Kawanaka, Yoshiaki
Current rating: 1662
| Grand Prix Kitakyushu 2009 (ZEN limited) | starting rating: 1632 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 95 | Ikeda, Kohei (1500) | Won 2-1 | +151647 |
| 2sealed | 34 | Suzuki, Nobuyoshi (1822) | Won 2-1 | +211668 |
| 3sealed | 51 | Saito, Tomoya (1641) | Lost 0-2 | -181650 |
| 4sealed | 117 | Yamamoto, Arihiro (1390) | Won 2-1 | +131663 |
| 5sealed | 77 | Uto, Yoriaki (1499) | Won 2-0 | +151678 |
| 6sealed | 49 | Kamei, Shunsuke (1680) | Won 2-0 | +181696 |
| 7sealed | 19 | Sumikawa, Youhei (1572) | Won 2-1 | +161712 |
| 8sealed | 23 | Yamada, Yasushi (1629) | Won 2-0 | +161728 |
| 9draft | 49 | Ishimaru, Ken (1778) | Lost 0-2 | -171711 |
| 10draft | 44 | Shibuya, Takuma (1700) | Won 2-1 | +181729 |
| 11draft | 6 | Imura, Satoshi (1755) | Lost 0-2 | -171712 |
| 12draft | 43 | Hirashima, Yuutarou (1758) | Lost 0-2 | -171695 |
| 13draft | 10 | Yamano, Tomoya (1717) | Lost 1-2 | -181677 |
| 14draft | 28 | Kumoura, Daisuke (1819) | Lost 1-2 | -151662 |
| top | average opponent: 1662record: 8-6 | new rating: 1662 | ||
| Grand Prix Shizuoka 2008 (MOR standard) | starting rating: 1645 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 22 | Kinoshita, Takahiro (1569) | Won 2-1 | +161661 |
| 3standard | 119 | Fujimoto, Taichi (1617) | Lost 0-2 | -191642 |
| 4standard | 180 | Saito, Taishi (1520) | Won 2-1 | +161658 |
| 5standard | 72 | Endo, Ryota (1521) | Lost 0-2 | -201638 |
| 6standard | 182 | Honnami, Tomoyuki (1675) | Lost 0-2 | -181620 |
| 7standard | 171 | Ichikawa, Yasura (1467) | Won 2-1 | +161636 |
| 8standard | 205 | Jitsukawa, Naofumi (1537) | Won 2-1 | +161652 |
| 9standard | 98 | Yoshikawa, Yuta (1523) | Lost 0-2 | -201632 |
| top | average opponent: 1554record: 4-4 | new rating: 1632 | ||
| Grand Prix Kitakyushu 2007 (LRW limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 65 | Seki, Keita (1600) | Won 2-1 | +201520 |
| 2sealed | 30 | Miura, Tadayuki (1389) | Won 2-0 | +151535 |
| 3sealed | 29 | Tomii, Tsubasa (1688) | Won 2-0 | +211556 |
| 4sealed | 28 | Shiozu, Ryouma (1777) | Won 2-0 | +221578 |
| 5sealed | 16 | Ishida, Itaru (1972) | Lost 0-2 | -111567 |
| 6sealed | 21 | Huang, Tsai-Wei (1597) | Lost 1-2 | -171550 |
| 7sealed | 64 | Weng, Li-Cheng (1526) | Won 2-0 | +171567 |
| 8sealed | 33 | Ehara, Yoshihide (1562) | Won 2-1 | +181585 |
| 9draft | 21 | Anan, Kazuyoshi (1587) | Won 2-1 | +181603 |
| 10draft | 11 | Kurihara, Shingou (2054) | Lost 1-2 | -101593 |
| 11draft | 30 | Bandou, Junichirou (1797) | Won 2-1 | +211614 |
| 12draft | 25 | Watanabe, Yuuya (1790) | Won 2-0 | +221636 |
| 13draft | 23 | Takanashi, Kouji (1680) | Won 2-1 | +181654 |
| 14draft | 6 | Morita, Masahiko (2144) | Lost 1-2 | -91645 |
| top | average opponent: 1726record: 10-4 | new rating: 1645 | ||