Matsukawa, Kentarou
Current rating: 1624
Record: 13-8
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1486 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 291 | Ohno, Junki (1549) | Won 2-1 | +191505 |
| 3sealed | 211 | Takaya, Kensuke (1693) | Lost 0-2 | -151490 |
| 4sealed | 756 | Harashima, Kenichi (1588) | Won 2-0 | +201510 |
| 5sealed | 364 | Takahashi, Taro (1599) | Won 2-0 | +201530 |
| 6sealed | 188 | Uchikawa, Fumitaka (1652) | Won 2-1 | +201550 |
| 7sealed | 176 | Fujiya, Takahiro (1602) | Won 2-1 | +191569 |
| 8sealed | 84 | Hamada, Yuusai (1572) | Won 2-1 | +181587 |
| 9sealed | 42 | Furusato, Hiroshi (1564) | Won 2-0 | +181605 |
| 10draft | 8 | Mizutani, Yosuke (1863) | Won 2-1 | +221627 |
| 11draft | 8 | Maruyama, Masaaki (1775) | Won 2-1 | +211648 |
| 12draft | 8 | Sekimoto, Kandai (1908) | Lost 0-2 | -141634 |
| 13draft | 6 | Ma, Yiyuan (1755) | Won 2-1 | +211655 |
| 14draft | 123 | Ishizaki, Yoshiki (1797) | Lost 0-2 | -161639 |
| 15draft | 102 | Soga, Junya (1772) | Lost 1-2 | -151624 |
| average opponent: 1692record: 10-4 | new rating: 1624 | |||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 87 | Kamimura, Fumihiro (1702) | Won 2-0 | +221522 |
| 3sealed | 199 | Wada, Yusuke (1516) | Lost 1-2 | -181504 |
| 4sealed | 492 | Ma, Junjie (1428) | Won 2-0 | +161520 |
| 5sealed | 411 | Yamada, Nobuhiro (1384) | Lost 0-2 | -201500 |
| 6sealed | 369 | Suzuki, Akira3942 (1483) | Won 2-0 | +171517 |
| 7sealed | 418 | Kanno, Atsushi (1640) | Lost 0-2 | -151502 |
| 8sealed | 390 | Itou, Takanori (1622) | Lost 1-2 | -161486 |
| average opponent: 1539record: 3-4 | new rating: 1486 | |||