The GS Caltex Cup (Korean: GS칼텍스배) is a Go competition.

[edit] Outline

The GS Caltex Cup replaced the LG Refined Oil Cup. It is sponsored by the GS Caltex Corporation and Daily Economic News. It currently has the biggest prize in South Korea. The main tournament is a 16 player knockout. The final is a best-of-5. Komi is 6.5 points and the time limit is 4 hours each. The winner's purse is 50,000,000 Won ($50,000).

[edit] Past winners

Player	Years Held
Choi Cheol-han	2005
Lee Sedol	2006
Park Young-Hoon	2007
Park Young-Hoon	2008