The OSL (Ongamenet Starleague) along with the MSL (MBC Starleague) are the two most prestigious and well known individual leagues in the pro Korean Starcraft scene. The OSL in particular was the first major individual tournament in Korea and has been running since 1999. For more information about the entire format of the OSL, I recommend you check out TeamLiquid's 'Ultimate OSL FAQ'.

The 2009 Bacchus OSL is currently in the Round of 16 Group Stage, in which the top two players from each group of 4 will proceed to the round of 8.

Group A
1. Jaedong 2-0
2. EffOrt 1-1
3. YellOw[ArnC] 1-1
4. Flash 0-2

Group B
1. fantasy 2-0
2. type-b 1-1
3. Stork 1-1
4. BackHo 0-2

Group C
1. ZerO 2-0
2. go.go 1-1
3. Bisu 1-1
4. Hwasin 0-2

Group D
1. Leta 2-0
2. Canata 1-1
3. by.hero 1-1
4. Kwanro 0-2

mms://liveongame.gscdn.com/L1 - OnGameNet MMS Stream
Aers' (@ TL) OGN Stream
konadora's Livestream

TeamLiquid.net
OnGameNet
Thanks to Vedic & KekS for their great Proleague & GOM posts which the format of this was based around.

YellOw[ArnC] > Jaedong
BackHo < type-b
ZerO > Bisu
Leta < Kwanro

YouTube links above.