Shikatake, Naoki
Current rating: 1588
Record: 13-8
| Grand Prix Hiroshima 2003 (extended) | starting rating: 1553 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 57 | Yamashita, Kohji (1474) | Won 2-0 | +171570 |
| 2extended | 39 | Ito, Mitsuru (1518) | Won 2-0 | +171587 |
| 3extended | 43 | Nagaoka, Takayuki (1718) | Won 2-0 | +201607 |
| 4extended | 29 | Biwaki, Toshiaki (1658) | Won 2-1 | +191626 |
| 5extended | 4 | Nomichi, Hideki (1672) | Lost 1-2 | -171609 |
| 6extended | 26 | Maeba, Hideaki (1584) | Won 2-0 | +171626 |
| 7extended | 28 | Ikeda, Kei (1548) | Lost 0-2 | -191607 |
| 8extended | 35 | Terada, Atsushi (1618) | Won 2-1 | +181625 |
| 9extended | 31 | Terasawa, Kazuya (1711) | Won 2-1 | +201645 |
| 10extended | 17 | Azuma, Motokiyo (1586) | Lost 0-2 | -191626 |
| 11extended | 25 | Kakumae, Teruya (1566) | Lost 0-2 | -191607 |
| 12extended | 24 | Mukuno, Yuuji (1592) | Lost 0-2 | -191588 |
| average opponent: 1604record: 7-5 | new rating: 1588 | |||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 138 | Fujisawa, Junichiro (1500) | Won 2-1 | +181518 |
| 2block | 45 | Atake, Tomoki (1497) | Won 2-1 | +181536 |
| 3block | 142 | Suginaka, Toshio (1536) | Lost 0-2 | -181518 |
| 4block | 283 | Hanzawa, Tatsuya (1499) | Lost 0-2 | -191499 |
| 5block | 394 | Ohno, Hiroshi (1484) | Won 2-0 | +181517 |
| 6block | 278 | Yoshioka, Yasuyuki (1536) | Won 2-1 | +181535 |
| 7block | 117 | Yasui, Koichi (1534) | Won 2-1 | +181553 |
| 8block | 149 | Kato, Kazuki (1539) | Won 2-0 | +181571 |
| 9block | 45 | Yagi, Hiroyuki (1572) | Lost 0-2 | -181553 |
| average opponent: 1522record: 6-3 | new rating: 1553 | |||