Sakai, Hajime
Current rating: 1489
Record: 6-7
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 649 | Sakamoto, Satoshi (1642) | Won 2-1 | +211524 |
| 2standard | 448 | Comley, Rainy (1465) | Won 2-0 | +171541 |
| 3standard | 366 | Kazami, Hayato (1531) | Lost 0-2 | -181523 |
| 4standard | 588 | Sasao, Yusuke (1702) | Lost 1-2 | -151508 |
| 5standard | 812 | Sano, Masayo (1437) | Lost 1-2 | -191489 |
| average opponent: 1555record: 2-3 | new rating: 1489 | |||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 568 | Kobayashi, Jyun5270 (1432) | Lost 1-2 | -191481 |
| 2standard | 852 | Urano, Syouhei (1490) | Won 2-0 | +181499 |
| 3standard | 1296 | Kase, Koichi (1408) | Won 2-1 | +161515 |
| 4standard | 584 | Iwasaki, Junya (1484) | Lost 1-2 | -181497 |
| 5standard | 890 | Sotomura, Yoshihiro (1598) | Won 2-1 | +201517 |
| 6standard | 894 | Hee, Xow (1514) | Won 2-1 | +171534 |
| 7standard | 521 | Wijaya, Christian (1658) | Lost 0-2 | -151519 |
| 8standard | 749 | Setya, Steven Dirga (1662) | Lost 0-2 | -161503 |
| average opponent: 1531record: 4-4 | new rating: 1503 | |||