Iwaki, Tetsuya
Current rating: 1589
Record: 46-48-1
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1648 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 245 | Mitsumoto, Takeo (1516) | Lost 0-2 | -211627 |
| 3sealed | 636 | Kim, Minjae (1531) | Lost 1-2 | -201607 |
| 4sealed | 980 | Kato, Hiroki3246 (1567) | Lost 0-2 | -181589 |
| top | average opponent: 1538record: 0-3 | new rating: 1589 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1552 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 237 | Sato, Naoki0360 (1446) | Won 2-0 | +161568 |
| 3sealed | 335 | Maeda, Dai (1509) | Won 2-0 | +171585 |
| 4sealed | 217 | Omiya, Takahiro (1664) | Won 2-0 | +191604 |
| 5sealed | 87 | Suzuki, Shoya (1626) | Won 2-0 | +181622 |
| 6sealed | 46 | Shimizu, Yuji (1584) | Won 2-0 | +181640 |
| 7sealed | 7 | Nakamura, Shuhei (1893) | Lost 0-2 | -141626 |
| 8sealed | 52 | Yagawa, Masataka (1657) | Won 2-1 | +191645 |
| 9sealed | 15 | Chang, Cheng Yu (1731) | Lost 0-2 | -171628 |
| 10draft | 558 | Kamo, Keisuke (1562) | Won 2-0 | +171645 |
| 11draft | 610 | Yajima, Hiromichi (1626) | Draw 1-1 | 01645 |
| 12draft | 691 | Sato, Yusei (1757) | Lost 0-2 | -161629 |
| 13draft | 661 | Kimura, Kenta (1489) | Won 2-0 | +151644 |
| 14draft | 563 | Miyagishi, Kohei (1620) | Won 2-1 | +181662 |
| 15draft | 636 | Senba, Kotaro (1864) | Lost 0-2 | -141648 |
| top | average opponent: 1645record: 9-4-1 | new rating: 1648 | ||
| Grand Prix Kyoto 2017 (HOU limited) | starting rating: 1525 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 162 | Kusunoki, Iori (1532) | Won 2-0 | +181543 |
| 4sealed | 8 | Inada, Scott (1634) | Won 2-0 | +191562 |
| 5sealed | 67 | Hasegawa, Kazuhiko (1765) | Won 2-0 | +221584 |
| 6sealed | 27 | Kitamoto, Hiroki (1888) | Won 2-0 | +231607 |
| 7sealed | 26 | Kinugasa, Satoshi (1805) | Lost 0-2 | -141593 |
| 8sealed | 22 | Martino, Valerio (1796) | Won 2-1 | +221615 |
| 9sealed | 32 | Wang, Chengji (1803) | Lost 0-2 | -151600 |
| 10draft | 292 | Saito, Tomoya (1833) | Lost 0-2 | -141586 |
| 11draft | 102 | Lunghi, Jacopo (1764) | Won 2-0 | +211607 |
| 12draft | 12 | Duke, Reid (2059) | Lost 1-2 | -101597 |
| 13draft | 186 | Noorlander, Niels (1750) | Lost 0-2 | -151582 |
| 14draft | 101 | Kawakami, Takehito (1765) | Lost 0-2 | -151567 |
| 15draft | 130 | Mine, Masahiro (1699) | Lost 0-2 | -151552 |
| top | average opponent: 1776record: 6-7 | new rating: 1552 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1522 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 306 | Sasaki, Ken (1562) | Won 2-0 | +181540 |
| 3standard | 597 | Hiroi, Genki (1650) | Won 2-1 | +201560 |
| 4standard | 258 | Yamade, Masato (1529) | Lost 1-2 | -181542 |
| 5standard | 349 | Sakaino, Yuta (1651) | Lost 0-2 | -161526 |
| 6standard | 563 | Suzuki, Kenta (1438) | Won 2-1 | +161542 |
| 7standard | 274 | Takeuchi, Shuuji (1556) | Lost 1-2 | -181524 |
| 8standard | 659 | Dae Kyung, Jeong (1537) | Lost 0-2 | -171507 |
| 9standard | 624 | Kimura, Takuya (1508) | Won 2-1 | +181525 |
| top | average opponent: 1554record: 4-4 | new rating: 1525 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1507 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 754 | Yoshida, Keitaro (1470) | Won 2-0 | +171524 |
| 2standard | 130 | Okamura, Takumi (1519) | Lost 0-2 | -181506 |
| 3standard | 1099 | Okada, Shinichi (1499) | Lost 1-2 | -181488 |
| 4standard | 1377 | Take, Toshiharu (1494) | Lost 1-2 | -181470 |
| 5standard | 1409 | Fujita, Gensho (1469) | Lost 0-2 | -181452 |
| 6standard | 1424 | Kobayashi, Saiki (1449) | Won 2-0 | +181470 |
| 7standard | 1240 | Kawano, Takahiro (1350) | Won 2-1 | +161486 |
| 8standard | 969 | Mabashi, Yuuto (1481) | Won 2-1 | +181504 |
| 9standard | 746 | Sato, Yuuya (Yamagata) (1501) | Won 2-1 | +181522 |
| top | average opponent: 1470record: 5-4 | new rating: 1522 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1479 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 664 | Miyake, Tetsuya (1590) | Won 2-1 | +201499 |
| 2sealed | 281 | Chan, Fung Shun (1575) | Won 2-0 | +191518 |
