The 2013 WCS Korea Season 1 GSL is the second season of the GSL in 2013, and the first one using Heart of the Swarm.
- Round of 32 and round of 16 in "Dual Tournament" mode. All games BO3.
- Quarterfinals - Finals as single elimination playoffs. QF: BO5, SF/F: BO7.
Soulkey vs Parting
sOs vs KangHo
Roro vs Innovation
Bomber vs Symbol