Iwakura, Tatsuro
Current rating: 1719 (#5356)
Record: 43-26-2
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1683 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 629 | Higuchi, Jun (1647) | Won 2-0 | +171700 |
| 2standard | 6 | Ishii, Hayato (1904) | Won 2-0 | +221722 |
| 3standard | 149 | Arita, Kento (1813) | Lost 0-2 | -161706 |
| 4standard | 937 | Wanibuchi, Kouji (1447) | Won 2-1 | +131719 |
| 5standard | 257 | Esaki, Keisuke (1701) | Lost 0-2 | -181701 |
| 6standard | 793 | Ogawa, Masaru (1518) | Won 2-1 | +141715 |
| 7standard | 642 | Inoue, Toru (1855) | Won 2-1 | +211736 |
| 8standard | 243 | Ooi, Masaki (1663) | Lost 1-2 | -191717 |
| 9standard | 415 | Matsumura, Naoya (1498) | Won 2-0 | +141731 |
| 10standard | 310 | Kodera, Yasunori (1572) | Won 2-1 | +151746 |
| 11standard | 263 | Kawamura, Naoki (1525) | Lost 1-2 | -221724 |
| 12standard | 323 | Kashiwagi, Souta (1610) | Won 2-1 | +161740 |
| 13standard | 225 | Nakamura, Yuki 8131 (1590) | Lost 1-2 | -211719 |
| top | average opponent: 1642record: 8-5 | new rating: 1719 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1686 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 675 | Ito, Hiromu (1500) | Won 2-0 | +151701 |
| 2sealed | 64 | Saitou, Ryuuga (1838) | Won 2-1 | +201721 |
| 3sealed | 84 | Hirano, Kosaku (1473) | Won 2-0 | +141735 |
| 4sealed | 114 | Akita, Naoto (1605) | Lost 1-2 | -211714 |
| 5sealed | 299 | Matsumoto, Naoya (1681) | Lost 0-2 | -181696 |
| 6sealed | 597 | Ryo, Ooe (1432) | Won 2-1 | +131709 |
| 7sealed | 528 | Komeda, Hiroshi (1559) | Lost 0-2 | -211688 |
| 8sealed | 665 | Fukumoto, Nobuhiro (1457) | Won 2-0 | +141702 |
| 9sealed | 355 | Hisano, Mikita (1458) | Won 2-1 | +141716 |
| 10draft | 330 | Hayashi, Daisuke (1613) | Lost 0-2 | -201696 |
| 11draft | 158 | Ishii, Yuki (1489) | Won 2-1 | +141710 |
| 12draft | 228 | Ueda, Yuya (1493) | Lost 1-2 | -221688 |
| 13draft | 81 | Furukawa, Takuto (1535) | Won 2-0 | +161704 |
| 14draft | 281 | Sato, Hisao (1566) | Lost 1-2 | -211683 |
| top | average opponent: 1550record: 8-6 | new rating: 1683 | ||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1661 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 567 | Arai, Junpei (1500) | Won 2-0 | +151676 |
| 2sealed | 599 | Hirabayashi, Yuki2979 (1518) | Lost 1-2 | -211655 |
| 3sealed | 804 | Ogata, Nobuhiko (1471) | Won 2-0 | +151670 |
| 4sealed | 772 | Kim, Taehyoung (1483) | Won 2-0 | +151685 |
| 5sealed | 564 | Ito, Ryo 9184 (1537) | Won 2-1 | +151700 |
| 6sealed | 535 | Sunada, Shougo (1721) | Won 2-1 | +181718 |
| 7sealed | 555 | Orihara, Jun (1583) | Won 2-0 | +161734 |
| 8sealed | 521 | Nakai, Sunao (1564) | Lost 0-2 | -211713 |
| 9sealed | 583 | Tanaka, Hironao (1557) | Won 2-0 | +151728 |
