Aihara, Hiroki
Current rating: 1524
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 213 | Kamio, Tatsuya (1500) | Won 2-1 | +181501 |
| 2pioneer | 176 | Takazawa, Takafumi (1515) | Won 2-1 | +181519 |
| 3pioneer | 348 | Odachi, Takuhei (1649) | Lost 1-2 | -151504 |
| 4pioneer | 557 | Makino, Tatsuya (1573) | Won 2-0 | +191523 |
| 5pioneer | 359 | Hasebe, Sho (1584) | Lost 0-2 | -171506 |
| 6pioneer | 492 | Kakizono, Ryo (1559) | Won 2-0 | +191525 |
| 7pioneer | 338 | Matsuzaki, Eiji (1471) | Lost 0-2 | -191506 |
| 8pioneer | 321 | Sekiya, Haruki (1518) | Won 2-0 | +181524 |
| top | average opponent: 1546record: 5-3 | new rating: 1524 | ||
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1476 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 236 | Ma, Geoffrey (1500) | Lost 1-2 | -181458 |
| 2sealed | 566 | Yamagishi, Yuki 8956 (1437) | Won 2-1 | +181476 |
| 3sealed | 867 | Tanaka, Yuki 4774 (1499) | Won 2-1 | +181494 |
| 4sealed | 640 | Goto, Kosuke (1324) | Won 2-0 | +151509 |
| 5sealed | 473 | Miyasaka, Sho (1699) | Lost 0-2 | -141495 |
| 6sealed | 476 | Matsuyama, Ryousuke (1670) | Lost 0-2 | -151480 |
| 7sealed | 547 | Kawata, Kazuki (1505) | Won 2-0 | +181498 |
| 8sealed | 362 | Kagami, Hajime (1637) | Lost 0-2 | -151483 |
| top | average opponent: 1534record: 4-4 | new rating: 1483 | ||
| Grand Prix Tokyo 2016 (SOI standard) | starting rating: 1510 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 459 | Hara, Hajime (1466) | Lost 0-2 | -191491 |
| 2standard | 1015 | Mizukoshi, Hideyuki (1433) | Won 2-1 | +171508 |
| 3standard | 1274 | Hatori, Nobuhiro (1505) | Lost 1-2 | -181490 |
| 4standard | 1288 | Endo, Jun'Ichi (1729) | Lost 1-2 | -141476 |
| top | average opponent: 1533record: 1-3 | new rating: 1476 | ||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 973 | Inui, Takahiro (1500) | Lost 0-2 | -181482 |
| 2sealed | 1389 | Yoshida, Mitsutaka (1072) | Won 2-0 | +111493 |
| 3sealed | 1149 | Shimura, Takeshi (1469) | Lost 0-2 | -191474 |
| 4sealed | 1198 | Tabata, Shuzo (1486) | Won 2-0 | +191493 |
| 5sealed | 1188 | Wagatsuma, Atsushi (1498) | Won 2-0 | +181511 |
| 6sealed | 1092 | Takagi, Kenji (1483) | Won 2-0 | +171528 |
| 7sealed | 976 | Sakai, Sadaharu (1492) | Lost 1-2 | -181510 |
| top | average opponent: 1428record: 4-3 | new rating: 1510 | ||