Sakurai, Wataru
Current rating: 1473
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1488 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 196 | Jindalertudomdee, Jira (1447) | Lost 0-2 | -181470 |
| 2sealed | 799 | Aoki, Hiroshi (1459) | Won 2-1 | +171487 |
| 3sealed | 820 | Maruyama, Koji (1559) | Lost 1-2 | -161471 |
| 4sealed | 858 | Ichi, Kenji (1451) | Won 2-0 | +171488 |
| 5sealed | 607 | Maruya, Takashi (1634) | Lost 0-2 | -151473 |
| top | average opponent: 1510record: 2-3 | new rating: 1473 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1488 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 214 | Shimomoto, Manabu (1500) | Won 2-1 | +181506 |
| 2sealed | 155 | Okamoto, Satoshi (1551) | Lost 0-2 | -171489 |
| 3sealed | 220 | Nogimura, Ryo (1392) | Won 2-0 | +161505 |
| 4sealed | 180 | Yamamoto, Hirohito (1502) | Won 2-1 | +181523 |
| 5sealed | 201 | Jitsukawa, Naofumi (1557) | Lost 1-2 | -171506 |
| 6sealed | 169 | Sekiguchi, Ichiki (1540) | Lost 1-2 | -181488 |
| top | average opponent: 1507record: 3-3 | new rating: 1488 | ||
| Grand Prix Niigata 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 79 | Miura, Seitarou (1556) | Won 2-0 | +191519 |
| 2sealed | 96 | Shimizu, Kyouji (1501) | Lost 1-2 | -181501 |
| 3sealed | 191 | Naka, Yoshihiro (1589) | Lost 1-2 | -171484 |
| 4sealed | 239 | Kumoura, Daisuke (1689) | Lost 1-2 | -141470 |
| 5sealed | 254 | Watanabe, Koji (1464) | Won 2-0 | +181488 |
| top | average opponent: 1560record: 2-3 | new rating: 1488 | ||