Kobayashi, Hiroyuki
Current rating: 1642
| Grand Prix Chiba 2016 (legacy) | starting rating: 1714 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 66 | Sashida, Tomoro (1608) | Lost 1-2 | -201694 |
| 2legacy | 835 | Tsutazawa, Hiroshi (1450) | Lost 1-2 | -221672 |
| 3legacy | 1108 | Ishiduka, Katuya (1450) | Won 2-0 | +141686 |
| 4legacy | 929 | Kamimura, Fumihiro (1567) | Lost 1-2 | -211665 |
| 5legacy | 1012 | Ando, Masanori (1357) | Lost 1-2 | -231642 |
| top | average opponent: 1486record: 1-4 | new rating: 1642 | ||
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1628 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 115 | Kanaike, Hiroyuki (1539) | Won 2-0 | +161644 |
| 4standard | 28 | Takeshita, Masatoshi (1559) | Won 2-0 | +161660 |
| 5standard | 5 | Sakashita, Yoshiyuki (1574) | Won 2-1 | +171677 |
| 6standard | 16 | Yanagihara, Hiroki (1556) | Won 2-1 | +161693 |
| 7standard | 11 | Shiki, Kazumasa (1966) | Won 2-0 | +231716 |
| 8standard | 5 | Fujitsuka, Shougo (1679) | Won 2-0 | +171733 |
| 9standard | 2 | Okamoto, Hiroki (1659) | Won 2-0 | +171750 |
| 10standard | 64 | Takeshita, Toru (1601) | Lost 1-2 | -211729 |
| 11standard | 7 | Mihara, Makihito (1848) | Lost 1-2 | -161713 |
| 12standard | 58 | Yokoi, Masaki (1647) | Lost 0-2 | -191694 |
| 13standard | 8 | Asahara, Akira (1909) | Lost 0-2 | -141680 |
| 14standard | 29 | Tsuchiya, Heinrich (1651) | Won 2-1 | +171697 |
| 15standard | 8 | Ushie, Yuuta (1630) | Won 2-1 | +171714 |
| top | average opponent: 1678record: 9-4 | new rating: 1714 | ||
| Grand Prix Yokohama 2003 (Onslaught block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 192 | Soma, Tetsuya (1497) | Won 2-1 | +181518 |
| 3block | 139 | Krejsa, Tomas (1639) | Draw 1-1 | +21520 |
| 4block | 96 | Ando, Reiji (1579) | Lost 1-2 | -171503 |
| 5block | 172 | Satou, Tomoya (1506) | Lost 1-2 | -181485 |
| 6block | 234 | Iitoi, Fumiaki (1503) | Won 2-0 | +191504 |
| 7block | 174 | Ikedo, Masakazu (1573) | Won 2-1 | +191523 |
| 8block | 115 | Ikeda, Tsuyoshi (1727) | Won 2-1 | +221545 |
| 9block | 65 | Hirano, Kengo (1563) | Won 2-1 | +181563 |
| 10block | 55 | Koura, Masahiro (1746) | Won 2-0 | +211584 |
| 11block | 36 | Tsumura, Kenji (1625) | Won 2-0 | +191603 |
| 12block | 17 | Shimura, Ichirou (1710) | Won 2-0 | +201623 |
| 13block | 10 | Douyama, Tsuyoshi (1833) | Lost 1-2 | -141609 |
| 14block | 21 | Miyauchi, Makoto (1612) | Lost 1-2 | -181591 |
| 15block | 38 | Kito, Takeshi (1586) | Won 2-1 | +181609 |
| 16block | 24 | Yokosuka, Tomohiro (1664) | Won 2-1 | +191628 |
| top | average opponent: 1624record: 10-4-1 | new rating: 1628 | ||