Jeju United moved top of the K-League with a 5-0 win over Gangwon FC. Veteran striker Kim Eun-jung opened the scoring from the penalty spot after 12 minutes. The former FC Seoul star was brought down by Kim Byong-kyom and dusted himself down to convert the spot-kick.
Korea Republic international Koo Ja-cheol extended the islanders' advantage 12 minutes later by volleying home from outside the area. Jeju increased their lead in the second period. Two goals from Brazilian striker Santos after 55 and 57 minutes sealed the win before Hong Jung-ho added a fifth late on. The three points take Jeju a point ahead of previous leaders Ulsan Horang-I.
FC Seoul climbed to second with a 1-0 win over Chunnam Dragons. The only goal of the game came after 65 minutes through Ko Yo-han. K-League champions Jeonbuk Motors picked up a second successive win with a comfortable 4-0 triumph over Daejeon Citizen thanks to goals from Choi Tae-wook, Eninho, Krunoslav Lovrek and Luiz Henrique.
Elsewhere, Pohang Steelers extended their winless streak to 10 games as they lost 4-2 at Busan I'Park, while Gyeongnam FC defeated Gwangju Sangmu 1-0.