Born May 6, 1981 | Nagano | Japan Professional Mahjong League (JPML) | Pro since 2006
2025 Draft | 9th Overall | 2025 – Present
2019 Draft | 1st Overall | 2019 – 2025
Twitter: @kotarouchikawa
List of Mahjong Achievements
- 35th JPML 10-Dan (十段位)
Uchikawa Kotaro (内川幸太郎)
M-League Watch 