Kato, Tomonori
Current rating: 1303
| Grand Prix Yokohama 2019 (modern) | starting rating: 1315 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 265 | Nishimoto, Yuu (1500) | Lost 0-2 | -141301 |
| 2modern | 936 | Tsukuda, Kenta (1482) | Lost 1-2 | -151286 |
| 3modern | 1068 | Koizumi, Hiroki (1433) | Lost 0-2 | -151271 |
| 4modern | 1137 | Hirata, Yoshihisa (1433) | Won 2-1 | +211292 |
| 5modern | 1074 | Hayakawa, Tomoyuki (1460) | Won 2-0 | +211313 |
| 6modern | 883 | Sugawa, Yousuke (1462) | Lost 0-2 | -161297 |
| 7modern | 757 | Takehana, Haruka (1460) | Lost 1-2 | -151282 |
| 8modern | 691 | Aizu, Hiroto (1442) | Won 2-0 | +211303 |
| top | average opponent: 1459record: 3-5 | new rating: 1303 | ||
| Grand Prix Kobe 2017 (modern) | starting rating: 1410 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 702 | Taka, Norihisa (1511) | Lost 1-2 | -171393 |
| 2modern | 796 | Kishita, Kengo (1397) | Lost 1-2 | -181375 |
| 3modern | 1182 | Kuwahara, Kensuke (1466) | Lost 0-2 | -161359 |
| 4modern | 1261 | Kubota, Koki (1409) | Lost 0-2 | -171342 |
| 5modern | 1280 | Andou, Koutarou (1554) | Draw 1-1 | +41346 |
| 6modern | 1209 | Ejiri, Keisuke (1444) | Lost 0-2 | -161330 |
| 7modern | 1115 | