Sakai, Kengo
Current rating: 1283
Record: 9-23-1
| Grand Prix Kyoto 2017 (HOU limited) | starting rating: 1328 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 288 | Oda, Ryota (1516) | Lost 0-2 | -151313 |
| 2sealed | 731 | Yokotsuka, Yu (1457) | Lost 1-2 | -151298 |
| 3sealed | 1059 | Noguchi, Shunnsuke (1462) | Lost 1-2 | -151283 |
| top | average opponent: 1478record: 0-3 | new rating: 1283 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1373 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 444 | Taniguchi, Hiroki (1500) | Lost 0-2 | -161357 |
| 2modern | 746 | Naka, Hidehiro (1398) | Won 2-1 | +191376 |
| 3modern | 1087 | De Silva, Aaron (1512) | Lost 0-2 | -161360 |
| 4modern | 1048 | Okada, Minori (1484) | Lost 1-2 | -161344 |
| 5modern | 1191 | Saito, Shigeru (1421) | Lost 1-2 | -161328 |
| top | average opponent: 1463record: 1-4 | new rating: 1328 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1398 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 1069 | Otuka, Ryutaro (1380) | Lost 1-2 | -181380 |
| 2standard | 1154 | Matumoto, Daichi (1430) | Won 2-1 | +191399 |
| 3standard | 1160 | Kitajima, Masahiro (1607) | Lost 1-2 | -151384 |
| 4standard | 1359 | Nakamura, Satoshi (Katsushika) (1483) | Won 2-1 | +201404 |
| 5standard | 962 | Tanaka, Yuuya (1554) | Lost 0-2 | -151389 |
| 6standard | 1088 | Nakai, Yoshito (1481) | Lost 1-2 | -161373 |
| top | average opponent: 1489record: 2-4 | new rating: 1373 | ||
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1450 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 699 | Nakanishi, Kazuki (1500) | Lost 0-2 | -171433 |
| 2legacy | 784 | Kuroda, Akihiro (1430) | Lost 1-2 | -181415 |
| 3legacy | 981 | Satake, Tetuo (1463) | Lost 1-2 | -171398 |
| top | average opponent: 1464record: 0-3 | new rating: 1398 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1486 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 337 | Hata, Tomonori (1500) | Won 2-1 | +181504 |
| 2sealed | 116 | Takeda, Shunsuke (1482) | Lost 0-2 | -181486 |
| 3sealed | 243 | Hirata, Keiitirou (1498) | Lost 1-2 | -181468 |
| 4sealed | 453 | Kuno, Takashi (1488) | Lost 1-2 | -181450 |
| top | average opponent: 1492record: 1-3 | new rating: 1450 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1469 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 790 | Tomomizu, Takuya (1463) | Won 2-1 | +171486 |
| 2modern | 703 | Ehara, Makoto (1461) | Won 2-0 | +181504 |
| 3modern | 776 | Nagai, Yoshio (1448) | Won 2-0 | +171521 |
| 4modern | 793 | Sotomura, Yoshihiro (1533) | Lost 1-2 | -181503 |
| 5modern | 911 | Okada, Yuuta (1535) | Lost 1-2 | -171486 |
| 6modern | 858 | Osugi, Shotaro (1524) | Won 2-0 | +181504 |
| 7modern | 794 | Nagata, Satoshi (1475) | Draw 1-1 | 01504 |
| 8modern | 859 | Ichikawa, Jun (1502) | Lost 0-2 | -181486 |
| top | average opponent: 1493record: 4-3-1 | new rating: 1486 | ||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 124 | Nakamura, Taiki (1500) | Lost 1-2 | -181482 |
| 2sealed | 282 | Shiwaku, Tsuyoshi (1725) | Won 2-1 | +221504 |
| 3sealed | 289 | Sugimoto, Hiroaki (1592) | Lost 0-2 | -161488 |
| 4sealed | 299 | Kunioka, Ryota (1413) | Lost 0-2 | -191469 |
| top | average opponent: 1557record: 1-3 | new rating: 1469 | ||