Kato, Ryoichi
Current rating: 1522
Record: 10-9
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1554 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 314 | Saito, Shosuke (1558) | Lost 0-2 | -181536 |
| 2standard | 562 | Kawamura, Kazushi (1837) | Lost 1-2 | -131523 |
| 3standard | 967 | Ashizawa, Yoshisato (1400) | Won 2-0 | +161539 |
| 4standard | 889 | Shiraishi, Masaharu (1605) | Lost 1-2 | -171522 |
| average opponent: 1600record: 1-3 | new rating: 1522 | |||
| Grand Prix Kobe 2017 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 620 | Sugiyama, Takahiro (1578) | Won 2-1 | +191519 |
| 2modern | 216 | Tuzii, Syouichi (1455) | Lost 1-2 | -191500 |
| 3modern | 835 | Takeuchi, Akinari (1616) | Lost 1-2 | -161484 |
| 4modern | 1235 | Katayama, Yuuki (1468) | Won 2-1 | +181502 |
| 5modern | 928 | Suzuki, Ryuuichi (1317) | Won 2-0 | +151517 |
| 6modern | 774 | Kimura, Shunsuke (1524) | Won 2-1 | +181535 |
| 7modern | 436 | Endo, Mio (1539) | Lost 1-2 | -181517 |
| 8modern | 766 | Shikama, Hideyasu (1451) | Won 2-1 | +171534 |
| 9modern | 492 | Abe, Masao (1543) | Won 2-0 | +181552 |
| 10modern | 293 | Yamamura, Naoki (1656) | Won 2-0 | +201572 |
| 11modern | 210 | Uno, Yuki (1544) | Won 2-1 | +171589 |
| 12modern | 102 | Mihara, Yuki (1590) | Lost 1-2 | -181571 |
| 13modern | 242 | Hashimoto, Kensuke (1577) | Won 2-0 | +181589 |
| 14modern | 97 | Satou, Yuuya (1632) | Lost 1-2 | -171572 |
| 15modern | 187 | Sonomura, Yuusuke (1557) | Lost 0-2 | -181554 |
| average opponent: 1537record: 9-6 | new rating: 1554 | |||