Wakatabi, Kazuhiko
Current rating: 1428
Record: 3-7
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1480 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 353 | Kobayashi, Hironori (1460) | Won 2-0 | +171497 |
| 2sealed | 528 | Ogawa, Ryota (1619) | Lost 0-2 | -151482 |
| 3sealed | 938 | Arakaki, Yuuichi (1482) | Lost 1-2 | -181464 |
| 4sealed | 942 | Iwabuchi, Tomohiro (1479) | Lost 0-2 | -181446 |
| 5sealed | 979 | Kuriyama, Takuya (1437) | Lost 0-2 | -181428 |
| average opponent: 1496record: 1-4 | new rating: 1428 | |||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 21 | Watanabe, Kanehiro (1447) | Lost 1-2 | -191481 |
| 2sealed | 376 | Wanibuchi, Kouji (1485) | Won 2-1 | +181499 |
| 3sealed | 343 | Kondo, Hirotsugu (1443) | Lost 1-2 | -191480 |
| 4sealed | 389 | Kanaishi, Ken (1477) | Won 2-1 | +181498 |
| 5sealed | 312 | Mikami, Noriaki (1488) | Lost 1-2 | -181480 |
| average opponent: 1468record: 2-3 | new rating: 1480 | |||