Chiba, Takashi
Current rating: 1560
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1506 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 103 | Machii, Takuto (1476) | Won 2-0 | +171523 |
| 2sealed | 19 | Sakai, Ryou (1461) | Won 2-0 | +171540 |
| 3sealed | 118 | Kamizono, Naoki (1823) | Lost 1-2 | -131527 |
| 4sealed | 526 | Haneda, Daisuke (1749) | Won 2-1 | +221549 |
| 5sealed | 213 | Aizawa, Tamotsu (1702) | Won 2-0 | +211570 |
| 6sealed | 306 | Futamata, Yojiro (1850) | Lost 1-2 | -131557 |
| 7sealed | 483 | Zhong, Zhenming (1635) | Won 2-1 | +191576 |
| 8sealed | 334 | Liu, Xuan (1674) | Lost 1-2 | -161560 |
| top | average opponent: 1671record: 5-3 | new rating: 1560 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1525 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 68 | Aoki, Taro (1500) | Lost 1-2 | -181507 |
| 2sealed | 968 | Uehara, Daisuke (1461) | Won 2-1 | +171524 |
| 3sealed | 919 | Matsumura, Hideaki (1535) | Lost 0-2 | -181506 |
| top | average opponent: 1499record: 1-2 | new rating: 1506 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 369 | Ito, Hajime (1563) | Lost 1-2 | -171483 |
| 2modern | 665 | Wakayama, Tetsuya (1482) | Won 2-0 | +181501 |
| 3modern | 741 | Saito, Yuki (1575) | Won 2-0 | +191520 |
| 4modern | 661 | Jung, Yong Hyuk (1536) | Lost 0-2 | -171503 |
| 5modern | 747 | Yajima, Tatsuaki (1690) | Won 2-1 | +211524 |
| 6modern | 781 | Kuronuma, Noriyuki (1448) | Won 2-0 | +171541 |
| 7modern | 424 | Maki, Hidekazu (1516) | Lost 0-2 | -191522 |
| 8modern | 554 | Matsuo, Yoshiyuki (1644) | Won 2-1 | +201542 |
| 9modern | 375 | Nemoto, Daisuke (1576) | Lost 1-2 | -171525 |
| top | average opponent: 1559record: 5-4 | new rating: 1525 | ||