Niwa, Takahiro
Current rating: 1483
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 325 | Miyoshi, Hiroki (1623) | Won 2-1 | +201540 |
| 2pioneer | 104 | Mori, Shuichi (1503) | Lost 0-2 | -191521 |
| 3pioneer | 528 | Kataoka, Kousuke (1499) | Lost 1-2 | -181503 |
| 4pioneer | 753 | Kimoto, Keiya (1396) | Won 2-1 | +161519 |
| 5pioneer | 529 | Saito, Yohei (1522) | Lost 0-2 | -181501 |
| 6pioneer | 609 | Yamano, Tatsuto (1250) | Won 2-0 | +131514 |
| 7pioneer | 389 | Nose, Koji (1801) | Lost 0-2 | -121502 |
| 8pioneer | 377 | Masuda, Shinichiro (1475) | Lost 1-2 | -191483 |
| top | average opponent: 1509record: 3-5 | new rating: 1483 | ||
| Grand Prix Kyoto 2015 (legacy) | starting rating: 1462 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 732 | Nagae, Yasuji (1324) | Lost 1-2 | -201442 |
| 2legacy | 780 | Kobayashi, Masakatsu (1386) | Won 2-0 | +171459 |
| 3legacy | 787 | Kikuchi, Yuuji (1647) | Lost 0-2 | -151444 |
| 4legacy | 920 | Maruyama, Takahiro (1507) | Lost 0-2 | -171427 |
| 5legacy | 911 | Sawai, Masahiro (1470) | Won 2-1 | +191446 |
| 6legacy | 794 | Kushibe, Toshiki (1632) | Won 2-0 | +211467 |
| 7legacy | 749 | Haruta, Takatsugu (1363) | Won 2-1 | +161483 |
| 8legacy | 712 | Miyazaki, Masato (1491) | Won 2-1 | +191502 |
| 9legacy | 622 | Inoue, Hisashi (1532) | Won 2-1 | +181520 |
| top | average opponent: 1484record: 6-3 | new rating: 1520 | ||
| Grand Prix Nagoya 2014 (BNG limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 157 | Matsumoto, Ayana (1467) | Won 2-0 | +171517 |
| 2sealed | 107 | Liu, Xiao (1438) | Lost 0-2 | -191498 |
| 3sealed | 188 | Sumitomo, Yusuke (1505) | Lost 1-2 | -181480 |
| 4sealed | 347 | Nakamura, Satoshi (Tokyo) (1483) | Lost 1-2 | -181462 |
| top | average opponent: 1473record: 1-3 | new rating: 1462 | ||