Niihama, Tatsuo
Current rating: 1582
| Grand Prix Kobe 2014 (modern) | starting rating: 1576 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 716 | Tsumori, Youhei (1401) | Won 2-1 | +151591 |
| 2modern | 716 | Kawai, Katsuya (1492) | Won 2-0 | +161607 |
| 3modern | 709 | Kanda, Yuzuru (1535) | Lost 1-2 | -191588 |
| 4modern | 959 | Okuno, Kodai (1533) | Lost 0-2 | -191569 |
| 5modern | 988 | Matono, Kyouhei (1460) | Won 2-0 | +161585 |
| 6modern | 876 | Oguro, Takashi (1523) | Won 2-0 | +171602 |
| 7modern | 822 | Kamei, Kazuhiko (1468) | Lost 1-2 | -201582 |
| top | average opponent: 1487record: 4-3 | new rating: 1582 | ||
| Grand Prix Kobe 2011 (extended) | starting rating: 1610 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 143 | Ooshima, Junji (1539) | Won 2-0 | +171627 |
| 2extended | 159 | Taniguchi, Yuusuke (1514) | Lost 0-2 | -201607 |
| 3extended | 151 | Kido, Tomoyuki (1499) | Won 2-1 | +161623 |
| 4extended | 115 | Kato, Akinori (1499) | Lost 1-2 | -211602 |
| 5extended | 232 | Ono, Ippei (1397) | Won 2-1 | +151617 |
| 6extended | 136 | Suzuki, Sosuke (1468) | Lost 0-2 | -211596 |
| 7extended | 182 | O., Masanori (1509) | Lost 0-2 | -201576 |
| top | average opponent: 1489record: 3-4 | new rating: 1576 | ||
| Grand Prix Kobe 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 111 | Hiraishi, Tomohide (1500) | Lost 0-2 | -181482 |
| 2block | 528 | Tanigawa, Ikuyo (1446) | Won 2-1 | +171499 |
| 3block | 420 | Shimizu, Takuya (1500) | Won 2-0 | +181517 |
| 4block | 211 | Inoue, Takeshi (1535) | Won 2-1 | +191536 |
| 5block | 91 | Tominaga, Makoto (1501) | Won 2-1 | +171553 |
| 6block | 89 | Yamamaru, Naoki (1554) | Won 2-1 | +181571 |
| 7block | 56 | Komiya, Mitsuhiro (1571) | Won 2-1 | +181589 |
| 8block | 38 | Nada, Satoshi (1610) | Won 2-1 | +181607 |
| 9block | 8 | Takenaka, Tsuyoshi (1607) | Lost 0-2 | -181589 |
| 10block | 23 | Wakisaka, Yuusuke (1557) | Lost 1-2 | -181571 |
| 11block | 57 | Hoshino, Hiroaki (1609) | Won 2-1 | +191590 |
| 12block | 36 | Adachi, Takatsugu (1604) | Lost 0-2 | -181572 |
| 13block | 48 | Matsui, Kengaku (1600) | Won 2-1 | +181590 |
| 14block | 36 | Higashino, Masayuki (1694) | Lost 1-2 | -161574 |
| 15block | 40 | Kodani, Ryousuke (1557) | Won 2-0 | +181592 |
| 16block | 31 | Tamura, Kenichi (1593) | Won 2-0 | +181610 |
| top | average opponent: 1565record: 11-5 | new rating: 1610 | ||