Iwasaki, Kazuma
Current rating: 1576
| Grand Prix Kobe 2017 (modern) | starting rating: 1540 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 150 | Shin, Kanyou (1462) | Draw 1-1 | -11539 |
| 2modern | 628 | Sugimura, Masakazu (1456) | Won 2-1 | +161555 |
| 3modern | 688 | Ng, Tony (1505) | Won 2-1 | +171572 |
| 4modern | 363 | Mishima, Keita (1731) | Won 2-1 | +211593 |
| 5modern | 183 | Kakumae, Teruya (1923) | Lost 1-2 | -121581 |
| 6modern | 402 | Hirose, Yoshiyuki (1585) | Won 2-0 | +181599 |
| 7modern | 250 | Masuda, Kouhei (1479) | Lost 1-2 | -201579 |
| 8modern | 430 | Ikebe, Takahiro (1437) | Lost 1-2 | -211558 |
| 9modern | 594 | Hamasuna, Yoshitaka (1562) | Won 2-0 | +181576 |
| top | average opponent: 1571record: 5-3-1 | new rating: 1576 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1561 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 560 | Itou, Nobuaki (1415) | Won 2-1 | +151576 |
| 2standard | 480 | Beppu, Yoshihiro (1464) | Draw 1-1 | -21574 |
| 3standard | 603 | Takeuchi, Ataru (1666) | Won 2-0 | +201594 |
| 4standard | 302 | Wong, Nicholas Jonathan (1828) | Lost 1-2 | -141580 |
| 5standard | 542 | Yoshizawa, Kaoru (1399) | Lost 0-2 | -211559 |
| 6standard | 741 | Komachi, Akinori (1509) | Lost 1-2 | -191540 |
| top | average opponent: 1547record: 2-3-1 | new rating: 1540 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1564 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1121 | Ohata, Hiroyuki (1464) | Lost 0-2 | -191545 |
| 2sealed | 1367 | Oobayashi, Naoki (1455) | Won 2-1 | +161561 |
| top | average opponent: 1460record: 1-1 | new rating: 1561 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 839 | Yuki, Kuroyanagi (1500) | Lost 0-2 | -181482 |
| 2modern | 1097 | Shimizu, Takeyasu (1482) | Won 2-0 | +181500 |
| 3modern | 1134 | Okumura, Genki (1560) | Won 2-0 | +191519 |
| 4modern | 1010 | Duve, Tom (1517) | Won 2-0 | +181537 |
| 5modern | 869 | Yamashita, Tatsunosuke (1540) | Won 2-1 | +181555 |
| 6modern | 750 | Arai, Yuusuke3019 (1522) | Won 2-0 | +181573 |
| 7modern | 754 | Shirai, Yuuki (1589) | Won 2-0 | +181591 |
| 8modern | 739 | Esaki, Keisuke (1745) | Lost 1-2 | -151576 |
| 9modern | 772 | Yukuhiro, Ken (1968) | Lost 1-2 | -121564 |
| top | average opponent: 1603record: 6-3 | new rating: 1564 | ||