K., Koudai
Current rating: 1651
Record: 12-4
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 785 | Nakano, Shinji (1500) | Lost 0-2 | -181482 |
| 2sealed | 1094 | Kase, Tomohiro (1482) | Won 2-0 | +181500 |
| 3sealed | 893 | Sakuma, Toshimitsu (1664) | Won 2-0 | +211521 |
| 4sealed | 904 | Ozaki, Ryosuke (1521) | Won 2-0 | +181539 |
| 5sealed | 792 | Tsuchiya, Masanori (1541) | Won 2-0 | +181557 |
| 6sealed | 757 | Kiyonaga, Sho (1491) | Lost 0-2 | -191538 |
| 7sealed | 842 | Takasawa, Yuuki (1542) | Won 2-0 | +181556 |
| 8sealed | 893 | Tazawa, Kazuho (1492) | Won 2-1 | +171573 |
| 9sealed | 865 | Ichinohe, Hirona (1587) | Won 2-0 | +181591 |
| 10sealed | 121 | Cheng, Tung-Yi (1781) | Won 2-1 | +211612 |
| 11sealed | 46 | Hida, Yoshinori (1620) | Lost 1-2 | -171595 |
| 12draft | 23 | Kajitani, Tsuyoshi (1595) | Won 2-0 | +181613 |
| 13draft | 14 | Matsuo, Keita (1480) | Won 2-0 | +151628 |
| 14draft | 84 | Murae, Ryuji (1751) | Lost 1-2 | -161612 |
| 15draft | 32 | Yan, Yan (1604) | Won 2-1 | +181630 |
| 16draft | 79 | Yoon, SooHan (1771) | Won 2-0 | +211651 |
| 17draft | 38 | Hashimoto, Yuu (1814) | ID | 01651 |
| average opponent: 1602record: 12-4-1 | new rating: 1651 | |||