The League of Legends Circuit Oceania (LCO) was the top-level of professional League of Legends competition in Oceania, founded in 2021 and hosted by ESL Australia and Guinevere Capital.

History

The LCO replaced the Oceanic Pro League (OPL), hosted by Riot Games Oceania from 2015 to 2020. The annual season consisted of two splits, each of which conclude in a double-elimination tournament between the top five teams.

Before 2023, the winner of split 1 qualified for the Mid-Season Invitational (MSI), while the winner of split 2 qualified for the League of Legends World Championship. However, in 2023 and 2024, the top two teams from each LCO split were seeded into the Pacific Championship Series (PCS) playoffs and competed with other PCS (and later LJL) teams for a chance to represent the larger region at international events. LCO teams no longer qualified directly to MSI and Worlds.

On 20 September 2024, the LCO officially folded, with Riot Games exploring "new solutions" to replace it. It is currently unknown what league will replace the LCO for teams in Oceania and what role it will play in promoting teams to the new Asia-Pacific tier 1 league, the League of Legends Championship Pacific (LCP).

On 2 November 2024, Chiefs Esports Club with champion of LCO 2023 Split 2 Playoffs, is selected as a guest team for the LCP 2025 season.

On 13 January 2025, Ground Zero Gaming with Champion of LCO 2024 Split 2 Playoffs, is selected as a participation for the PCS 2025 season.

On 16 August 2025, the Oceanic Promotion Qualifier (OPQ) 2025 season League begin, the OPQ 2025 will be played in a double elimination bracket. OPQ is the first Riot-sanctioned Oceanic tournament following the discontinuation of the LCO. Teams will compete for a spot in the LCP 2026 Promotion.

The "LOL - LCO Spring" is an premier esports tournament showcasing the best League of Legends talent from the Oceania region. Held annually during the spring season, this competition features top-tier professional teams competing for regional supremacy, valuable ranking points, and a chance to qualify for international events. Fans can expect intense matches, strategic gameplay, and electrifying moments as teams battle it out across a series of best-of series formats. The tournament not only highlights the skill and dedication of Oceania's League of Legends community but also serves as a platform for emerging talent to shine on the competitive stage. With vibrant production, passionate fans, and high-stakes action, the LOL - LCO Spring is a must-watch event for esports enthusiasts and League of Legends fans alike.