Tamura, Chiaki
Current rating: 1610
Record: 20-18-1
| Grand Prix Kobe 2017 (modern) | starting rating: 1585 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 481 | Nohara, Ryuuji (1506) | Won 2-0 | +161601 |
| 4modern | 21 | Kobayashi, Kazutaka (1747) | Won 2-1 | +211622 |
| 5modern | 115 | Takao, Shota (1842) | Lost 1-2 | -141608 |
| 6modern | 381 | Harrington, Chris (1811) | Won 2-1 | +221630 |
| 7modern | 129 | Ikedo, Masakazu (1653) | Lost 0-2 | -181612 |
| 8modern | 417 | Satou, Kenji (1566) | Lost 0-2 | -191593 |
| 9modern | 439 | Ito, Yuta (1538) | Won 2-0 | +171610 |
| top | average opponent: 1666record: 4-3 | new rating: 1610 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 463 | Hayashi, Naoyuki (1562) | Won 2-0 | +201465 |
| 3standard | 366 | Saito, Taishi (1708) | Lost 1-2 | -131452 |
| 4standard | 824 | Itazu, Boram (1402) | Won 2-0 | +171469 |
| 5standard | 193 | Imanaka, Shinya (1534) | Won 2-1 | +191488 |
| 6standard | 262 | Nakayama, Kousuke (1553) | Won 2-1 | +191507 |
| 7standard | 164 | Sato, Naoki (1625) | Won 2-1 | +201527 |
| 8standard | 49 | Kihara, Atsuki (1803) | Won 2-1 | +231550 |
| 9standard | 28 | Kitaoka, Takaaki (1760) | Lost 1-2 | -141536 |
| 10standard | 58 | Kawashima, Takayuki (1523) | Won 2-0 | +181554 |
| 11standard | 32 | Nakamura, Atsushi (1828) | Lost 0-2 | -141540 |
| 12standard | 179 | Watanabe, Kouhei (1577) | Won 2-0 | +191559 |
| 13standard | 105 | Abe, Ken'Ichi (1738) | Won 2-1 | +211580 |
| 14standard | 86 | Nakayama, Takuya (1770) | Lost 0-2 | -141566 |
| 15standard | 112 | Abe, Takashi (1627) | Won 2-1 | +191585 |
| top | average opponent: 1644record: 10-4 | new rating: 1585 | ||
| Grand Prix Taipei 2016 (SOI standard) | starting rating: 1399 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 13 | Lin, Chia-Ching (1556) | Won 2-1 | +211420 |
| 2standard | 79 | Kato, Kazuki (1797) | Won 2-1 | +241444 |
| 3standard | 21 | Tan, Chin Heng (1836) | Lost 0-2 | -111433 |
| 4standard | 235 | Tateno, Tomoaki (1335) | Lost 1-2 | -201413 |
| 5standard | 272 | Huang, Shin Lin (1551) | Won 2-0 | +211434 |
| 6standard | 213 | Komachi, Akinori (1529) | Won 2-1 | +191453 |
| 7standard | 132 | Otsuka, Tomohito (1755) | Lost 0-2 | -121441 |
| 8standard | 186 | Tsai, Tony [TWN] (1518) | Won 2-0 | +191460 |
| 9standard | 161 | Li, He (1616) | Lost 1-2 | -151445 |
| top | average opponent: 1610record: 5-4 | new rating: 1445 | ||
| Grand Prix Utrecht 2015 (MM2 limited) | starting rating: 1408 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 227 | Koenders, Roderik (1507) | Draw 1-1 | +21410 |
| 4sealed | 151 | Draack, Fabian (1485) | Lost 0-2 | -161394 |
| 5sealed | 302 | Dewulf, Mathieu (1499) | Won 2-1 | +191413 |
| 6sealed | 197 | van Dinteren, Kjeld (1600) | Lost 0-2 | -141399 |
| top | average opponent: 1523record: 1-2-1 | new rating: 1399 | ||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 188 | Matsui, Toshinori (1500) | Lost 0-2 | -181482 |
| 2sealed | 349 | Ootaki, Ryo (1429) | Lost 0-2 | -191463 |
| 3sealed | 375 | Hirata, Keisuke (1429) | Lost 0-2 | -191444 |
| 4sealed | 397 | Nanasawa, Ayaka (1444) | Lost 0-2 | -181426 |
| 5sealed | 356 | Takeda, Yasuaki (1426) | Lost 1-2 | -181408 |
| top | average opponent: 1445record: 0-5 | new rating: 1408 | ||