SK Gas Cup
Keywords: Tournament
The SK Gas Cup (Korean: SK가스배) "features two leagues with 5 players each. The winners of both leagues play a best of three match to decide the winner of the tournament. Time limit is 3 hours each." (source: Gobase)
As the name implies, the tournament is for new professionals.
The 2005 final is between Kang Tong-yun and Ko Keun-t'ae.
Previous winners (and defeated finalists):
6th 2002 Yi Se-tol (d. Paek Tae-hyeon 2-0) 5th 2001 Kang Chi-seong (d. Paek Tae-hyeon 2-0) 4th 2000 Yi Sang-hun (d. Yi Se-tol 2-1) 3rd 1999 Mok Chin-seok (d. Weon Seong-chin 2-0) 2nd 1998 Yi Seong-chae (d. Mok Chin-seok 1-0) 1st 1997 An Cho-yeong (d. Kim Yeong-sam 1-0)
It seems the earlier tournaments' final was a one-game match.