The organizers of LCK have unveiled the Play-in stage bracket for the 2025 season. In this stage, four teams will compete for two slots in the playoffs, where stronger teams are already waiting for them. All matches in this stage will be played in a Best-of-5 format.

Play-in Seeding and Match Schedule:
September 3 – Nongshim RedForce vs BRION
September 4 – Dplus KIA vs BNK FEARX
September 5 – Winners' match of the first round (the winner advances to the playoffs as the 5th seed).
September 6 – Match between teams that lost in the first round.
September 7 – Match between the lower bracket winner and the team that lost in the winners' final. The winner of this match will secure the last playoff ticket as the 6th seed.
The Rounds 3–5 stage in LCK 2025 Season takes place from July 23 to August 31.

Teams compete for a prize pool of $407,919, a championship title, and tickets to Worlds 2025.