Yahaba, Hirokazu
Current rating: 1566
| Grand Prix Yokohama 2019 (modern) | starting rating: 1525 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 21 | Watanabe, Seira (1525) | Won 2-0 | +181543 |
| 3modern | 115 | Morioka, Ryota (1516) | Lost 1-2 | -191524 |
| 4modern | 347 | Fukuda, Masahiro (1525) | Won 2-0 | +181542 |
| 5modern | 316 | Ishikawa, Jun (1457) | Won 2-1 | +171559 |
| 6modern | 277 | Matsumoto, Fumiya (1745) | Lost 0-2 | -151544 |
| 7modern | 436 | Masuhara, Hiroshi (1535) | Won 2-1 | +181562 |
| 8modern | 321 | Kurihara, Yuuji (1665) | Won 2-0 | +201582 |
| 9modern | 199 | Okamoto, Yuuya (1714) | Lost 1-2 | -161566 |
| top | average opponent: 1585record: 5-3 | new rating: 1566 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 848 | Morita, Yo (1615) | Won 2-1 | +201519 |
| 4modern | 706 | Hirose, Yuuki (1668) | Lost 1-2 | -151504 |
| 5modern | 798 | Miyoshi, Hiroki (1600) | Won 2-0 | +201524 |
| 6modern | 738 | Iriki, Ryou (1598) | Lost 1-2 | -171507 |
| 7modern | 886 | Kuwashiro, Yoshiyuki (1439) | Won 2-0 | +171524 |
| 8modern | 818 | Anan, Kazuyoshi (1552) | Lost 1-2 | -181506 |
| 9modern | 826 | Tokuyama, Yoshihiko (1526) | Won 2-1 | +191525 |
| top | average opponent: 1571record: 4-3 | new rating: 1525 | ||
| Grand Prix Shizuoka 2013 (THS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 59 | Shibuya, Ryosuke (1484) | Lost 0-2 | -181482 |
| 2standard | 329 | Sakaguchi, Hiroshi (1449) | Won 2-0 | +171499 |
| 3standard | 343 | Kaminaka, Sousuke (1484) | Lost 1-2 | -181481 |
| 4standard | 300 | Morita, Akira (1499) | Lost 1-2 | -181463 |
| 5standard | 370 | Ihashi, Toshiya (1463) | Won 2-0 | +181481 |
| 6standard | 276 | Tanahashi, Hirofumi (1474) | Won 2-0 | +181499 |
| top | average opponent: 1476record: 3-3 | new rating: 1499 | ||