Kobayashi, Hironori
Current rating: 1464
Record: 11-14
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1444 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 147 | Jia, Jie (1561) | Won 2-0 | +201464 |
| 2sealed | 82 | Usami, Koji (1276) | Lost 1-2 | -221442 |
| 3sealed | 584 | Yamazaki, Sumio (1466) | Won 2-0 | +191461 |
| 4sealed | 610 | Kanda, Takuya (1465) | Won 2-0 | +181479 |
| 5sealed | 399 | Imazawa, Junpei (1556) | Lost 0-2 | -171462 |
| 6sealed | 504 | Yanagidate, Ikumi (1514) | Won 2-1 | +191481 |
| 7sealed | 278 | Nozaki, Taiki (1554) | Lost 1-2 | -171464 |
| top | average opponent: 1485record: 4-3 | new rating: 1464 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1427 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 683 | Kent, Jenista (1434) | Won 2-0 | +181445 |
| 2modern | 402 | Lien, Chien-Hung (1664) | Lost 0-2 | -141431 |
| 3modern | 999 | Azuma, Kentaro (1498) | Won 2-0 | +201451 |
| 4modern | 688 | Kirino, Ryohei (1705) | Won 2-0 | +221473 |
| 5modern | 277 | Matsuda, Yuichiro (1532) | Lost 1-2 | -171456 |
| 6modern | 352 | Nitta, Yuki (1621) | Lost 0-2 | -151441 |
| 7modern | 685 | Koyama, Yutaro (1497) | Won 2-0 | +191460 |
| 8modern | 397 | Katou, Shinpei (1535) | Lost 1-2 | -161444 |
| top | average opponent: 1560record: 4-4 | new rating: 1444 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1460 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 353 | Wakatabi, Kazuhiko (1480) | Lost 0-2 | -171443 |
| 2sealed | 605 | Nakayama, Yasuaki (1620) | Lost 1-2 | -151428 |
| 3sealed | 1133 | Suenaga, Hirohisa (1355) | Won 2-1 | +171445 |
| 4sealed | 785 | Suguro, Takuya (1484) | Lost 0-2 | -181427 |
| top | average opponent: 1485record: 1-3 | new rating: 1427 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 880 | Hashizume, Tomohiro (1466) | Lost 1-2 | -191481 |
| 2standard | 954 | Oriba, Ryo (1433) | Won 2-0 | +171498 |
| 3standard | 811 | Tsutazawa, Hiroshi (1463) | Won 2-0 | +181516 |
| 4standard | 636 | Naono, Shuichi (1415) | Lost 0-2 | -201496 |
| 5standard | 999 | Ishiguro, Tetsuya (1432) | Lost 1-2 | -191477 |
| 6standard | 1253 | Misumi, Kyouhei (1562) | Lost 0-2 | -171460 |
| top | average opponent: 1461record: 2-4 | new rating: 1460 | ||