Sekine, Morio
Current rating: 1614
| Grand Prix Yokohama 2004 (COK limited) | starting rating: 1632 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 135 | Mouri, Takemasa (1674) | Lost 0-2 | -171615 |
| 2sealed | 247 | Minami, Masashi (1633) | Won 2-1 | +181633 |
| 3sealed | 131 | Chijimi, Keiichi (1569) | Lost 1-2 | -191614 |
| top | average opponent: 1625record: 1-2 | new rating: 1614 | ||
| Grand Prix Yokohama 2003 (Onslaught block) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 199 | Ichinose, Takashi (1500) | Won 2-0 | +171520 |
| 2block | 142 | Ando, Koyo (1518) | Won 2-0 | +181538 |
| 3block | 124 | Yaoita, Akihiro (1540) | Lost 1-2 | -181520 |
| 4block | 211 | Kaji, Tomohiro (1640) | Draw 1-1 | +31523 |
| 5block | 174 | Sekiguchi, Yutaka (1501) | Won 2-0 | +171540 |
| 6block | 111 | Imamizo, Hideaki (1502) | Won 2-0 | +181558 |
| 7block | 66 | Endou, Yuusuke (1559) | Draw 1-1 | 01558 |
| 8block | 112 | Satou, Tomoya (1542) | Won 2-0 | +171575 |
| 9block | 59 | Someya, Yu (1613) | Won 2-0 | +191594 |
| 10block | 39 | Mitamura, Kazuya (1588) | Won 2-0 | +181612 |
| 11block | 25 | Okada, Kou (1681) | Won 2-0 | +191631 |
| 12block | 15 | Ishimaru, Ken (1600) | Won 2-1 | +181649 |
| 13block | 9 | Maehata, Yasuhito (1643) | Won 2-0 | +171666 |
| 14block | 5 | Nomura, Eiji (1769) | Draw 1-1 | +21668 |
| 15block | 9 | Osaka, Yusuke (1640) | Lost 1-2 | -181650 |
| 16block | 17 | Ueda, Katsuya (1651) | Lost 0-2 | -181632 |
| top | average opponent: 1593record: 10-3-3 | new rating: 1632 | ||
| Grand Prix Shizuoka 2001 (ODY limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 65 | Yamada, Sintarou (1611) | Draw 1-1 | +21502 |
| 2sealed | 196 | Kimu, Chunho (1500) | Won 2-0 | +181520 |
| 3sealed | 109 | Wakuri, Akira (1572) | Lost 0-2 | -171503 |
| 4sealed | 204 | Nadachi, Shinji (1481) | Draw 1-1 | 01503 |
| top | average opponent: 1541record: 1-1-2 | new rating: 1503 | ||