Iwasaki, Junya
Current rating: 1534
Record: 44-46-2
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1563 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 137 | Itou, Motoki (1629) | Lost 0-2 | -171546 |
| 2pioneer | 596 | Usui, Yuuka (1429) | Won 2-0 | +161562 |
| 3pioneer | 463 | Odagiri, Mato (1536) | Won 2-0 | +171579 |
| 4pioneer | 263 | Shirai, Shota 5117 (1455) | Lost 0-2 | -201559 |
| 5pioneer | 409 | Shimada, Katsuhiro (1540) | Won 2-1 | +181577 |
| 6pioneer | 436 | Yonemura, Tomomi (1407) | Lost 1-2 | -211556 |
| 7pioneer | 392 | Yamazaki, Takayoshi (1366) | Lost 1-2 | -221534 |
| top | average opponent: 1480record: 3-4 | new rating: 1534 | ||
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1585 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 19 | Sumikawa, Kyohei (1451) | Lost 1-2 | -211564 |
| 2standard | 481 | Okusu, Hiromu (1461) | Won 2-0 | +171581 |
| 3standard | 684 | Yoshimoto, Masanobu (1577) | Won 2-0 | +181599 |
| 4standard | 519 | Takahashi, Hiroshi (1531) | Lost 1-2 | -201579 |
| 5standard | 581 | Wachi, Shinya (1658) | Draw 1-1 | +21581 |
| 6standard | 560 | Kazama, Yusaku (1587) | Lost 1-2 | -181563 |
| top | average opponent: 1544record: 2-3-1 | new rating: 1563 | ||
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1380 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 510 | Kubota, Shou (1488) | Won 2-0 | +201400 |
| 2sealed | 377 | Kuze, Hiroki (1491) | Lost 0-2 | -161384 |
| 3sealed | 751 | Natsukawa, Makoto (1598) | Won 2-0 | +221406 |
| 4sealed | 713 | Nagumo, Kazuya (1644) | Lost 0-2 | -141392 |
| 5sealed | 627 | Boku, Takashi (1675) | Won 2-1 | +231415 |
| 6sealed | 446 | Totsuka, Shogo (1513) | Won 2-0 | +201435 |
| 7sealed | 314 | Hojo, Makoto (1606) | Won 2-0 | +211456 |
| 8sealed | 271 | Ito, Shinya (1563) | Won 2-1 | +201476 |
| 9sealed | 82 | Chino, Takayuki (1564) | Lost 1-2 | -161460 |
| 10draft | 213 | Kubota, Taiga (1542) | Won 2-1 | +191479 |
| 11draft | 100 | Hirabayashi, Yuki (1623) | Won 2-1 | +211500 |
| 12draft | 194 | Kasuya, Takeshi (1604) | Won 2-1 | +201520 |
| 13draft | 183 | Ishida, Shinpei (1662) | Won 2-0 | +201540 |
| 14draft | 24 | Tahara, Fumiya (1639) | Won 2-0 | +201560 |
| 15draft | 88 | Pan, Minxing (1963) | Won 2-1 | +251585 |
| top | average opponent: 1612record: 12-3 | new rating: 1585 | ||
| Grand Prix Shizuoka 2017 (AER standard) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 184 | Abe, Kazuhiro (1524) | Draw 1-1 | +21449 |
| 2standard | 618 | Kawauchi, Kouji (1534) | Lost 0-2 | -171432 |
| 3standard | 1154 | Hirooka, Hideki (1422) | Won 2-0 | +181450 |
| 4standard | 903 | Hayashi, Masashi (1492) | Lost 0-2 | -171433 |
| 5standard | 1055 | Nakayama, Satomi (1476) | Lost 1-2 | -171416 |
| 6standard | 1119 | Nakajima, Takanori (1433) | Lost 0-2 | -181398 |
| 7standard | 1061 | Inoue, Kota (1349) | Lost 1-2 | -191379 |
| 8standard | 960 | Makuta, Eiji (1448) | Lost 0-2 | -171362 |
| 9standard | 852 | Matsumoto, Naoki (1358) | Won 2-0 | +181380 |
| top | average opponent: 1448record: 2-6-1 | new rating: 1380 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1457 | |||
| round | table | opponent (rating) | result | Δrating |
| 3legacy | 196 | Yamamoto, Masafumi (1551) | Lost 1-2 | -171440 |
| 4legacy | 682 | Okuda, Masateru (1462) | Lost 1-2 | -171423 |
| 5legacy | 858 | Kamei, Kazuhiko (1391) | Won 2-1 | +171440 |
| 6legacy | 475 | Kodama, Kentaro (1580) | Lost 1-2 | -151425 |
| 7legacy | 783 | Yuasa, Kentarou (1508) | Won 2-1 | +191444 |
| 8legacy | 446 | Shinozaki, Hiroki (1468) | Lost 0-2 | -171427 |
| 9legacy | 642 | Shoji, Tatsuro (1587) | Won 2-1 | +201447 |
| top | average opponent: 1507record: 3-4 | new rating: 1447 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 628 | Tamura, Kenji (1588) | Lost 0-2 | -161466 |
