Kojima, Yuki
Current rating: 1488
Record: 5-6
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1504 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 424 | Sasaki, Ken (1541) | Won 2-1 | +181522 |
| 2sealed | 572 | Miyake, Keigo (1496) | Lost 0-2 | -181504 |
| 3sealed | 891 | Yoshihara, Shouta (1592) | Won 2-1 | +201524 |
| 4sealed | 472 | Tasugi, Keigo (1430) | Lost 0-2 | -201504 |
| 5sealed | 623 | Sasaki, Shou (1596) | Lost 1-2 | -161488 |
| average opponent: 1531record: 2-3 | new rating: 1488 | |||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 2264 | Kuwada, Tooru (1500) | Won 2-0 | +181518 |
| 2sealed | 2117 | Tsuda, Tomohiro (1503) | Won 2-1 | +181536 |
| 3sealed | 2088 | Sugimoto, Yuta (1467) | Won 2-1 | +161552 |
| 4sealed | 2012 | Dezani, Jeremy (1792) | Lost 0-2 | -131539 |
| 5sealed | 2131 | Nozaki, Issei (1567) | Lost 0-2 | -181521 |
| 6sealed | 2253 | Kondo, Shohei (1549) | Lost 0-2 | -171504 |
| average opponent: 1563record: 3-3 | new rating: 1504 | |||