Kato, Yoshiaki
Current rating: 1464
Record: 13-16
| Grand Prix Chiba 2019 (M20 limited) | starting rating: 1468 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 344 | Tsuruta, Tomoya (1518) | Lost 1-2 | -171451 |
| 3sealed | 588 | Shoji, Masato (1447) | Won 2-0 | +181469 |
| 4sealed | 749 | Teramoto, Tsubasa (1568) | Won 2-0 | +201489 |
| 5sealed | 297 | Tomita, Kouki (1663) | Won 2-0 | +211510 |
| 6sealed | 196 | Tanaka, Yoshiyuki 6283 (1558) | Lost 1-2 | -171493 |
| 7sealed | 418 | Takano, Kodai (1800) | Lost 0-2 | -131480 |
| 8sealed | 442 | Okajima, Kuninori (1563) | Lost 0-2 | -161464 |
| top | average opponent: 1588record: 3-4 | new rating: 1464 | ||
| Grand Prix Kyoto 2019 (RNA standard) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 447 | Tedori, Kota (1565) | Lost 1-2 | -171482 |
| 2standard | 514 | Ichikawa, Tomokazu (1581) | Lost 1-2 | -161466 |
| 3standard | 930 | Nakano, Masanori (1465) | Won 2-0 | +181484 |
| 4standard | 895 | Moriyasu, Genki (1581) | Lost 1-2 | -161468 |
| 5standard | 818 | Ozawa, Tomohiko (1476) | Lost 0-2 | -181450 |
| 6standard | 757 | Katayama, Chiharu (1464) | Won 2-1 | +181468 |
| 7standard | 607 | Yamada, Mitsuhiro (1450) | Lost 0-2 | -181450 |
| 8standard | 572 | Ito, Katsuaki (1441) | Won 2-1 | +181468 |
| top | average opponent: 1503record: 3-5 | new rating: 1468 | ||
| Grand Prix Shizuoka 2018 (standard) (GRN standard) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 235 | Takano, Kantaro (1375) | Lost 0-2 | -201481 |
| 2standard | 676 | Mizuno, Nobuyoshi (1419) | Lost 1-2 | -191462 |
| 3standard | 1057 | Kobayashi, Yuki9104 (1364) | Lost 1-2 | -201442 |
| 4standard | 1052 | Matsubara, Akifumi (1466) | Won 2-0 | +191461 |
| 5standard | 952 | Yufu, Seizi (1467) | Won 2-1 | +181479 |
| 6standard | 840 | Michibata, Tatsuya (1619) | Won 2-0 | +201499 |
| top | average opponent: 1452record: 3-3 | new rating: 1499 | ||
| Grand Prix Chiba 2018 (M19 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 688 | Hisasaka, Yuta (1500) | Won 2-0 | +181518 |
| 2sealed | 578 | Katumata, Siniti (1518) | Lost 1-2 | -181500 |
| 3sealed | 863 | Wakabayashi, Makoto (1499) | Won 2-1 | +181518 |
| 4sealed | 666 | Tobisawa, Takenori (1453) | Lost 0-2 | -191499 |
| 5sealed | 800 | Yanagidate, Ikumi (1549) | Lost 0-2 | -171482 |
| 6sealed | 802 | Tanigaki, Toshiyuki (1382) | Lost 0-2 | -201462 |
| 7sealed | 683 | Okuyama, Sanshirou (1418) | Won 2-0 | +171479 |
| 8sealed | 589 | Wu, Songwei (1718) | Won 2-0 | +221501 |
| top | average opponent: 1505record: 4-4 | new rating: 1501 | ||