Yamamoto, Kenichirou
Current rating: 1501
Record: 3-3
| Grand Prix Kitakyushu 2009 (ZEN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 44 | Haratake, Noriyuki (1439) | Won 2-1 | +171517 |
| 2sealed | 45 | Tsuruta, Takayuki (1403) | Won 2-0 | +161533 |
| 3sealed | 49 | Okabayashi, Masanao (1603) | Lost 0-2 | -171516 |
| 4sealed | 116 | Fujita, Daizen (1519) | Won 2-1 | +181534 |
| 5sealed | 60 | Miyazaki, Michimasa (1537) | Lost 0-2 | -181516 |
| 6sealed | 126 | Nakamura, Yusuke (1651) | Lost 1-2 | -151501 |
| average opponent: 1525record: 3-3 | new rating: 1501 | |||