Habata, Issei
Current rating: 1645
Record: 28-19-1
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1629 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 280 | Innes-Taylor, Ian (1576) | Lost 1-2 | -191610 |
| 2standard | 719 | Kawabata, Sho (1430) | Lost 0-2 | -221588 |
| 3standard | 1184 | Terai, Yusuke (1464) | Won 2-0 | +161604 |
| 4standard | 957 | Masada, Isao (1426) | Draw 1-1 | -31601 |
| 5standard | 1075 | Takaishi, Etsushi (1488) | Won 2-0 | +161617 |
| 6standard | 855 | Odagiri, Yousuke (1507) | Won 2-0 | +161633 |
| 7standard | 635 | Hasizume, Shoutarou (1463) | Won 2-1 | +151648 |
| 8standard | 436 | Takahashi, Masaya (1503) | Won 2-1 | +151663 |
| 9standard | 280 | Kageura, Taisuke (1638) | Lost 1-2 | -181645 |
| top | average opponent: 1500record: 5-3-1 | new rating: 1645 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1578 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 993 | Ushita, Masanori (1524) | Won 2-0 | +171595 |
| 2standard | 449 | Mita, Shin'ichiro (1535) | Lost 0-2 | -191576 |
| 3standard | 965 | Fukushima, Hiromi (1516) | Won 2-0 | +161592 |
| 4standard | 848 | Aoi, Masashi (1505) | Won 2-0 | +171609 |
| 5standard | 405 | Willems, Sjoerd (1716) | Lost 0-2 | -161593 |
| 6standard | 773 | Sablan, Ant (1515) | Won 2-0 | +161609 |
| 7standard | 456 | Yamashita, Hiromichi (1447) | Won 2-1 | +151624 |
| 8standard | 235 | Koyama, Yuji (1723) | Won 2-0 | +201644 |
| 9standard | 264 | Ballester, Carlos (1763) | Lost 1-2 | -161628 |
| 10standard | 280 | Kumura, Kazuya (1553) | Won 2-1 | +171645 |
| 11standard | 216 | Sasaki, Yusuke (1736) | Lost 1-2 | -161629 |
| top | average opponent: 1594record: 7-4 | new rating: 1629 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1556 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 845 | Sano, Takumi (1497) | Won 2-0 | +171573 |
| 2sealed | 196 | Sugiyama, Takahiro (1550) | Won 2-1 | +181591 |
| 3sealed | 346 | An, Youngkill (1500) | Won 2-0 | +161607 |
| 4sealed | 214 | Miyazono, Takeshi (1789) | Lost 0-2 | -141593 |
| 5sealed | 305 | Igarashi, Takato (1520) | Won 2-0 | +161609 |
| 6sealed | 175 | Kushibe, Toshiki (1637) | Won 2-0 | +191628 |
| 7sealed | 170 | Saito, Yuki (1508) | Won 2-1 | +161644 |
| 8sealed | 85 | Nisio, Tomoyasu (1688) | Won 2-1 | +181662 |
| 9sealed | 57 | Naide, Kazutaka (1561) | Lost 0-2 | -191643 |
| 10draft | 228 | Ishimaru, Ken (1808) | Lost 0-2 | -151628 |
| 11draft | 192 | Iwasawa, Fumiya (1659) | Lost 1-2 | -181610 |
| 12draft | 257 | Yamazaki, Yuuki (1801) | Lost 0-2 | -141596 |
| 13draft | 363 | Iwaide, Yoshitaka (1600) | Lost 1-2 | -181578 |
| top | average opponent: 1625record: 7-6 | new rating: 1578 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1540 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1299 | Kodera, Yasunori (1566) | Won 2-1 | +181558 |
| 2sealed | 1001 | Takasyo, Kenta (1518) | Won 2-0 | +181576 |
| 3sealed | 897 | Fujino, Masashi (1579) | Lost 0-2 | -181558 |
| 4sealed | 962 | Maruno, Takaaki (1539) | Lost 1-2 | -191539 |
| 5sealed | 1124 | Ooba, Tomohiro (1486) | Won 2-1 | +171556 |
| 6sealed | 972 | Naraya, Takaaki (1519) | Won 2-1 | +181574 |
| 7sealed | 915 | Isayama, Yusuke (1620) | Lost 1-2 | -181556 |
| top | average opponent: 1547record: 4-3 | new rating: 1556 | ||
| Grand Prix Yokohama 2003 (Onslaught block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 9 | Omata, Yuuji (1500) | Won 2-0 | +181518 |
| 2block | 9 | Morita, Katsunobu (1547) | Lost 1-2 | -171501 |
| 3block | 218 | Kawasaki, Yoshimichi (1499) | Won 2-0 | +181519 |
| 4block | 197 | Tajiri, Satoshi (1485) | Won 2-0 | +171536 |
| 5block | 156 | Yamagishi, Yuichi (1737) | Lost 1-2 | -141522 |
| 6block | 192 | Noda, Yasumasa (1520) | Won 2-0 | +181540 |
| 7block | 91 | Sugiura, Kiyohiro (1538) | Lost 0-2 | -191521 |
| 8block | 127 | Takehana, Yuki (1539) | Won 2-0 | +191540 |
| top | average opponent: 1546record: 5-3 | new rating: 1540 | ||