Igarashi, Takuma
Current rating: 1582
Record: 42-39-2
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1563 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 107 | Yamagishi, Kenta (1473) | Lost 0-2 | -191544 |
| 3sealed | 612 | Okuno, Yuuki (1532) | Won 2-1 | +171561 |
| 4sealed | 552 | Satou, Noboru (1623) | Won 2-0 | +191580 |
| 5sealed | 345 | Mori, Shuichi (1532) | Won 2-1 | +181598 |
| 6sealed | 322 | Nagumo, Kazuya (1676) | Lost 0-2 | -171581 |
| 7sealed | 283 | Tsuzaki, Akira (1601) | Won 2-0 | +181599 |
| 8sealed | 178 | Saito, Ryo 6701 (1615) | Lost 0-2 | -171582 |
| top | average opponent: 1579record: 4-3 | new rating: 1582 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1583 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 167 | Qin, Xiaoqi (1728) | Lost 1-2 | -161567 |
| 3modern | 941 | Miyano, Yosuke (1522) | Won 2-0 | +171584 |
| 4modern | 618 | Aikyo, Yuichi (1518) | Lost 0-2 | -191565 |
| 5modern | 757 | Nishida, Keisuke (1531) | Won 2-0 | +181583 |
| 6modern | 601 | Hayashi, Hisaaki (1508) | Lost 1-2 | -201563 |
| top | average opponent: 1562record: 2-3 | new rating: 1563 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1587 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 384 | Yamaguchi, Shotaro (1518) | Won 2-1 | +171604 |
| 3standard | 352 | Yokumichi, Jun (1485) | Won 2-1 | +161620 |
| 4standard | 44 | Nakamura, Souta (1697) | Lost 0-2 | -171603 |
| 5standard | 201 | Hirano, Sigenobu (1467) | Won 2-0 | +151618 |
| 6standard | 265 | Yamada, Takuya (1664) | Lost 0-2 | -171601 |
| 7standard | 281 | Kuroiwa, Tadayuki (1562) | Lost 0-2 | -181583 |
| top | average opponent: 1565record: 3-3 | new rating: 1583 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 567 | Mizuno, Akimitsu (1174) | Won 2-1 | +121528 |
| 2standard | 450 | Takahashi, Kazuya (1601) | Won 2-1 | +191547 |
| 3standard | 347 | Tanahashi, Masayasu (1814) | Lost 0-2 | -131534 |
| 4standard | 633 | Nakamura, Yuu (1473) | Won 2-0 | +171551 |
| 5standard | 534 | Kumura, Kazuya (1588) | Won 2-1 | +191570 |
| 6standard | 280 | Jinnai, Ryosuke (1521) | Won 2-0 | +171587 |
| 7standard | 276 | Yakushi, Hideki (1582) | Won 2-0 | +181605 |
| 8standard | 206 | Yoshida, Kenichiro (1594) | Won 2-0 | +171622 |
| 9standard | 12 | Hieda, Ryu (1611) | Lost 0-2 | -181604 |
| 10standard | 116 | Yamada, Hiroki (1603) | Lost 1-2 | -181586 |
| 11standard | 100 | Ogasawara, Tomoaki (1605) | Won 2-1 | +191605 |
| 12standard | 104 | Kagami, Hajime (1626) | Lost 0-2 | -181587 |
| top | average opponent: 1566record: 8-4 | new rating: 1587 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1479 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 307 | Arakaki, Yuuichi (1482) | Won 2-1 | +181497 |
| 2sealed | 407 | Taketsuji, Hitoshi (1520) | Won 2-0 | +191516 |
| 3sealed | 306 | Tanaka, Hayato (1418) | Lost 0-2 | -201496 |
| 4sealed | 757 | Umehara, Masashi (1507) | Won 2-0 | +181514 |
| 5sealed | 505 | Ohashi, Ryo (1535) | Won 2-0 | +191533 |
| 6sealed | 233 | Sakuta, Akira (1485) | Lost 1-2 | -191514 |
| 7sealed | 317 | Yanou, Tomiyuki (1522) | Won 2-1 | +181532 |
| 8sealed | 149 | Tanaka, Rizumu (1642) | Lost 0-2 | -161516 |
| top | average opponent: 1514record: 5-3 | new rating: 1516 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 206 | Mizuguchi, Chihiro (1500) | Won 2-0 | +191482 |
| 2modern | 168 | Kamikawa, Takuya (1468) | Won 2-0 | +181500 |
| 3modern | 219 | Kaneko, Masayuki (1701) | Won 2-1 | +211521 |
