SK, the owners of a K-League team based in Bucheon (Bucheon SK), surprised many when, with little warning, they moved the whole club to the island of Jeju, renaming the club Jeju United FC. The club based itself in Seogwipo where it took over the vacant Jeju World Cup Stadium.
Gyeongnam FC from the city of Changwon, joined the K-league, increasing the number of clubs to fourteen.
March 12 – The 2006 season of the K-League kicks off.
April 7 – Goyang Kookmin Bank beats Incheon Korail 3-1 as the second division, the N-League gets underway.
May 10 – Stage 1 of the K-League concludes with Seongnam Ilhwa Chunma as the winners.
June 13 – Second-half goals from Lee Chun-Soo and Ahn Jung-Hwan help Korea recover from 1-0 down, to beat Togo at the World Cup.
June 18 – A late goal from Park Ji-Sung allows Korea to draw 1-1 with France at the World Cup.
June 23 – Korea's World Cup campaign comes to an end after a 2-0 loss to Switzerland.
June 26 - Pim Verbeek is announced as the new head coach of Korean national football team, replacing Dick Advocaat who left to take up a position with FC Zenit Saint Petersburg in Russia.
July 8 - Choi Jin-Cheul retires from all football following the Jeonbuk v Incheon United Hauzen Cup match.
July 8 – Stage 1 of the N-League concludes with Goyang Kookmin Bank as the winners.
July 26 - The Korean Football Association retains Afshin Ghotbi and Hong Myung-Bo as assistant coaches to new national team coach Pim Verbeek.
July 26 - FC Seoul win the Hauzen Cup 2006 (K-League off-season cup) with one match spare, after drawing 1-1 away to Suwon Samsung Bluewings.
July 28 - Changwon City beat Ulsan Mipo 2-1 in the final of the N-League Cup final (off-season cup tournament).
August 23 – Stage 2 of the K-League to commence
- Korea's score given first
Key
H = Home match
A = Away match
N = Neutral site match
F = Friendly
ACQ = Asian Cup qualification match
WCF = FIFA World Cup 2006 Finals Group stage
2 - League champions (2005) versus FA Cup winners (2005)
3 - K-League teams only
4 - N-League and lower teams only
5 - Tournament for non-professional teams (inc. K-League reserve teams)
6 - FA Cup qualification tournament for teams outside of the K-League and the N-League
K-League
Seongnam Ilhwa Chunma (as Stage 1 winners) and Suwon Samsung Bluewings (as Stage 2 winners) qualify for the championship play-offs, along with the next best two teams in the above table, Pohang Steelers and FC Seoul.
Championship Play-offs:
Semi-finals
Seongnam Ilhwa Chunma 1-0 FC Seoul
Suwon Samsung Bluewings 1-0 Pohang Steelers
Final
Seongnam Ilhwa Chunma 1-0, 2-1 Suwon Samsung Bluewings
Korean players
Baek Ji-Hoon from FC Seoul to Suwon Samsung Bluewings
Choi Sung-Yong from Suwon Samsung Bluewings to Yokohama FC
Jin Kyung-Sun from Ulsan Mipo to Daegu FC
Kim Dong-Jin from FC Seoul to FC Zenit Saint Petersburg
Lee Eul-Yong from Trabzonspor to FC Seoul
Lee Ho from Ulsan Hyundai Horang-i to FC Zenit Saint Petersburg
Lee Kwan-Woo from Daejeon Citizen to Suwon Samsung Bluewings, $1.5m
Lee Sang-Tae from Suwon Samsung Bluewings to Gyeongnam FC
Moon Min-Kwi from Gyeongnam FC to Suwon Samsung Bluewings
Seo Dong-Won from Incheon United to Seongnam Ilhwa Chunma
Bosnian players
Nikola Vasiljevic from Bosnia's FK Modriča Maxima to Jeju United FC
Brazilian players
Dudu from Seongnam Ilhwa Chunma to FC Seoul
Gabriel Lima from Daegu FC to ?
Itamar Batista Da Silva from Suwon Samsung Bluewings to Seongnam Ilhwa Chunma
Jefferson Gama Rodrigues from FC Artmedia Bratislava to Daegu FC
Ricardo from Seongnam Ilhwa Chunma to Busan I'Park
Sandro Cardoso dos Santos from Suwon Samsung Bluewings to Chunnam Dragons (loan)
Selmir from Incheon United to Chunnam Dragons
Silva from Corinthians Alagoano to Suwon Samsung Bluewings
A Brazilian player from the Mexican league to Daejeon Citizen
Colombian players
Milton Fabian Rodriguez from Jeonbuk Hyundai Motors to Newcastle United Jets (?)
Croatian players
Jasmin Agic from Incheon United to Dinamo Zagreb
Macedonian players
Blaze Ilioski from FK Rabotnički to Incheon United
Romanian players
Adrian Neaga from Chunnam Dragons to Seongnam Ilhwa Chunma, $1.1m
Serbian players
Dragan Mladenović from Red Star Belgrade to Incheon United
Uruguayan players
Juan Manuel Olivera from Danubio F.C. to Suwon Samsung Bluewings
Choi Yong-Soo, August 5
