Kobayashi, Chiaki
Current rating: 1658
Record: 28-18-2
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1687 | |||
| round | table | opponent (rating) | result | Δrating |
| 2pioneer | 126 | Nagata, Taiga (1350) | Won 2-1 | +121699 |
| 3pioneer | 218 | Mori, Tomoki (1556) | Draw 1-1 | -21697 |
| 4pioneer | 207 | Itou, Motoki (1665) | Lost 0-2 | -191678 |
| 5pioneer | 391 | Saijo, Hayato (1566) | Lost 0-2 | -201658 |
| top | average opponent: 1534record: 1-2-1 | new rating: 1658 | ||
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1671 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 382 | Suzuki, Tomohiro (1575) | Won 2-0 | +161687 |
| 3standard | 408 | Tsuruoka, Shouta (1568) | Won 2-1 | +161703 |
| 4standard | 61 | Hayakawa, Sho (1615) | Lost 0-2 | -191684 |
| 5standard | 139 | Shiina, Kento (1355) | Lost 0-2 | -241660 |
| 6standard | 417 | Kato, Yoshito (1504) | Won 2-1 | +151675 |
| 7standard | 348 | Nakashima, Atsushi (1899) | Won 2-0 | +221697 |
| 8standard | 152 | Baba, Yukihiro (1678) | Won 2-0 | +181715 |
| 9standard | 123 | Ito, Kenta (1617) | Lost 0-2 | -201695 |
| 10standard | 143 | Nanba, Naoya (1917) | Won 2-0 | +221717 |
| 11standard | 90 | Tokuda, Taihei (1576) | Lost 1-2 | -211696 |
| 12standard | 138 | Kajiwara, Tomoki (1472) | Lost 1-2 | -221674 |
| 13standard | 135 | Hirano, Mikita (1667) | Lost 0-2 | -181656 |
| 14standard | 123 | Akamine, Yuta (1538) | Won 2-1 | +161672 |
| 15standard | 111 | Nagao, Taku (1519) | Won 2-1 | +151687 |
| top | average opponent: 1607record: 8-6 | new rating: 1687 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1565 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 198 | Kojima, Toshihiro (1265) | Won 2-0 | +131578 |
| 2standard | 290 | Shimizu, Takeo (1375) | Won 2-1 | +141592 |
| 3standard | 476 | Shiina, Daisuke (1438) | Won 2-1 | +151607 |
| 4standard | 199 | Narita, Chisato (1620) | Won 2-1 | +181625 |
| 5standard | 19 | Nishiura, Ryosuke (1729) | Lost 1-2 | -161609 |
| 6standard | 151 | Uno, Yuta (1516) | Won 2-0 | +171626 |
| 7standard | 145 | Yada, Kazuki (1946) | Won 2-0 | +231649 |
| 8standard | 98 | Takagi, Yui (1797) | Lost 1-2 | -151634 |
| 9standard | 166 | Nozaki, Taiki (1572) | Won 2-1 | +171651 |
| 10standard | 100 | Matsumoto, Ryohei (1476) | Won 2-1 | +151666 |
| 11standard | 42 | Hirosawa, Yuki (1510) | Won 2-0 | +151681 |
| 12standard | 39 | Ikawa, Yoshihiko (2188) | Won 2-0 | +261707 |
| 13standard | 24 | Hori, Masataka (1796) | Lost 0-2 | -161691 |
| 14standard | 25 | Yagi, Wataru (1671) | Lost 1-2 | -181673 |
| 15standard | 59 | Tanabe, Takumi (1589) | Draw 1-1 | -21671 |
| top | average opponent: 1632record: 10-4-1 | new rating: 1671 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 565 | Takashima, Daisuke (1571) | Won 2-1 | +191519 |
| 2standard | 249 | Kondo, Shogo (1568) | Won 2-1 | +191538 |
| 3standard | 310 | Horie, Hiroshi (1579) | Won 2-0 | +191557 |
| 4standard | 376 | Ishino, Takuya (1462) | Won 2-1 | +161573 |
| 5standard | 245 | Kamimura, Fumihiro (1729) | Won 2-0 | +211594 |
| 6standard | 219 | Tabei, Hirotomo (1557) | Won 2-0 | +171611 |
| 7standard | 206 | Naganawa, Yuuki (1585) | Lost 0-2 | -181593 |
| 8standard | 204 | Yamamoto, Masafumi (1772) | Lost 1-2 | -151578 |
| 9standard | 134 | Fujimoto, Shun (1632) | Won 2-1 | +191597 |
| 10standard | 78 | Ichikawa, Norikazu (1674) | Lost 1-2 | -171580 |
| 11standard | 146 | Kojima, Tatuya (1771) | Lost 0-2 | -141566 |
| 12standard | 128 | Kato, Naoya (1412) | Won 2-1 | +151581 |
| 13standard | 61 | Matsuda, Hideyuki (1607) | Won 2-1 | +191600 |
| 14standard | 100 | Hiroi, Genki (1716) | Lost 0-2 | -161584 |
| 15standard | 96 | Kojima, Yoshifumi (1538) | Lost 0-2 | -191565 |
| top | average opponent: 1612record: 9-6 | new rating: 1565 | ||