| 3sealed | 585 | Matsui, Hisataka (1753) | Lost 0-2 | -131505 |
| 4sealed | 351 | Ogawa, Ryou (1667) | Won 2-0 | +211526 |
| 5sealed | 354 | Ochi, Takushi (1450) | Won 2-0 | +161542 |
| 6sealed | 87 | Ushita, Masanori (1554) | Lost 0-2 | -181524 |
| 7sealed | 393 | Kajiyama, Yu (1516) | Lost 0-2 | -181506 |
| 8sealed | 489 | Suzuki, Nobuya (1538) | Won 2-0 | +191525 |
| 9sealed | 441 | Matsushita, Masayoshi (1525) | Lost 0-2 | -181507 |
| top | average opponent: 1574record: 5-4 | new rating: 1507 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1431 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 736 | Kotani, Sunao (1417) | Won 2-0 | +181449 |
| 2standard | 929 | Shiraki, Takahiro (1712) | Lost 0-2 | -131436 |
| 3standard | 1156 | Kashima, Akihiro (1632) | Lost 1-2 | -151421 |
| 4standard | 1165 | Shibayama, Hayato (1363) | Won 2-1 | +171438 |
| 5standard | 1027 | Nihongi, Yuta (1441) | Won 2-0 | +181456 |
| 6standard | 791 | Yasuda, Takaaki (1486) | Won 2-0 | +191475 |
| 7standard | 706 | Nakada, Shogo (1417) | Won 2-1 | +171492 |
| 8standard | 152 | Kumagai, Riku (1782) | Lost 0-2 | -131479 |
| top | average opponent: 1531record: 5-3 | new rating: 1479 | ||
| Grand Prix Hong Kong 2015 (ORI limited) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 39 | Clark, Kai (1500) | Won 2-0 | +191464 |
| 2sealed | 39 | Chan, Tin Yan (1517) | Lost 1-2 | -171447 |
| 3sealed | 39 | Choi, Ho-yeon (1586) | Lost 1-2 | -161431 |
| top | average opponent: 1535record: 1-2 | new rating: 1431 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1411 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 961 | Takeishi, Yuki (1500) | Lost 1-2 | -171394 |
| 2sealed | 1284 | Hasegawa, Shinya (1547) | Won 2-0 | +211415 |
| 3sealed | 1115 | Katakura, Takaaki (1500) | Won 2-0 | +201435 |
| 4sealed | 1023 | Ideue, Tetsuya (1491) | Lost 1-2 | -171418 |
| 5sealed | 1126 | Watanabe, Yuuki (1467) | Won 2-0 | +191437 |
| 6sealed | 1022 | Fujikawa, Takeo (1569) | Won 2-0 | +201457 |
| 7sealed | 934 | Hattori, Kazuki (1680) | Lost 0-2 | -141443 |
| 8sealed | 964 | Fujimoto, Takashi (1546) | Lost 1-2 | -161427 |
| 9sealed | 958 | Matsuo, Shuto (1422) | Won 2-1 | +181445 |
| top | average opponent: 1525record: 5-4 | new rating: 1445 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1367 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 626 | Ebihara, Hirotaka (1612) | Won 2-1 | +221389 |
| 2sealed | 630 | Osa, Tomoki (1538) | Won 2-0 | +211410 |
| 3sealed | 671 | Kawaguchi, Kyouhei (1771) | Lost 1-2 | -121398 |
| 4sealed | 780 | Tsuboyama, Shuta (1391) | Won 2-0 | +181416 |
| 5sealed | 761 | Shirakihara, Ryuuichi (1465) | Won 2-1 | +191435 |
| 6sealed | 679 | Floch, Ivan (2130) | Lost 0-2 | -71428 |
| 7sealed | 755 | Ueno, Hideto (1422) | Lost 1-2 | -181410 |
| 8sealed | 767 | Miyake, Satoshi (1459) | Won 2-1 | +191429 |
| 9sealed | 713 | Furujou, Takashi (1447) | Lost 0-2 | -181411 |
| top | average opponent: 1582record: 5-4 | new rating: 1411 | ||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1392 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 28 | Hayashi, Shouya (1616) | Lost 0-2 | -141378 |
| 2sealed | 328 | Satou, Kenichi (1378) | Lost 1-2 | -181360 |
| 3sealed | 366 | Kondou, Shin (1480) | Won 2-0 | +211381 |
| 4sealed | 371 | Tashima, Chihiro (1609) | Lost 0-2 | -141367 |
| top | average opponent: 1521record: 1-3 | new rating: 1367 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 608 | Sasai, Takashi (1410) | Lost 1-2 | -191426 |
| 2standard | 746 | Satou, Taiyou (1483) | Lost 0-2 | -171409 |
| 3standard | 921 | Watanabe, Takashi (1463) | Lost 0-2 | -171392 |
| top | average opponent: 1452record: 0-3 | new rating: 1392 | ||
| Grand Prix Yokohama 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 253 | Takeda, Hiroya (1445) | Lost 0-2 | -191481 |
| 2sealed | 431 | Sato, Masahito (1480) | Lost 1-2 | -181463 |
| 3sealed | 464 | Yamada, Masahiro (1461) | Lost 1-2 | -181445 |
| top | average opponent: 1462record: 0-3 | new rating: 1445 | ||