| 4modern | 324 | Ishiguro, Satoshi (1747) | Lost 0-2 | -141507 |
| 5modern | 517 | Aihara, Shogaku (1619) | Lost 1-2 | -161491 |
| 6modern | 687 | Tanaka, Rizumu (1690) | Won 2-1 | +221513 |
| 7modern | 357 | Miyamoto, Akihiro (1654) | Lost 1-2 | -151498 |
| 8modern | 598 | Tamai, Toshimasa (1489) | Lost 1-2 | -191479 |
| top | average opponent: 1609record: 4-4 | new rating: 1479 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1524 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 461 | Ishihara, Masayuki (1385) | Lost 1-2 | -211503 |
| 2standard | 901 | Satou, Kentarou (1419) | Lost 1-2 | -191484 |
| 3standard | 1182 | Inagaki, Kaoru (1494) | Lost 1-2 | -181466 |
| 4standard | 1283 | Watanabe, Kenta (1413) | Won 2-1 | +171483 |
| 5standard | 1087 | Sakurai, Yoshinori (1453) | Lost 0-2 | -181465 |
| 6standard | 1140 | Aoki, Yuta (1444) | Won 2-0 | +171482 |
| 7standard | 1045 | Kaneiwa, Shunta (1431) | Lost 1-2 | -191463 |
| top | average opponent: 1434record: 2-5 | new rating: 1463 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1460 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 535 | Noritake, Hiroto (1500) | Won 2-0 | +191479 |
| 2standard | 291 | Akai, Satoshi (1677) | Won 2-0 | +211500 |
| 3standard | 8 | Kashita, Naoto (1551) | Won 2-0 | +191519 |
| 4standard | 38 | Sato, Hikaru (Fukushima) (1553) | Draw 1-1 | +11520 |
| 5standard | 192 | Ishii, Taiyo (1556) | Won 2-1 | +181538 |
| 6standard | 105 | Horie, Tooru (1701) | Lost 0-2 | -151523 |
| 7standard | 263 | Fukuki, Akito (1509) | Won 2-0 | +181541 |
| 8standard | 155 | Yoshimura, Wataru (1588) | Draw 1-1 | +11542 |
| 9standard | 302 | Kojima, Terumasa (1544) | Lost 0-2 | -181524 |
| top | average opponent: 1575record: 5-2-2 | new rating: 1524 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1468 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 704 | Hoshi, Kazumi (1528) | Won 2-0 | +191487 |
| 2sealed | 450 | Kasuga, Ryou (1560) | Lost 0-2 | -171470 |
| 3sealed | 870 | Kuroda, Yoshirou (1465) | Lost 1-2 | -181452 |
| 4sealed | 902 | Arce, Aaron (1604) | Won 2-1 | +211473 |
| 5sealed | 839 | Fukihara, Shouta (1465) | Won 2-0 | +181491 |
| 6sealed | 424 | Itakura, Toshiyuki (1623) | Lost 0-2 | -161475 |
| 7sealed | 856 | Zhao, Tianyu (1632) | Lost 1-2 | -151460 |
| top | average opponent: 1554record: 3-4 | new rating: 1460 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1480 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 150 | Chee, Cristerson (1440) | Won 2-0 | +171497 |
| 2sealed | 239 | Yamane, Yoshiyuki (1487) | Lost 1-2 | -181479 |
| 3sealed | 457 | Fujiwara, Ryoji (1418) | Won 2-0 | +171496 |
| 4sealed | 270 | Matsuda, Sho'taro (1518) | Lost 1-2 | -181478 |
| 5sealed | 266 | Fujii, Dai (1616) | Lost 1-2 | -161462 |
| 6sealed | 368 | Furuhashi, Takuya (1484) | Won 2-0 | +191481 |
| 7sealed | 285 | Koshiba, Norihiko (1467) | Won 2-0 | +181499 |
| 8sealed | 203 | Sano, Futoshi (1655) | Lost 0-2 | -161483 |
| 9sealed | 159 | Morikawa, Taichi (1612) | Lost 1-2 | -151468 |
| top | average opponent: 1522record: 4-5 | new rating: 1468 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 914 | Miyashita, Hiroaki (1500) | Lost 1-2 | -181482 |
| 2sealed | 897 | Nakayama, Akitsugu (1463) | Won 2-0 | +181500 |
| 3sealed | 929 | Ishida, Koji (1498) | Lost 0-2 | -181482 |
| 4sealed | 967 | Ishizaki, Yoshiki (1466) | Won 2-0 | +171499 |
| 5sealed | 912 | Naito, Yuuki (1400) | Lost 0-2 | -191480 |
| top | average opponent: 1465record: 2-3 | new rating: 1480 | ||