Ratings
OTANI Kosei (Japan)
Japanese name(s): 大谷 昴誠1 tournaments
6 results
Player ID: 17306
Rated T332 in Japan and T395 in Asia&Oceania&Africa and T469 in the World
Latest rating: 1955
6 results
Player ID: 17306
Rated T332 in Japan and T395 in Asia&Oceania&Africa and T469 in the World
Latest rating: 1955
2026-09-23: 22_Saitama_open(Japan)
| ISHIKAWA Hikaru | 34-30 | OTANI Kosei |
| OTANI Kosei | 48-16 | NISHIKAWA Soichiro |
| OTANI Kosei | 48-16 | KOBAYASHI Yuichiro |
| MISONO Minoru | 35-29 | OTANI Kosei |
| OTANI Kosei | 39-25 | KASAI Yoshiyuki |
| OTANI Kosei | 35-29 | MATSUMOTO Taiki |