Kobayashi, Jun (Ichika
Current rating: 1561
Record: 8-6
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 160 | Tsutsumi, Shuuhei (1536) | Won 2-0 | +191519 |
| 4sealed | 99 | Shiraishi, Makoto (1523) | Won 2-1 | +181537 |
| 5sealed | 16 | Nakashima, Hajime (1682) | Won 2-0 | +201557 |
| 6sealed | 16 | Shenhar, Shahar (2082) | Lost 0-2 | -91548 |
| 7sealed | 31 | Bandou, Junichirou (1743) | Lost 1-2 | -141534 |
| 8sealed | 216 | Hori, Masayuki (1562) | Won 2-1 | +181552 |
| 9sealed | 221 | Satou, Chika (1586) | Won 2-1 | +191571 |
| 10sealed | 109 | Watanabe, Yasunari (1593) | Lost 1-2 | -181553 |
| 11sealed | 118 | Hasegawa, Takashi (1585) | Won 2-1 | +191572 |
| 12draft | 124 | Wada, Hiroya (1622) | Lost 0-2 | -171555 |
| 13draft | 23 | Tsumura, Kenji (1862) | Lost 0-2 | -131542 |
| 14draft | 27 | Ikeda, Yoshio (1552) | Lost 1-2 | -181524 |
| 15draft | 15 | Satake, Yukihiro (1664) | Won 2-1 | +211545 |
| 17draft | 80 | Aida, Kazuki (1439) | Won 2-1 | +161561 |
| average opponent: 1645record: 8-6 | new rating: 1561 | |||