19 teams participate
All participating LCK 2018 Summer teams
All participating CK 2018 Summer teams
Winner from 2018 KeG Championship
Top 4 in 2018 Championship Points (KT Rolster, Afreeca Freecs, Kingzone DragonX, and Griffin) are granted a bye to the Playoffs
Elimination and Qualifying Rounds
Four single elimination brackets
Matches are best of three
Winner of each bracket advances to Playoffs
Playoffs
Single elimination bracket
Quarterfinals are best of three
All other matches are best of five