Kobayashi, Hiroya
Current rating: 1554
Record: 27-24
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1600 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 225 | Akisato, Ryou (1453) | Lost 1-2 | -201580 |
| 2standard | 554 | Nakayama, Tomoki (1437) | Lost 1-2 | -211559 |
| 3standard | 818 | Saga, Ryosuke (1463) | Lost 1-2 | -201539 |
| 4standard | 824 | Saito, Eisuke (1377) | Won 2-0 | +151554 |
| top | average opponent: 1433record: 1-3 | new rating: 1554 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1572 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 15 | Ikebata, Yusuke (1389) | Won 2-1 | +141586 |
| 2standard | 119 | Yoshikawa, Yuuki (1561) | Won 2-1 | +181604 |
| 3standard | 142 | Naitou, Yohei (1565) | Lost 0-2 | -191585 |
| 4standard | 296 | Kai, Masatoshi (1412) | Lost 0-2 | -211564 |
| 5standard | 666 | Neki, Daisuke (1473) | Won 2-1 | +171581 |
| 6standard | 304 | Kawamata, Daisuke (1656) | Won 2-1 | +191600 |
| 7standard | 258 | Nishiyama, Naoki (1620) | Won 2-1 | +181618 |
| 8standard | 131 | Adachi, Yoshikazu (1618) | Lost 0-2 | -181600 |
| top | average opponent: 1537record: 5-3 | new rating: 1600 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1508 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 380 | Fukazawa, Tooru (1459) | Won 2-0 | +171525 |
| 2standard | 292 | Fujita, Kenshiro (1536) | Won 2-0 | +181543 |
| 3standard | 252 | Kamikawa, Takuya (1524) | Won 2-0 | +181561 |
| 4standard | 240 | Koike, Junya (1469) | Won 2-1 | +161577 |
| 5standard | 208 | Oku, Daisaku (1557) | Lost 1-2 | -181559 |
| 6standard | 339 | Tsukada, Hiroshi (1478) | Won 2-1 | +161575 |
| 7standard | 211 | Mikami, Yoshirou (1860) | Lost 0-2 | -121563 |
| 8standard | 334 | Nagami, Takahiro (1585) | Won 2-1 | +181581 |
| 9standard | 161 | Yao, Shimeng (1809) | Won 2-1 | +221603 |
| 10standard | 103 | Gotou, Hiroyuki (1795) | Lost 0-2 | -151588 |
| 11standard | 95 | Matsui, Takamasa (1583) | Lost 0-2 | -181570 |
| 12standard | 118 | Oooka, Daiji (1552) | Won 2-1 | +181588 |
| 13standard | 105 | Moriya, Daisuke (1629) | Lost 0-2 | -171571 |
| 14standard | 113 | Yoshimura, Wataru (1471) | Won 2-0 | +161587 |
| 15standard | 109 | Naide, Kazutaka (1743) | Lost 1-2 | -151572 |
| top | average opponent: 1603record: 9-6 | new rating: 1572 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1526 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 717 | Kimura, Tatsuhiro (1447) | Won 2-1 | +161542 |
| 2standard | 332 | Chou, Takayuki (1689) | Lost 1-2 | -151527 |
| 3standard | 698 | Itou, Kenshirou (1763) | Won 2-0 | +221549 |
| 4standard | 583 | Takayama, Kan (1617) | Lost 0-2 | -161533 |
| 5standard | 830 | Suzuki, Takuya (1440) | Lost 0-2 | -201513 |
| 6standard | 1006 | Inoue, Reiichi (1485) | Won 2-0 | +171530 |
| 7standard | 787 | Iwasaki, Daisuke (1438) | Lost 0-2 | -191511 |
| 8standard | 799 | Sasaki, Yusuke 4501 (1557) | Lost 1-2 | -181493 |
| 9standard | 769 | Shibayama, Hayato (1301) | Won 2-1 | +151508 |
| top | average opponent: 1526record: 4-5 | new rating: 1508 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 238 | Umebara, Keita (1500) | Won 2-1 | +181518 |
| 2standard | 55 | Kevis, Jeremy (1663) | Won 2-1 | +211539 |
| 3standard | 724 | Fukushi, Kyouhei (1589) | Won 2-1 | +191558 |
| 4standard | 161 | Yoshikawa, Takuma (1495) | Won 2-0 | +161574 |
| 5standard | 111 | Matsushita, Takahiro (1672) | Won 2-1 | +201594 |
| 6standard | 70 | Shibata, Masataka (1517) | Won 2-1 | +171611 |
| 7standard | 23 | Maruyama, Koji (1617) | Lost 0-2 | -181593 |
| 8standard | 50 | Nakanishi, Yutaka (1560) | Won 2-1 | +171610 |
| 9standard | 69 | Sukegawa, Hayato (1581) | Won 2-1 | +181628 |
| 10standard | 27 | Amayasu, Kazunori (1527) | Lost 1-2 | -201608 |
| 11standard | 109 | Park, Bi-O (1694) | Lost 1-2 | -161592 |
| 12standard | 160 | Kumagai, Masahiro (1608) | Lost 0-2 | -181574 |
| 13standard | 249 | Ishii, Hiroyuki (1649) | Lost 1-2 | -171557 |
| 14standard | 265 | Sugimura, Yoshiyasu (1675) | Lost 0-2 | -161541 |
| 15standard | 249 | Takeda, Hiroki (1679) | Lost 0-2 | -151526 |
| top | average opponent: 1602record: 8-7 | new rating: 1526 | ||