Kobayashi, Hiroki
Current rating: 1530
Record: 17-15
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1553 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 66 | Kato, Takuya (1482) | Lost 0-2 | -191534 |
| 2standard | 612 | Nakajou, Naoto (1461) | Won 2-0 | +161550 |
| 3standard | 558 | Asao, Kazuki (1441) | Won 2-0 | +161566 |
| 4standard | 608 | Sato, Takatoshi (1812) | Won 2-0 | +231589 |
| 5standard | 280 | Usuzawa, Yuuki (1549) | Lost 0-2 | -191570 |
| 6standard | 357 | Kurokawa, Yuuki (1441) | Lost 0-2 | -201550 |
| 7standard | 583 | Hirano, Sigenobu (1433) | Lost 0-2 | -201530 |
| top | average opponent: 1517record: 3-4 | new rating: 1530 | ||
| Grand Prix Yokohama 2010 (extended) | starting rating: 1541 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 151 | Okano, Hiroki (1598) | Won 2-0 | +191560 |
| 2extended | 95 | Kaizu, Hareta (1518) | Won 2-0 | +171577 |
| 3extended | 90 | Izumi, Masaru (1559) | Lost 0-2 | -181559 |
| 4extended | 243 | Watanabe, Tetsuo (1450) | Won 2-1 | +161575 |
| 5extended | 93 | Takahashi, Taro (1498) | Lost 0-2 | -191556 |
| 6extended | 262 | Motoi, Kenichi (1522) | Won 2-0 | +171573 |
| 7extended | 188 | Kinoshita, Atsushi (1467) | Lost 1-2 | -201553 |
| top | average opponent: 1516record: 4-3 | new rating: 1553 | ||
| Grand Prix Niigata 2009 (M10 limited) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 176 | Mochiki, Kazuto (1542) | Won 2-0 | +181538 |
| 2sealed | 10 | Kobashi, Motoki (1533) | Won 2-0 | +181556 |
| 3sealed | 2 | Shiota, Akihiko (1520) | Won 2-0 | +181574 |
| 4sealed | 8 | Kadooka, Toshiyuki (1749) | Lost 0-2 | -151559 |
| 5sealed | 109 | Kurihara, Tomo (1581) | Lost 0-2 | -181541 |
| top | average opponent: 1585record: 3-2 | new rating: 1541 | ||
| Grand Prix Shizuoka 2008 (MOR standard) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 202 | Takahashi, Teo (1518) | Lost 1-2 | -181501 |
| 3standard | 264 | Torigoe, Seitaro (1554) | Won 2-0 | +191520 |
| 4standard | 114 | Murata, Daisuke (1524) | Lost 1-2 | -181502 |
| 5standard | 289 | Suzuki, Taiki (1502) | Won 2-0 | +181520 |
| 6standard | 162 | Hashimoto, Yuu (Tokyo) (1492) | Won 2-0 | +181538 |
| 7standard | 162 | Kawanishi, Akio (1537) | Lost 0-2 | -181520 |
| top | average opponent: 1521record: 3-3 | new rating: 1520 | ||
| Grand Prix Sendai 2004 (DST limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 171 | Taketou, Kiyoshi (1445) | Won 2-0 | +171517 |
| 2sealed | 79 | Imai, Takashi (1536) | Lost 1-2 | -181499 |
| 3sealed | 113 | Matsushima, Naoki (1506) | Won 2-0 | +181517 |
| 4sealed | 64 | Ishiduka, Hazime (1486) | Won 2-0 | +181535 |
| 5sealed | 65 | Okada, Hiroaki (1586) | Won 2-0 | +191554 |
| 6sealed | 39 | Tomita, Shuntarou (1539) | Lost 1-2 | -181536 |
| 7sealed | 87 | Oomori, Kazuki (1637) | Lost 1-2 | -171519 |
| top | average opponent: 1534record: 4-3 | new rating: 1519 | ||