Sakai, Arata
Current rating: 1380
Record: 10-18
| Grand Prix Yokohama 2019 (modern) | starting rating: 1431 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 434 | Kimura, Hidemasa (1451) | Lost 0-2 | -171414 |
| 2modern | 710 | Mizuno, Takeshi (1506) | Lost 1-2 | -171397 |
| 3modern | 1052 | Hibino, Yuusuke (1463) | Lost 1-2 | -171380 |
| top | average opponent: 1473record: 0-3 | new rating: 1380 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1442 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 295 | Kondo, Yuki (1447) | Won 2-1 | +181460 |
| 2sealed | 519 | Shimauchi, Yoshihito (1491) | Won 2-0 | +181478 |
| 3sealed | 92 | Nishimura, Shinji (1509) | Lost 1-2 | -171461 |
| 4sealed | 485 | Matsumoto, Yuki1423 (1647) | Lost 1-2 | -151446 |
| 5sealed | 557 | Yamazaki, Hiroyuki (1604) | Lost 1-2 | -151431 |
| top | average opponent: 1540record: 2-3 | new rating: 1431 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1433 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 70 | Masuda, Sho (1542) | Lost 0-2 | -161417 |
| 2legacy | 614 | Matsumoto, Ryohei (1440) | Won 2-1 | +181435 |
| 3legacy | 892 | Ito, Hiroto (1499) | Won 2-0 | +201455 |
| 4legacy | 644 | Sadato, Daichi (1518) | Lost 0-2 | -171438 |
| 5legacy | 914 | Kaku, Tomohiro (1496) | Won 2-1 | +191457 |
| 6legacy | 703 | Wyatt, Joseph (1470) | Won 2-0 | +181475 |
| 7legacy | 506 | Kajihara, Koji (1589) | Lost 1-2 | -161459 |
| 8legacy | 673 | Takei, Jun (1494) | Lost 1-2 | -171442 |
| top | average opponent: 1506record: 4-4 | new rating: 1442 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1468 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 268 | Kondou, Masaru (1648) | Lost 0-2 | -151453 |
| 2standard | 840 | Manaka, Akihiro (1446) | Lost 0-2 | -181435 |
| 3standard | 1551 | Sakaguchi, Hiroshi (1309) | Won 2-0 | +161451 |
| 4standard | 1452 | Shimura, Takeshi (1444) | Won 2-0 | +171468 |
| 5standard | 1071 | Saeki, Tomoya (1532) | Lost 0-2 | -161452 |
| 6standard | 1052 | Sato, Koji (1426) | Lost 0-2 | -191433 |
| top | average opponent: 1468record: 2-4 | new rating: 1433 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 273 | Yamaguchi, Yuuichi (1582) | Won 2-0 | +191519 |
| 2sealed | 28 | Kouno, Junpei (1518) | Lost 0-2 | -181501 |
| 3sealed | 326 | Oonishi, Tomokazu (1528) | Won 2-1 | +191520 |
| 4sealed | 245 | Ishikawa, Ryota (1488) | Lost 1-2 | -191501 |
| 5sealed | 409 | McNeace, Shawn (1559) | Lost 1-2 | -171484 |
| 6sealed | 376 | Furuya, Masashi (1553) | Lost 1-2 | -161468 |
| top | average opponent: 1538record: 2-4 | new rating: 1468 | ||