Sakai, Daichi
Current rating: 1514
Record: 21-21-1
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1557 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 363 | Nakai, Yutaka (1708) | Won 2-1 | +211578 |
| 2sealed | 516 | Itou, Kuninosuke (1280) | Lost 0-2 | -241554 |
| 3sealed | 788 | Miura, Hiroki (1324) | Won 2-1 | +141568 |
| 4sealed | 390 | Kitsu, Syoto (1544) | Lost 1-2 | -181550 |
| 5sealed | 677 | Mizuno, Ryo (1502) | Won 2-1 | +171567 |
| 6sealed | 650 | Usui, Haruki (1698) | Lost 0-2 | -161551 |
| 7sealed | 600 | Ishizaka, Akira (1615) | Lost 0-2 | -171534 |
| 8sealed | 489 | Nakamoto, Takahiro (1407) | Lost 0-2 | -201514 |
| top | average opponent: 1510record: 3-5 | new rating: 1514 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1525 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 378 | Negishi, Atsuya (1459) | Won 2-1 | +161541 |
| 2modern | 5 | Tsumori, Shun (1518) | Won 2-1 | +181559 |
| 3modern | 354 | Tanaka, Yu 2860 (1552) | Won 2-0 | +181577 |
| 4modern | 276 | Hagiwara, Yuichi (1533) | Lost 1-2 | -191558 |
| 5modern | 323 | Kanaura, Kazuki (1533) | Lost 0-2 | -181540 |
| 6modern | 657 | Hotate, Yuta (1525) | Won 2-0 | +171557 |
| 7modern | 371 | Yamakawa, Hiroaki (1561) | Won 2-0 | +181575 |
| 8modern | 242 | Shiiba, Yusei (1539) | Lost 0-2 | -181557 |
| top | average opponent: 1527record: 5-3 | new rating: 1557 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1488 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 788 | Utida, Koudai (1500) | Won 2-0 | +181506 |
| 2sealed | 266 | Kaneko, Hiroto (1455) | Won 2-0 | +171523 |
| 3sealed | 212 | Murakami, Souta (1701) | Won 2-0 | +221545 |
| 4sealed | 265 | Nose, Shunsuke (1875) | Won 2-0 | +231568 |
| 5sealed | 57 | Shiozu, Ryouma (1781) | Lost 0-2 | -141554 |
| 6sealed | 280 | Kawakami, Kazuto (1833) | Lost 1-2 | -131541 |
| 7sealed | 209 | Aoki, Yoshitsugu (1620) | Lost 1-2 | -161525 |
| top | average opponent: 1681record: 4-3 | new rating: 1525 | ||
| Grand Prix Kyoto 2017 (HOU limited) | starting rating: 1461 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 572 | Tomita, Naoki (1634) | Draw 1-1 | +31464 |
| 2sealed | 559 | Maegawa, Tooru (1555) | Won 2-1 | +191483 |
| 3sealed | 545 | Inoue, Reiichi (1566) | Lost 0-2 | -161467 |
| 4sealed | 815 | Deguchi, Keizou (1559) | Lost 1-2 | -161451 |
| 5sealed | 918 | Taitou, Masahiko (1454) | Won 2-0 | +181469 |
| 6sealed | 746 | Tanaka, Yuji (1498) | Lost 1-2 | -181451 |
| 7sealed | 858 | Shiba, Yoshimasa (1520) | Won 2-0 | +191470 |
| 8sealed | 671 | Takahashi, Toshirou (1454) | Won 2-1 | +181488 |
| top | average opponent: 1530record: 4-3-1 | new rating: 1488 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1479 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 585 | Saitou, Shuujirou (1562) | Lost 1-2 | -161463 |
| 2modern | 801 | Okano, Yukimasa (1520) | Lost 0-2 | -171446 |
| 3modern | 1260 | Osuga, Hiroaki (1296) | Won 2-1 | +151461 |
| 4modern | 945 | Nishioka, Yugo (1470) | Lost 0-2 | -181443 |
| 5modern | 1252 | Kikkawa, Tomoki (1466) | Lost 1-2 | -171426 |
| 6modern | 1196 | Narumoto, Kazuya (1443) | Won 2-0 | +181444 |
| 7modern | 1060 | Ishihara, Akira (1366) | Won 2-0 | +171461 |
| top | average opponent: 1446record: 3-4 | new rating: 1461 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1497 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 660 | Hashizume, Yuuya (1528) | Lost 0-2 | -181479 |
| top | record: 0-1 | new rating: 1479 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 2129 | Nakaizumi, Kazuya (1500) | Won 2-1 | +181518 |
| 2sealed | 2223 | Suda, Kazuho (1504) | Won 2-0 | +181536 |
| 3sealed | 2141 | Honda, Masakazu (1603) | Lost 0-2 | -171519 |
| 4sealed | 2168 | Schwenk, Ryan (1283) | Lost 0-2 | -221497 |
| top | average opponent: 1473record: 2-2 | new rating: 1497 | ||