Today 6 Koreans players were promoted by 1-Dan:

Ryu Jaehyeong 7p -> 8p
Yun Junsang 6p -> 7p
Baek Hongsuk 5p -> 6p
Park Seungcheol 5p -> 6p
Kim Jinwoo 3p -> 4p
Kim Seokheung 3p -> 4p