Kobayashi, Akira
Current rating: 1581
Record: 18-18
| Regional Championships Aichi 2023 (pioneer) | starting rating: 1508 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 117 | Sekiya, Daisuke (1456) | Won 2-0 | +171525 |
| 2pioneer | 12 | ishikawa, akira (1520) | Won 2-1 | +181543 |
| 3pioneer | 13 | Nam, Sung Wook (1814) | Lost 1-2 | -131530 |
| 4pioneer | 52 | Yasooka, Shota (2034) | Won 2-1 | +261556 |
| 5pioneer | 15 | yamasaki, kento (1542) | Won 2-1 | +181574 |
| 6pioneer | 18 | Ookura, Haruka (1743) | Won 2-1 | +211595 |
| 7pioneer | 11 | Yoshigoe, Hisamichi (1826) | Lost 1-2 | -141581 |
| 8pioneer | 19 | Naitou, Keisuke (1819) | Won 2-1 | +221603 |
| 9pioneer | 9 | Harane, Kenta (2001) | Lost 0-2 | -111592 |
| 10pioneer | 13 | Usui, Haruki (1846) | Lost 1-2 | -131579 |
| 11pioneer | 19 | Onizuka, Hiroshi (1687) | Lost 0-2 | -161563 |
| 12pioneer | 23 | Ishikawa, Hikaru (1563) | Won 2-0 | +181581 |
| top | average opponent: 1737record: 7-5 | new rating: 1581 | ||
| Regional Championships Chiba 2023 (pioneer) | starting rating: 1511 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 63 | Oohashi, Yoshihiro (1541) | Won 2-1 | +191530 |
| 2pioneer | 56 | JANG, HYUNDEOK (1571) | Won 2-0 | +191549 |
| 3pioneer | 4 | Miyashita, Shota (1587) | Lost 1-2 | -181531 |
| 4pioneer | 55 | Yoshigoe, Hisamichi (1681) | Lost 0-2 | -151516 |
| 5pioneer | 53 | Wada, Yuki (1919) | Lost 1-2 | -111505 |
| 6pioneer | 66 | Nishimura, Hiroshi (1490) | Won 2-1 | +181523 |
| 7pioneer | 64 | Yamada, Kazuki (1694) | Lost 0-2 | -151508 |
| top | average opponent: 1640record: 3-4 | new rating: 1508 | ||
| Regional Championships Aichi 2022 (pioneer) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 80 | Nakamura, Koki (1445) | Won 2-0 | +171499 |
| 2pioneer | 47 | Otsuka, Tomohito (1681) | Won 2-0 | +211520 |
| 3pioneer | 21 | Uemoto, Takahiro (1746) | Won 2-0 | +221542 |
| 4pioneer | 11 | asano, shun (1564) | Lost 0-2 | -171525 |
| 5pioneer | 19 | Ozawa, Takeshi (1898) | Won 2-1 | +241549 |
| 6pioneer | 12 | Satou, Yoshinobu (1517) | Won 2-0 | +181567 |
| 7pioneer | 7 | Tsubouchi, Tomoya (1957) | Lost 0-2 | -121555 |
| 8pioneer | 12 | Ikeda, Hidenari (1459) | Lost 0-2 | -191536 |
| 9pioneer | 18 | Ishiwata, Kouichi (1622) | Lost 0-2 | -171519 |
| 10pioneer | 24 | Hamaguchi, Masakuni (1844) | Lost 1-2 | -121507 |
| 11pioneer | 28 | Matsumoto, Tomohiro (1560) | Lost 0-2 | -171490 |
| 12pioneer | 26 | Cho, Jae Seok (1672) | Won 2-0 | +211511 |
| top | average opponent: 1664record: 6-6 | new rating: 1511 | ||
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 6 | Ikeda, Atsuo (1500) | Won 2-0 | +181518 |
| 2standard | 360 | Noguchi, Tsubasa (1502) | Lost 1-2 | -181500 |
| 3standard | 719 | Tazawa, Takatoshi (1346) | Lost 1-2 | -211479 |
| 4standard | 665 | Hasaba, Kenji (1358) | Won 2-0 | +161495 |
| 5standard | 449 | Liu, Yuchen (1771) | Lost 1-2 | -131482 |
| top | average opponent: 1496record: 2-3 | new rating: 1482 | ||