| 10draft | 81 | Nakayama, Takuya (1694) | Lost 1-2 | -181710 |
| 11draft | 37 | Kitayama, Masaya (1924) | Lost 1-2 | -151695 |
| 12draft | 107 | Ichihara, Kentaro (1493) | Won 2-1 | +151710 |
| 13draft | 101 | Hirose, Yoshiyuki (1591) | Lost 1-2 | -201690 |
| 14draft | 37 | Nishikawa, Masayuki (1551) | Won 2-1 | +151705 |
| 15draft | 67 | Tsuruoka, Shouta (1649) | Lost 1-2 | -191686 |
| top | average opponent: 1589record: 9-6 | new rating: 1686 | ||
| Grand Prix Yokohama 2004 (COK limited) | starting rating: 1553 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 197 | Iwano, Shuzo (1606) | Won 2-0 | +191572 |
| 2sealed | 122 | Kanazawa, Ayanobu (1586) | Won 2-0 | +181590 |
| 3sealed | 56 | Toyota, Kazuhisa (1538) | Won 2-0 | +171607 |
| 4sealed | 39 | Ozawa, Takahiro (1620) | Lost 0-2 | -181589 |
| 5sealed | 82 | Iizuka, Tsuyoshi (1535) | Won 2-1 | +171606 |
| 6sealed | 24 | Shimizu, Motohiro (1556) | Won 2-1 | +171623 |
| 7sealed | 40 | Okajima, Kuninori (1525) | Won 2-1 | +171640 |
| 8sealed | 48 | Arahori, Kazuaki (1671) | ID | 01640 |
| 9rochester | 21 | Iyanaga, Junya (1586) | Lost 0-2 | -191621 |
| 10rochester | 14 | Kashima, Akihiro (1692) | Won 2-0 | +191640 |
| 11rochester | 30 | Nishiwaki, Kazuhisa (1644) | Won 2-1 | +181658 |
| 12rochester | 14 | Kaji, Tomohiro (1862) | Lost 0-2 | -141644 |
| 13rochester | 4 | Nikkuni, Fumihito (1648) | Draw 1-1 | 01644 |
| 14rochester | 2 | Yamaguchi, Yuuichi (1620) | Won 2-0 | +171661 |
| top | average opponent: 1621record: 9-3-2 | new rating: 1661 | ||
| Grand Prix Shizuoka 2003 (MRD limited) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 2 | Hakamata, Hiroaki (1502) | Won 2-1 | +171536 |
| 2sealed | 169 | Nagato, Kazuo (1536) | Won 2-0 | +181554 |
| 3sealed | 76 | Okada, Hiroaki (1552) | Lost 0-2 | -181536 |
| 4sealed | 163 | Tajima, Kenji (1483) | Won 2-0 | +171553 |
| 5sealed | 92 | Kozakai, Yukio (1630) | Lost 0-2 | -161537 |
| 6sealed | 114 | Abueg, John (1501) | Won 2-1 | +171554 |
| 7sealed | 86 | Masui, Noriaki (1491) | Won 2-0 | +171571 |
| 8sealed | 40 | Yano, Ryuji (1556) | Lost 0-2 | -181553 |
| top | average opponent: 1531record: 5-3 | new rating: 1553 | ||
| Grand Prix Shizuoka 2001 (ODY limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 220 | Shibuya, Tsutomu (1509) | Won 2-1 | +181518 |
| 2sealed | 71 | Yamagishi, Hajime (1582) | Lost 1-2 | -171501 |
| 3sealed | 195 | Aki, Yasutoshi (1500) | Won 1-0 | +181519 |
| 4sealed | 170 | Hiyama, Taku (1501) | Lost 0-2 | -181501 |
| 5sealed | 182 | Nomura, Daichi (1500) | Won 2-0 | +181519 |
| 6sealed | 146 | Abe, Kazufumi (1514) | Won 2-1 | +181537 |
| 7sealed | 95 | Tatsumi, Tomohiro (1549) | Draw 1-1 | 01537 |
| 8sealed | 85 | Sakamoto, Daiki (1520) | Lost 0-2 | -181519 |
| top | average opponent: 1522record: 4-3-1 | new rating: 1519 | ||