Saitou, Ippei
Current rating: 1529
Record: 30-27-6
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1569 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 141 | Hasegawa, Shinpei (1460) | Won 2-1 | +161585 |
| 2standard | 386 | Kidera, Seita (1755) | Lost 1-2 | -151570 |
| 3standard | 1045 | Maryu, Sotaro (1460) | Lost 0-2 | -201550 |
| 4standard | 972 | Miyasaka, Sho (1535) | Lost 0-2 | -181532 |
| 5standard | 1134 | Kawasaki, Hideaki (1473) | Won 2-0 | +171549 |
| 6standard | 907 | Ohtsuka, Youhei (1450) | Lost 0-2 | -201529 |
| top | average opponent: 1522record: 2-4 | new rating: 1529 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1597 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 149 | Nakanishi, Kota (1397) | Draw 1-1 | -31594 |
| 2sealed | 614 | Suzuki, Kazuto (1476) | Won 2-1 | +151609 |
| 3sealed | 587 | Shimizu, Yuta (1519) | Lost 0-2 | -191590 |
| 4sealed | 856 | Ishikawa, Jun (1436) | Draw 1-1 | -31587 |
| 5sealed | 974 | Atomi, Yuki (1487) | Won 2-0 | +161603 |
| 6sealed | 758 | Kuo, Tzu-Ching (1907) | Won 2-0 | +241627 |
| 7sealed | 545 | Kawaguchi, Toshifumi (1547) | Lost 0-2 | -201607 |
| 8sealed | 695 | Itakura, Kenichi (1527) | Lost 1-2 | -191588 |
| 9sealed | 650 | Kouyama, Shinji (1564) | Lost 0-2 | -191569 |
| top | average opponent: 1540record: 3-4-2 | new rating: 1569 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1607 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 337 | Matuda, Mituaki (1500) | Draw 1-1 | -21605 |
| 2standard | 546 | Mizoguchi, Satoru (1469) | Won 2-0 | +161621 |
| 3standard | 591 | Yamamoto, Shinya (1451) | Draw 1-1 | -31618 |
| 4standard | 803 | Ootani, Yousuke (1592) | Draw 1-1 | -11617 |
| 5standard | 651 | Aoi, Masashi (1495) | Lost 0-2 | -201597 |
| top | average opponent: 1501record: 1-1-3 | new rating: 1597 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1616 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 423 | Yamanouchi, Takanori (1500) | Won 2-0 | +161632 |
| 2sealed | 49 | Yoshimura, Naoto (1509) | Lost 1-2 | -201612 |
| 3sealed | 504 | Itagaki, Ryuji (1723) | Lost 1-2 | -161596 |
| 4sealed | 500 | Morita, Masayuki (1437) | Won 2-0 | +151611 |
| 5sealed | 388 | Inoue, Kiyohisa (1452) | Won 2-0 | +151626 |
| 6sealed | 228 | Itou, Tomoya (1600) | Lost 0-2 | -191607 |
| top | average opponent: 1537record: 3-3 | new rating: 1607 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1550 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 214 | Yokota, Kazuya (1459) | Won 2-0 | +161566 |
| 2standard | 137 | Takahashi, Daichi (1518) | Won 2-1 | +171583 |
| 3standard | 179 | Tomizawa, Shin (1489) | Won 2-1 | +161599 |
| 4standard | 98 | Miyoshi, Hiroki (1600) | Won 2-0 | +181617 |
| 5standard | 47 | Aizawa, Keiji (1727) | Lost 0-2 | -161601 |
| 6standard | 86 | Liang, Chihwei (1569) | Won 2-0 | +181619 |
| 7standard | 63 | Ichikawa, Yasura (1387) | Won 2-0 | +141633 |
| 8standard | 15 | Nuruki, Hiroaki (1643) | Won 2-1 | +181651 |
| 9standard | 166 | Kaizu, Hareta (1640) | Won 2-1 | +181669 |
| 10standard | 19 | Syoujiki, Tomoya (1599) | Won 2-1 | +161685 |
| 11standard | 15 | Hirata, Koutatsu (1574) | Lost 0-2 | -201665 |
| 12standard | 36 | Ou, Kaitou (1602) | Draw 1-1 | -11664 |
| 13standard | 28 | Baba, Yasunori (1793) | Lost 1-2 | -161648 |
| 14standard | 47 | Irimura, Daisuke (1589) | Lost 1-2 | -191629 |
| 15standard | 65 | Huang, Hao-Shan (1886) | Lost 1-2 | -131616 |
| top | average opponent: 1605record: 9-5-1 | new rating: 1616 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1587 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 7 | Omonishi, Kojiro (1439) | Lost 0-2 | -211566 |
| 3sealed | 285 | Saitou, Keiichirou (1653) | Lost 1-2 | -161550 |
| top | average opponent: 1546record: 0-2 | new rating: 1550 | ||
| Grand Prix Nagoya 2012 (RTR standard) | starting rating: 1462 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 177 | Oikawa, Tetsuro (1464) | Won 2-1 | +181480 |
| 2standard | 243 | Soejima, Takayuki (1520) | Won 2-0 | +191499 |
| 3standard | 97 | Emori, Shinichi (1508) | Lost 0-2 | -181481 |
| 4standard | 406 | Kanehira, Haruki (1447) | Won 2-0 | +171498 |
| 5standard | 365 | Sugita, Kou (1404) | Won 2-1 | +161514 |
| 6standard | 129 | Sugisawa, Tsuyoshi (1597) | Won 2-0 | +201534 |
| 7standard | 117 | Miyawaki, Takeshi (1568) | Won 2-0 | +191553 |
| 8standard | 50 | Nogami, Daisuke (1641) | Won 2-1 | +191572 |
| 9standard | 21 | Aizawa, Yuuichi (1687) | Lost 1-2 | -161556 |
| 10standard | 102 | Ichihara, Kentaro (1544) | Won 2-0 | +181574 |
| 11standard | 50 | Shimada, Hiroya (1733) | Lost 1-2 | -151559 |
| 12standard | 88 | Muraoka, Daiki (1595) | Won 2-0 | +191578 |
| 13standard | 43 | Nishizawa, Taichi (1605) | Won 0-0 | +181596 |
| 14standard | 31 | Hagiwara, Noriyuki (1779) | Lost 1-2 | -151581 |
| 15standard | 51 | Kawahara, Ryouta (1616) | Won 2-1 | +191600 |
| 16standard | 35 | Kawakami, Hiroshi (1856) | Lost 1-2 | -131587 |
| top | average opponent: 1598record: 11-5 | new rating: 1587 | ||
| Grand Prix Yokohama 2012 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 116 | Oono, Jun (1500) | Lost 1-2 | -181482 |
| 2modern | 436 | Nagahiro, Masato (1488) | Lost 0-2 | -181464 |
| 3modern | 649 | Yamaguchi, Takao (1383) | Won 2-0 | +171481 |
| 4modern | 664 | Oda, Naoki (1437) | Lost 0-2 | -191462 |
| top | average opponent: 1452record: 1-3 | new rating: 1462 | ||