Kobayashi, Kota
Current rating: 1466
Record: 6-8
| Grand Prix Yokohama 2004 (COK limited) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 52 | Koyama, Shohei (1506) | Lost 0-2 | -181502 |
| 2sealed | 251 | Sakai, Yasuki (1613) | Won 2-0 | +201522 |
| 3sealed | 173 | Haraldsson, Hedinn (1501) | Lost 1-2 | -191503 |
| 4sealed | 221 | Natsume, Takuya (1498) | Lost 1-2 | -181485 |
| 5sealed | 237 | Yamano, Tatsuto (1390) | Lost 0-2 | -191466 |
| average opponent: 1501record: 1-4 | new rating: 1466 | |||
| Grand Prix Yokohama 2003 (Onslaught block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 105 | Kondo, Takahito (1472) | Won 2-1 | +181518 |
| 2block | 69 | Ichikawa, Hitoshi (1518) | Won 2-0 | +181536 |
| 3block | 76 | Ebitani, Keisuke (1518) | Won 2-1 | +171553 |
| 4block | 62 | Kumagai, Shinichi (1714) | Lost 1-2 | -151538 |
| 5block | 128 | Sakuma, Toshimitsu (1522) | Lost 1-2 | -181520 |
| 6block | 139 | Ichikawa, Tatsuya (1518) | Won 2-1 | +181538 |
| 7block | 141 | Yasuoka, Hideki (1541) | Won 2-1 | +181556 |
| 8block | 71 | Yokoi, Masaki (1582) | Lost 1-2 | -181538 |
| 9block | 110 | Fujihira, Taro (1525) | Lost 0-2 | -181520 |
| average opponent: 1546record: 5-4 | new rating: 1520 | |||