Sakai, Hironori
Current rating: 1496
Record: 15-17
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1450 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 693 | Wu, Yu-Ta (1466) | Lost 1-2 | -181432 |
| 2sealed | 693 | Shiraishi, Hiroaki (1682) | Won 2-1 | +231455 |
| 3sealed | 808 | Iwabuchi, Daisuke (1500) | Won 2-0 | +191474 |
| 4sealed | 456 | Shimazu, Yoshiki (1626) | Won 2-0 | +201494 |
| 5sealed | 155 | Kawasaki, Takeshi (1509) | Won 2-1 | +191513 |
| 6sealed | 265 | Nakajima, Yuusuke (1606) | Lost 0-2 | -171496 |
| 7sealed | 329 | Tokuyama, Yutaro (1538) | Lost 0-2 | -171479 |
| 8sealed | 485 | Yokota, Kazuya (1425) | Won 2-1 | +171496 |
| top | average opponent: 1544record: 5-3 | new rating: 1496 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1462 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 721 | Ooisi, Yasuhide (1500) | Won 2-1 | +191481 |
| 2standard | 576 | Tanaka, Takayuki5764 (1500) | Lost 1-2 | -181463 |
| 3standard | 1011 | Koyama, Noriki (1489) | Won 2-1 | +181481 |
| 4standard | 675 | Irie, Masafumi (1456) | Lost 0-2 | -181463 |
| 5standard | 934 | Saito, Keisuke (1396) | Lost 0-2 | -191444 |
| 6standard | 934 | Hoshi, Naoki (1477) | Lost 1-2 | -181426 |
| 7standard | 980 | Satou, Ryouta (1628) | Won 2-0 | +221448 |
| 8standard | 853 | Choi, Jae-Joon (1530) | Lost 0-2 | -171431 |
| 9standard | 784 | Handa, Fumiya (1461) | Won 2-1 | +191450 |
| top | average opponent: 1493record: 4-5 | new rating: 1450 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1431 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 141 | Wada, Yuusaku (1526) | Won 2-1 | +201451 |
| 2legacy | 292 | Takashima, Ryuichi (1495) | Lost 0-2 | -181433 |
| 3legacy | 783 | Akihiro, Kobayashi (1499) | Won 2-1 | +201453 |
| 4legacy | 757 | Matsuno, Kouji (1481) | Won 2-0 | +181471 |
| 5legacy | 408 | Azuma, Yuki (1503) | Won 2-1 | +191490 |
| 6legacy | 263 | Ozawa, Tomohiko (1520) | Won 2-1 | +181508 |
| 7legacy | 129 | Ikarashi, Satoru (1530) | Lost 0-2 | -171491 |
| 8legacy | 142 | Law, Tom (1852) | Lost 1-2 | -121479 |
| 9legacy | 409 | Tsuruyama, Ryosuke (1527) | Lost 1-2 | -171462 |
| top | average opponent: 1548record: 5-4 | new rating: 1462 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 318 | Nakai, Sunao (1655) | Lost 0-2 | -151485 |
| 4sealed | 547 | Kataoka, Hiroaki (1537) | Lost 0-2 | -171468 |
| 5sealed | 845 | Mizuno, Fumihiro (1507) | Lost 0-2 | -181450 |
| 6sealed | 850 | Serizawa, Yuuki (1472) | Lost 0-2 | -171433 |
| 7sealed | 926 | Oda, Yuuki (1291) | Won 2-1 | +151448 |
| 8sealed | 745 | Koshiba, Toshi (1483) | Lost 0-2 | -171431 |
| top | average opponent: 1491record: 1-5 | new rating: 1431 | ||