Kobayashi, Junya
Current rating: 1435
Record: 12-16
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1488 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 483 | Shimono, Tetsuro (1507) | Lost 1-2 | -171471 |
| 2sealed | 671 | Arakaki, Gen (1428) | Lost 0-2 | -191452 |
| 3sealed | 1094 | Fujimoto, Kenta (1514) | Lost 1-2 | -171435 |
| top | average opponent: 1483record: 0-3 | new rating: 1435 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1452 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 386 | Naka, Yuuji (1500) | Lost 1-2 | -171435 |
| 2modern | 674 | Komine, Syunsuke (1413) | Won 2-0 | +171452 |
| 3modern | 565 | Homma, Naoto (1506) | Won 2-0 | +191471 |
| 4modern | 487 | Takakura, Shinichirou (1418) | Lost 0-2 | -191452 |
| 5modern | 853 | Yanagihara, Tomoki (1378) | Lost 0-2 | -191433 |
| 6modern | 779 | Yamazaki, Shuhei (1417) | Won 2-1 | +181451 |
| 7modern | 689 | Kobayashi, Yuichiro (1499) | Won 2-0 | +191470 |
| 8modern | 502 | Murakami, Taku 3010 (1520) | Won 2-0 | +181488 |
| top | average opponent: 1456record: 5-3 | new rating: 1488 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1460 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 762 | Mori, Hisayuki (1471) | Lost 1-2 | -181442 |
| 2sealed | 660 | Takano, Masahiro (1538) | Won 2-0 | +201462 |
| 3sealed | 882 | Fujimori, Masayoshi (1607) | Won 2-0 | +201482 |
| 4sealed | 720 | Okuno, Ryohei (1598) | Lost 1-2 | -151467 |
| 5sealed | 910 | Moriya, Daisuke (1648) | Lost 1-2 | -151452 |
| top | average opponent: 1572record: 2-3 | new rating: 1452 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 1049 | Nagashima, Toru (1469) | Lost 1-2 | -191483 |
| 2standard | 1262 | Eda, Taichirou (1482) | Lost 0-2 | -181465 |
| 3standard | 1626 | Takiguchi, Itsuki (1443) | Lost 1-2 | -181447 |
| 4standard | 1541 | Furihara, Kazuki (1264) | Lost 1-2 | -221425 |
| 5standard | 1540 | Konishi, Eigo (1411) | Won 2-1 | +181443 |
| 6standard | 1402 | Kiyohara, Yuji (1374) | Won 2-0 | +171460 |
| top | average opponent: 1407record: 2-4 | new rating: 1460 | ||
| Grand Prix Kobe 2011 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 139 | Iwazaki, Yuuta (1500) | Won 2-0 | +181518 |
| 2extended | 133 | Ooki, Norihiro (1518) | Lost 1-2 | -181500 |
| 3extended | 126 | Kinoshita, Tomohiro (1532) | Won 2-0 | +191519 |
| 4extended | 158 | Boku, Takashi (1392) | Won 2-1 | +151534 |
| 5extended | 78 | Fujihira, Kohei (1533) | Lost 1-2 | -181516 |
| 6extended | 113 | Yamashita, Hidetoshi (1706) | Lost 0-2 | -141502 |
| top | average opponent: 1530record: 3-3 | new rating: 1502 | ||