Ishii, Takuya
Current rating: 1691
Record: 35-22
| Grand Prix Shizuoka 2018 (legacy) (legacy) | starting rating: 1665 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 455 | Tanaka, Sho (1495) | Won 2-1 | +151680 |
| 2legacy | 199 | Sugimura, Yoshiyasu (1690) | Won 2-1 | +181698 |
| 3legacy | 208 | Kataoka, Tatsuya (1483) | Won 2-0 | +151713 |
| 4legacy | 3 | Arreza, Quinn Norli (1627) | Won 2-0 | +161729 |
| 5legacy | 9 | Ogi, Suguru (1582) | Won 2-0 | +151744 |
| 6legacy | 33 | Kyan, Morihito (1665) | Lost 0-2 | -191725 |
| 7legacy | 70 | Hishida, Akinori (1515) | Won 2-1 | +141739 |
| 8legacy | 11 | Shen, Yizheng (1644) | Won 2-0 | +161755 |
| 9legacy | 27 | Nakajima, Jun (1528) | Won 2-0 | +141769 |
| 10legacy | 17 | Watanabe, Shogo5163 (1635) | Won 2-1 | +161785 |
| 11legacy | 3 | Takao, Shota (2041) | Lost 1-2 | -141771 |
| 12legacy | 20 | Yamabe, Kazumi (1489) | Lost 0-2 | -231748 |
| 13legacy | 31 | Nakao, Motohiko (1725) | Lost 1-2 | -181730 |
| 14legacy | 47 | Ootsuki, Masahiro (1565) | Lost 0-2 | -211709 |
| 15legacy | 62 | Kamo, Riki (1713) | Lost 1-2 | -181691 |
| top | average opponent: 1626record: 9-6 | new rating: 1691 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1659 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 508 | Hosokawa, Takahiro (1357) | Won 2-0 | +131672 |
| 3standard | 644 | Semura, Junichi (1643) | Won 2-0 | +171689 |
| 4standard | 199 | Yoshihara, Shinji (1467) | Lost 1-2 | -211668 |
| 5standard | 236 | Tateno, Tomoaki (1424) | Lost 1-2 | -231645 |
| 6standard | 489 | Kanda, Yuusuke (1483) | Won 2-1 | +151660 |
| 7standard | 262 | Takeshita, Toru (1709) | Lost 1-2 | -171643 |
| 8standard | 569 | Ueda, Tadahiko (1536) | Won 2-1 | +161659 |
| 9standard | 423 | Oshikawa, Taishi (1534) | Won 2-1 | +161675 |
| 10standard | 366 | Katagiri, Kazushi (1596) | Lost 1-2 | -201655 |
| 11standard | 359 | Sugimura, Yoshiyasu (1705) | Lost 1-2 | -171638 |
| 12standard | 359 | Kato, Jun (1559) | Won 2-1 | +171655 |
| 13standard | 310 | Suzuki, Issei (1584) | Won 2-0 | +171672 |
| 14standard | 239 | Maseguchi, Masashi (1442) | Won 2-0 | +141686 |
| 15standard | 219 | Nakamura, Mio (1569) | Lost 1-2 | -211665 |
| top | average opponent: 1543record: 8-6 | new rating: 1665 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 3legacy | 501 | Hibino, Yasutaka (1706) | Won 2-0 | +221538 |
| 4legacy | 162 | Miyawaki, Takeshi (1665) | Won 2-1 | +201558 |
| 5legacy | 135 | Hosoi, Ippei (1746) | Won 2-1 | +221580 |
| 6legacy | 19 | Ochiai, Yusuke (1700) | Won 2-0 | +201600 |
| 7legacy | 12 | Morishita, Mizuki (1844) | Won 2-1 | +221622 |
| 8legacy | 3 | Tani, Chiharu (1723) | Lost 0-2 | -161606 |
| 9legacy | 31 | Nakano, Akinori (1588) | Won 2-1 | +181624 |
| 10legacy | 25 | Toriumi, Takashi (1477) | Lost 1-2 | -211603 |
| 11legacy | 89 | Shinohara, Gen 8257 (1577) | Won 2-0 | +171620 |
| 12legacy | 56 | Ishida, Tatsuya (1628) | Won 2-0 | +191639 |
| 13legacy | 16 | Date, Hiroshi (1820) | Won 2-0 | +211660 |
| 14legacy | 10 | Matsumoto, Kazuma 0580 (1650) | Won 2-0 | +181678 |
| 15legacy | 6 | Homma, Akira (1660) | Lost 0-2 | -191659 |
| top | average opponent: 1676record: 10-3 | new rating: 1659 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 562 | Shimada, Akihiro (1519) | Won 2-0 | +181536 |
| 2sealed | 270 | Hamachiyo, Takahiro (1535) | Won 2-0 | +181554 |
| 3sealed | 18 | Matsubara, Takeyuki (1608) | Lost 1-2 | -171537 |
| 4sealed | 430 | Sakai, Shigeto (1445) | Lost 0-2 | -191518 |
| 5sealed | 911 | Chiba, Shouhei (1435) | Won 2-1 | +161534 |
| 6sealed | 731 | Suga, Hiroki (1550) | Lost 0-2 | -181516 |
| top | average opponent: 1515record: 3-3 | new rating: 1516 | ||
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 789 | Kawamura, Takayuki (1500) | Lost 0-2 | -181482 |
| 2legacy | 861 | Kanetuna, Yoshinori (1492) | Lost 0-2 | -181464 |
| 3legacy | 944 | Yamada, Junpei (1463) | Won 2-1 | +181482 |
| 4legacy | 848 | Kadono, Takayuki (1507) | Won 2-0 | +191501 |
| 5legacy | 849 | Masuyama, Yuko (1239) | Won 2-0 | +131514 |
| 6legacy | 773 | Kaneda, Yoshiyuki (1582) | Lost 1-2 | -171497 |
| 7legacy | 763 | Prin, Geoffrey (1550) | Won 2-1 | +191516 |
| 8legacy | 685 | Yamada, Takuya (1690) | Won 2-0 | +211537 |
| 9legacy | 624 | Takahashi, Naohiro (1486) | Lost 0-2 | -191518 |
| top | average opponent: 1501record: 5-4 | new rating: 1518 | ||