Yamazaki, Hiroaki
Current rating: 1583
Record: 18-13-3
| Regional Championships Chiba 2023 (pioneer) | starting rating: 1532 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 89 | Nishiura, Ryosuke (1667) | Lost 0-2 | -161516 |
| 2pioneer | 104 | Mizutani, Yosuke (1775) | Lost 1-2 | -131503 |
| 3pioneer | 97 | Maki, Hidekazu (1605) | Won 2-0 | +201523 |
| 4pioneer | 69 | YANG, SUNGJI (1489) | Won 2-0 | +171540 |
| 5pioneer | 67 | Tsujii, Shoichi (1493) | Won 2-0 | +171557 |
| 6pioneer | 36 | Nakano, Atsushi (1568) | Won 2-1 | +191576 |
| 7pioneer | 24 | JANG, HYUNDEOK (1593) | Draw 0-0 | 01576 |
| 8pioneer | 24 | Yashiro, Kazuki (1831) | Draw 1-1 | +41580 |
| 9pioneer | 29 | Miyano, Yudai (1607) | Lost 1-2 | -171563 |
| 10pioneer | 29 | wakamatsu, kazuki (1537) | Won 2-0 | +181581 |
| 11pioneer | 25 | Kimura, Shunsuke (1669) | Won 2-1 | +191600 |
| 12pioneer | 20 | Fujino, Yoshitaka (1663) | Lost 0-2 | -171583 |
| top | average opponent: 1625record: 6-4-2 | new rating: 1583 | ||
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1558 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 133 | Choi, Youjin (1500) | Won 2-1 | +171575 |
| 2pioneer | 187 | Sugimoto, Shimpei (1486) | Draw 1-1 | -11574 |
| 3pioneer | 419 | Fukano, Tatsuya (1505) | Lost 1-2 | -201554 |
| 4pioneer | 565 | Tan, Xiangsheng (1384) | Won 2-0 | +151569 |
| 5pioneer | 387 | Sakai, Takanori (1451) | Lost 1-2 | -201549 |
| 6pioneer | 525 | Usami, Taro (1600) | Lost 0-2 | -171532 |
| top | average opponent: 1488record: 2-3-1 | new rating: 1532 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1552 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 239 | Chan, Teksang (1550) | Lost 0-2 | -181534 |
| 2sealed | 646 | Kubota, Sin (1494) | Lost 1-2 | -191515 |
| 3sealed | 1114 | Suzuki, Yuuhei (1313) | Won 2-1 | +141529 |
| 4sealed | 843 | Hatta, Tetsuya (1466) | Won 2-1 | +171546 |
| 5sealed | 886 | Nakano, Yukito (1485) | Won 2-1 | +171563 |
| 6sealed | 448 | Suzuki, Ryuuichi (1336) | Won 2-0 | +141577 |
| 7sealed | 471 | Harada, Masato (1527) | Lost 0-2 | -191558 |
| top | average opponent: 1453record: 4-3 | new rating: 1558 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1051 | Akai, Satoshi (1719) | Won 2-1 | +221522 |
| 2sealed | 1023 | Onodera, Yusuke (1541) | Lost 1-2 | -181504 |
| 3sealed | 1226 | Tatebe, Takayuki (1499) | Won 2-0 | +181522 |
| 4sealed | 954 | Higaki, Motohide (1497) | Won 2-0 | +181540 |
| 5sealed | 969 | Nakamura, Ryouta5022 (1520) | Won 2-1 | +171557 |
| 6sealed | 942 | Fujii, Yuusaku (1319) | Won 2-0 | +141571 |
| 7sealed | 837 | Onuki, Hirohito (1575) | Won 2-0 | +181589 |
| 8sealed | 820 | Suzuki, Kiyofumi (1517) | Lost 0-2 | -191570 |
| 9sealed | 890 | Cheng, Ting Hin (1572) | Lost 0-2 | -181552 |
| top | average opponent: 1529record: 6-3 | new rating: 1552 | ||