Ratings
2007-05-21: 7th Korean Othello Open(Korea)
2007-03-25: 6th Korean Othello Open(Korea)
2007-01-22: 2007 South Korean Championship(Korea)
| LEE Jiseung | lost to | OH Joungmok |
| SEO Youjoon | won against | LEE Jiseung |
| LEE Jiseung | won against | HA Seungsup |
| JUNG Taejoon | won against | LEE Jiseung |
| KIM Yeongdae | lost to | LEE Jiseung |
| LEE Jiseung | won against | HA Seungsup |
| OH Joungmok | won against | LEE Jiseung |
| LEE Jiseung | won against | YU Yoseop |
| HONG Seonguk | won against | LEE Jiseung |
| LEE Jiseung | won against | LEE Taeeung |
| YU Yoseop | won against | LEE Jiseung |
| LEE Jiseung | won against | HONG Seogu |
| LEE Soomyung | won against | LEE Jiseung |