Ratings
2016-06-26: 1st King of Kings(Korea)
| KIM Seongchan | 25-39 | HONG Seonguk |
| CHUNG Jihoon | 42-22 | HONG Seonguk |
| HONG Seonguk | 27-37 | HONG Jaeseong |
| HONG Seonguk | 56-08 | AHN Hwimin |
| NAM Sungwoo | 15-49 | HONG Seonguk |
| HONG Seonguk | 30-34 | SOHR Jaeyoung |
2015-10-03: 1st Korea Masters(Korea)
| KIM Seongchan | 20-44 | HONG Seonguk |
| HONG Seonguk | 28-36 | CHUNG Jihoon |
| HA Seungsup | 12-52 | HONG Seonguk |
| HONG Seonguk | 34-30 | SHIN Dukchul |
| KIM Kwanyoon | 32-32 | HONG Seonguk |
| OH Joungmok | 63-01 | HONG Seonguk |
| HONG Seonguk | 40-24 | KIM Dongil |
2013-08-04: 20st KOREA Othello Championship(Korea)
| YOON Jinseok | 13-51 | HONG Seonguk |
| HONG Seonguk | 19-45 | HA Seungsup |
| OH Joungmok | 49-15 | HONG Seonguk |
| HONG Seonguk | 46-18 | YOON Jinseok |
| HA Seungsup | 38-26 | HONG Seonguk |
| HONG Seonguk | 14-50 | OH Joungmok |
2011-10-03: 18th Korean Championships(Korea)
| HONG Seonguk | 52-12 | KIM Kyungjoong |
| HA Seungsup | 22-42 | HONG Seonguk |
| OH Joungmok | 29-35 | HONG Seonguk |
| KIM Kyungjoong | 24-40 | HONG Seonguk |
| HONG Seonguk | 50-14 | HA Seungsup |
| HONG Seonguk | 34-30 | OH Joungmok |
| OH Joungmok | 37-27 | HONG Seonguk |
| HONG Seonguk | 45-19 | OH Joungmok |
| OH Joungmok | 40-24 | HONG Seonguk |
2009-05-31: 13rd KoA Championships 2009(Korea)
| HONG Seonguk | 47-17 | LEE Kwangwook |
| HWANG Yoonjoo | 23-41 | HONG Seonguk |
| HONG Seonguk | 43-21 | HA Seungsup |
| OH Joungmok | 50-14 | HONG Seonguk |
| YU Yoseop | 21-43 | HONG Seonguk |
| YU Yoseop | 26-38 | HONG Seonguk |
| HONG Seonguk | 28-36 | YU Yoseop |
| YU Yoseop | 27-37 | HONG Seonguk |
2007-03-25: 6th Korean Othello Open(Korea)
| HA Seungsup | lost to | HONG Seonguk |
| HONG Seonguk | lost to | OH Joungmok |
| YU Yoseop | won against | HONG Seonguk |
| HONG Seonguk | won against | LEE Jiseung |
2005-10-06: 3rd Korean Othello Open(Korea)
2005-06-26: 2nd Korean Othello Open(Korea)
| HONG Seonguk | lost to | OH Joungmok |
| KIM Kyungjoong | won against | HONG Seonguk |
| KIM Hyosuk | lost to | HONG Seonguk |
| HONG Seonguk | lost to | LEE Kwangwook |
| KIM Seungsu | lost to | HONG Seonguk |
| KIM Seungsu | won against | HONG Seonguk |
| HONG Seonguk | lost to | LEE Kwangwook |
| HONG Seonguk | won against | KIM Kyungjoong |
| HONG Seonguk | won against | KIM Jongyong |
| HONG Seonguk | lost to | OH Joungmok |
| HONG Seonguk | won against | KIM Seungsu |