Ratings
2023-08-12: 30th Korea championship(Korea)
| KIM Seong-Hyeon | 09-55 | JUNG Taejoon |
| KWAK Yujin | 52-12 | KIM Seong-Hyeon |
| KIM Jungsoo | 49-15 | KIM Seong-Hyeon |
| KIM Seong-Hyeon | 20-44 | KWAK Eunwoo |
| CHO Yeonho | 28-36 | KIM Seong-Hyeon |
2019-05-05: 28th Korea othello Championship(Korea)
| KIM Jungsoo | 41-23 | KIM Seong-Hyeon |
| KIM Seong-Hyeon | 08-56 | SOHR Jaeyoung |
| KIM Kwanyoon | 58-06 | KIM Seong-Hyeon |
| KIM Seong-Hyeon | 15-49 | AHN Taeyoung |
| LEE Chunae | 48-16 | KIM Seong-Hyeon |
| KIM Seong-Hyeon | 17-47 | PARK Jonghyun |
| KIM Seong-Hyeon | 11-53 | KIM Taeyeon |
2018-01-07: 2 King of Kings(Korea)
| SOHR Jaeyoung | 62-02 | KIM Seong-Hyeon |
| KIM Seong-Hyeon | 09-55 | SHIN Dongmyung |
| SHIN Donghyeon | 56-08 | KIM Seong-Hyeon |
| KIM Seong-Hyeon | 16-48 | LEE Chunae |
| PARK Jonghyun | 55-09 | KIM Seong-Hyeon |
| KIM Seong-Hyeon | 27-37 | HONG Hyunwoo |