Yamaguchi, Tatsuya
Current rating: 1451
Record: 2-5-1
| Grand Prix Yokohama 2019 (modern) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 163 | Endo, Yuki (1458) | Won 2-0 | +171480 |
| 2modern | 469 | Suzuki, Kazuhiro 4218 (1478) | Lost 0-2 | -181462 |
| 3modern | 738 | Kitagawa, Yuta (1655) | Lost 0-2 | -141448 |
| 4modern | 958 | Takada, Narumasa (1511) | Won 2-0 | +191467 |
| 5modern | 737 | Sugisawa, Tsuyoshi (1579) | Lost 0-2 | -161451 |
| average opponent: 1536record: 2-3 | new rating: 1451 | |||
| Grand Prix Chiba 2015 (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 936 | Ike, Yasuhiro (1500) | Draw 1-1 | 01500 |
| 2sealed | 1233 | Andou, Tomoyuki (1417) | Lost 0-2 | -201480 |
| 3sealed | 1288 | Nisiguti, Sunao (1484) | Lost 0-2 | -171463 |
| average opponent: 1467record: 0-2-1 | new rating: 1463 | |||