Yamaguchi, Takahiro
Current rating: 1407
Record: 11-19
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1342 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 208 | Shimada, Masahiko (1734) | Lost 0-2 | -111331 |
| 2pioneer | 551 | Sugai, Hiroshi (1417) | Won 2-0 | +191350 |
| 3pioneer | 478 | Fujimoto, Yosuke (1769) | Won 2-0 | +251375 |
| 4pioneer | 228 | Fujioka, Naoya (1701) | Lost 1-2 | -121363 |
| 5pioneer | 427 | Hozuki, Atsushi (1526) | Lost 1-2 | -151348 |
| 6pioneer | 586 | Hayami, Toshihiro (1485) | Won 2-0 | +211369 |
| 7pioneer | 417 | Komaki, Shota (1440) | Won 2-1 | +191388 |
| 8pioneer | 298 | Kusakabe, Yu (1447) | Won 2-1 | +191407 |
| top | average opponent: 1565record: 5-3 | new rating: 1407 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1363 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 276 | Hakoda, Ryo (1451) | Lost 1-2 | -161347 |
| 2modern | 699 | Shibata, Syouhei (1480) | Lost 0-2 | -161331 |
| 3modern | 1153 | Kubota, Katsuma (1525) | Won 2-0 | +221353 |
| 4modern | 842 | Zhang, Chi (1680) | Lost 0-2 | -131340 |
| 5modern | 984 | Okutomi, Yuusuke (1297) | Won 2-0 | +181358 |
| 6modern | 890 | O, Minami (1478) | Lost 0-2 | -161342 |
| top | average opponent: 1485record: 2-4 | new rating: 1342 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1410 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 534 | Nakajima, Masato (1462) | Won 2-0 | +191429 |
| 2standard | 491 | Katayama, Kojiro (1518) | Lost 0-2 | -171412 |
| 3standard | 764 | Yorgason, Jason (1429) | Lost 0-2 | -171395 |
| 4standard | 922 | Izawa, Kazuki (1524) | Lost 1-2 | -161379 |
| 5standard | 970 | Esuga, Yuuki (1450) | Lost 1-2 | -171362 |
| 6standard | 912 | Nakanishi, Kota (1353) | Won 2-0 | +181380 |
| 7standard | 764 | Nakajima, Takanori (1441) | Lost 1-2 | -171363 |
| top | average opponent: 1454record: 2-5 | new rating: 1363 | ||
| Grand Prix Shizuoka 2018 (legacy) (legacy) | starting rating: 1468 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 300 | Ogasawara, Shou (1380) | Lost 1-2 | -201448 |
| 2legacy | 503 | Mizuno, Soichiro (1465) | Lost 1-2 | -171431 |
| 3legacy | 669 | Ishikawa, Takuma (1322) | Won 2-1 | +161447 |
| 4legacy | 493 | Asada, Hiroki (1413) | Lost 0-2 | -191428 |
| 5legacy | 611 | Kanayama, Haruki (1492) | Won 2-0 | +191447 |
| 6legacy | 538 | Matsushita, Tokuo (1361) | Lost 1-2 | -191428 |
| 7legacy | 487 | Hirooka, Yoshihiro (1425) | Lost 0-2 | -181410 |
| top | average opponent: 1408record: 2-5 | new rating: 1410 | ||
| Grand Prix Chicago 2014 (JOU standard) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 136 | Lanigan, Mike (1706) | Lost 0-2 | -141468 |
| top | record: 0-1 | new rating: 1468 | ||
| Grand Prix Richmond 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 561 | Schumacher, Zachary (1500) | Lost 0-2 | -181482 |
| top | record: 0-1 | new rating: 1482 | ||