[4] On 25 September 2019, Garena announced its intention to merge the LMS and LST into a single league.

This was fully announced by Riot Games as the Pacific Championship Series (PCS) on 19 December for a 2020 start.

[10] During the season, DFM's dominance would be replaced by that of Fukuoka SoftBank Hawks Gaming (owned by the Nippon Professional Baseball (NPB) team of the same name), who won both LJL splits and finished as PCS runners-up in Spring and Summer, qualifying for the 2024 World Championship in the process.

On 11 June 2024, Riot Games released a blog post titled "LoL Esports: Building Towards a Brighter Future", in which they would overhaul the competitive scene for 2025.

[11] On 19 July Riot publicly announced that the league would consist of four partners and four guest teams.

Despite being part of the larger Asia-Pacific region, it was announced on 20 September 2024 that the LCO had folded.