| 3standard | 1142 | Nakanishi, Yuusuke (1466) | Won 2-1 | +181484 |
| 4standard | 584 | Sakai, Hajime (1515) | Won 2-1 | +181502 |
| 5standard | 217 | Alvarez, Paolo Lorenzo (1504) | Won 2-0 | +181520 |
| 6standard | 347 | Matsumoto, Yuki1423 (1741) | Lost 0-2 | -141506 |
| 7standard | 560 | Taki, Masaya (1414) | Lost 0-2 | -191487 |
| 8standard | 635 | Brown, Eric (1759) | Lost 0-2 | -131474 |
| 9standard | 715 | Hayashi, Kazuya (1531) | Lost 0-2 | -171457 |
| top | average opponent: 1565record: 3-5 | new rating: 1457 | ||
| Grand Prix Kobe 2015 (BFZ standard) | starting rating: 1498 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 411 | Sasaki, Tsuyoshi (1581) | Won 2-0 | +191517 |
| 3standard | 336 | Tsuboyama, Shuta (1475) | Lost 0-2 | -181499 |
| 4standard | 465 | Suzuki, Ryoichi (1517) | Won 2-0 | +181517 |
| 5standard | 285 | Ooi, Masaki (1553) | Lost 0-2 | -171500 |
| 6standard | 692 | Tanaka, Naohito (1514) | Lost 0-2 | -181482 |
| top | average opponent: 1528record: 2-3 | new rating: 1482 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 2099 | Ibrahim, Khairil (1446) | Won 2-1 | +181463 |
| 3sealed | 2027 | Sano, Kouta (1509) | Lost 0-2 | -171446 |
| 4sealed | 2281 | Kiyota, Osamu (1514) | Lost 0-2 | -161430 |
| 5sealed | 2323 | Narita, Chisato (1484) | Won 2-0 | +191449 |
| 6sealed | 2170 | Yamashita, Yusuke (1515) | Won 2-0 | +191468 |
| 7sealed | 2105 | Matsui, Hisataka (1800) | Lost 1-2 | -121456 |
| 8sealed | 2170 | Saitou, Keiichirou (1635) | Won 2-1 | +211477 |
| 9sealed | 2115 | Hori, Masataka (1648) | Won 2-0 | +211498 |
| top | average opponent: 1569record: 5-3 | new rating: 1498 | ||
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1460 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 611 | Enomoto, Masayuki (1454) | Won 2-0 | +181478 |
| 2legacy | 510 | Smallheer, Matthew (1518) | Lost 0-2 | -181460 |
| 3legacy | 775 | Kagoi, Yuki (1445) | Lost 1-2 | -181442 |
| 4legacy | 825 | Neal, John (1386) | Won 2-0 | +171459 |
| 5legacy | 857 | Ochi, Takahiro (1519) | Won 2-0 | +191478 |
| 6legacy | 697 | Shimizu, Ryouta (1530) | Lost 1-2 | -171461 |
| 7legacy | 765 | Yomura, Syuuta (1502) | Won 2-1 | +191480 |
| 8legacy | 718 | Kaga, Hiroyuki (1511) | Lost 1-2 | -181462 |
| 9legacy | 674 | Hayashi, Masashi (1515) | Lost 1-2 | -171445 |
| top | average opponent: 1487record: 4-5 | new rating: 1445 | ||
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 286 | Ishii, Kenta (1512) | Lost 1-2 | -181501 |
| 2sealed | 306 | Sakuragi, Jun (1467) | Lost 0-2 | -191482 |
| 3sealed | 517 | Yonesu, Yuuki (1415) | Lost 0-2 | -191463 |
| 4sealed | 487 | Maeda, Takayuki (1336) | Won 2-0 | +161479 |
| 5sealed | 432 | Ochi, Keita (1463) | Lost 1-2 | -191460 |
| 6sealed | 367 | Hara, Kazuma (1445) | Won 2-1 | +181478 |
| 7sealed | 297 | Tanaka, Keita (1485) | Lost 1-2 | -181460 |
| 8sealed | 248 | Okada, Kou (1460) | Lost 1-2 | -181442 |
| 9sealed | 201 | Ibayashi, Kousuke (1427) | Won 2-1 | +181460 |
| top | average opponent: 1445record: 3-6 | new rating: 1460 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 213 | Takehana, Yuki (1451) | Lost 1-2 | -191481 |
| 2modern | 351 | Komatsu, Satoshi (1603) | Lost 1-2 | -161465 |
| 3modern | 486 | Ehara, Daisuke (1409) | Won 2-1 | +171482 |
| 4modern | 411 | Nakamura, Satoshi2634 (1482) | Lost 1-2 | -181464 |
| 5modern | 453 | Kozuka, Kouji (1418) | Won 2-0 | +171481 |
| 6modern | 388 | Oldekamp, Ulf (1544) | Won 2-1 | +201501 |
| 7modern | 298 | Ishii, Kuya (1564) | Won 2-0 | +191520 |
| 8modern | 274 | Mochizuki, Tomohiro (1473) | Won 2-0 | +171537 |
| 9modern | 194 | Doi, Yuki (1534) | Lost 1-2 | -181519 |
| top | average opponent: 1498record: 5-4 | new rating: 1519 | ||