participants in the final.

The league eliminated group stage play and instead moved to a knockout only format with semifinal matches leading into consolation and finals.

[59] In 2022, the league named its women's and men's championship trophies after Kathy Flores and A. Jon Prusmack, respectively.