Rift Rivals (RR) was a series of cross-regional League of Legends tournaments organized by Riot Games from 2017–2019.
[1][2] Rift Rivals was five concurrent tournaments where related regions would be pitted against each other.
[citation needed] In 2019 Rift Rivals, the event was narrowed to only the two largest tournaments: the LCS (NALCS) vs. the LEC (EULCS) for North America vs. Europe, and the LPL vs. LCK vs. LMS-VCS for South Korea / China / Taiwan / Vietnam.
Due to the COVID-19 pandemic, 2020 Rift Rivals was canceled by Riot, as the originally scheduled timeslot in July 2020 was replaced by a delayed Mid-Season Invitational (MSI).
Riot additionally announced it would "sunset" the tournaments.