Ishitaka, Yusuke
Current rating: 1500
| Grand Prix Kyoto 2007 (PLC standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 257 | Kimura, Shigeki (1479) | Won 2-0 | +181518 |
| 2standard | 7 | Suzuki, Tomohiro (1483) | Lost 0-2 | -191499 |
| 3standard | 168 | Minato, Junichi (1535) | Lost 1-2 | -171482 |
| 4standard | 292 | Yamasaki, Sadaharu (1373) | Won 2-1 | +161498 |
| 5standard | 278 | Shibuya, Tsutomu (1509) | Won 2-1 | +181516 |
| 6standard | 210 | Tamura, Ryo (1600) | Won 2-0 | +201536 |
| 7standard | 77 | Ogawa, Hiroyuki (1513) | Lost 1-2 | -191517 |
| 8standard | 160 | Ishibashi, Satoshi (1537) | Lost 0-2 | -171500 |
| top | average opponent: 1504record: 4-4 | new rating: 1500 | ||
| Grand Prix Niigata 2005 (Kamigawa block) | starting rating: 1536 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 110 | Kondou, Hiroaki (1486) | Won 2-0 | +171553 |
| 3block | 7 | Sato, Masakatsu (1536) | Lost 1-2 | -181535 |
| 4block | 122 | Suzuki, Yuta (1503) | Lost 1-2 | -191516 |
| 5block | 135 | Kise, Masato (1632) | Lost 1-2 | -161500 |
| top | average opponent: 1539record: 1-3 | new rating: 1500 | ||
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 137 | Kuroda, Ryouhei (1516) | Won 2-0 | +181518 |
| 2standard | 20 | Sakamoto, Sakito (1479) | Won 2-1 | +181536 |
| 3standard | 13 | Toriumi, Takashi (1382) | Won 2-0 | +151551 |
| 4standard | 99 | Masui, Yuusuke (1585) | Lost 1-2 | -181533 |
| 5standard | 77 | Taru, Genki (1609) | Lost 0-2 | -161517 |
| 6standard | 205 | Yamada, Tsutomu (1629) | Won 2-0 | +201537 |
| 7standard | 147 | Ootsuki, Masahiro (1483) | Won 2-1 | +171554 |
| 8standard | 50 | Tanaka, Yuuya (1558) | Lost 0-2 | -181536 |
| top | average opponent: 1530record: 5-3 | new rating: 1536 | ||