Kuroiwa, Satoshi
Current rating: 1621
Record: 21-16
| Regional Championships Chiba 2023 (pioneer) | starting rating: 1604 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 82 | Murae, Ryuji (2053) | Lost 0-2 | -101594 |
| 2pioneer | 111 | Kohara, Soichiro (1388) | Won 2-0 | +141608 |
| 3pioneer | 32 | Sakuma, Takamichi (1418) | Lost 0-2 | -211587 |
| 4pioneer | 92 | Yamada, Daisuke (1475) | Won 2-1 | +161603 |
| 5pioneer | 56 | Yoshioka, Hideki (1722) | Won 2-1 | +201623 |
| 6pioneer | 52 | Kim, Do Hyung (1560) | Won 2-0 | +171640 |
| 7pioneer | 29 | Sugimoto, Takashi (1582) | Lost 1-2 | -191621 |
| top | average opponent: 1600record: 4-3 | new rating: 1621 | ||
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1591 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 127 | Yagi, Yohei (1505) | Lost 1-2 | -191572 |
| 4sealed | 503 | Yang, Siming (1479) | Won 2-1 | +161588 |
| 5sealed | 464 | Suzuki, Takuya 1104 (1461) | Won 2-0 | +161604 |
| 6sealed | 287 | Tada, Mitsuhiro (1742) | Lost 1-2 | -161588 |
| 7sealed | 438 | Takahashi, Yu (1621) | Won 2-1 | +191607 |
| 8sealed | 153 | Tanabe, Takumi (1589) | Won 2-1 | +171624 |
| 9sealed | 112 | Matsumoto, Tomohiro (1645) | Lost 1-2 | -171607 |
| 10draft | 194 | Aizawa, Tamotsu (1716) | Won 2-1 | +201627 |
| 11draft | 211 | Itou, Daiki 9873 (1530) | Won 2-0 | +161643 |
| 12draft | 205 | Lee, Ji-Hyun (1606) | Lost 0-2 | -191624 |
| 13draft | 164 | Mizuno, Masahito (1513) | Won 2-0 | +161640 |
| 14draft | 36 | Sumi, Kango (1626) | Lost 1-2 | -181622 |
| 15draft | 118 | Sekine, Yoshinori (1646) | Lost 0-2 | -181604 |
| top | average opponent: 1591record: 7-6 | new rating: 1604 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1630 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 528 | Yusuke, Ono (1577) | Lost 0-2 | -191611 |
| 3standard | 639 | Hatakeyama, Dai (1502) | Lost 1-2 | -201591 |
| top | average opponent: 1539record: 0-2 | new rating: 1591 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 60 | Hirose, Yuuki (1903) | Won 2-0 | +251525 |
| 2sealed | 395 | Yoshida, Kazutaka (1533) | Won 2-0 | +181543 |
| 3sealed | 431 | Kato, Kensuke (1820) | Won 2-1 | +231566 |
| 4sealed | 159 | Tamura, Satoshi (1529) | Lost 1-2 | -191547 |
| 5sealed | 206 | Taniguchi, Reo (1628) | Won 2-1 | +201567 |
| 6sealed | 279 | Boss, Matt (1657) | Won 2-0 | +191586 |
| 7sealed | 169 | Fujimoto, Yosuke (1795) | Won 2-0 | +221608 |
| 8sealed | 29 | Zhao, Tianyu (1635) | Lost 0-2 | -171591 |
| 9sealed | 126 | Song, Kaizheng (1619) | Won 2-0 | +181609 |
| 10draft | 621 | Kuo, Tzu-Ching (1999) | Won 2-0 | +251634 |
| 11draft | 615 | Hagiwara, Genta (1930) | Lost 0-2 | -131621 |
| 12draft | 618 | Nuruki, Hiroaki (1841) | Lost 0-2 | -141607 |
| 13draft | 703 | Hirayama, Shigetaka (1798) | Won 2-1 | +221629 |
| 14draft | 645 | Fujita, Toshihide (1733) | Lost 0-2 | -161613 |
| 15draft | 565 | Miyoshi, Tomohito (1587) | Won 2-1 | +171630 |
| top | average opponent: 1734record: 10-5 | new rating: 1630 | ||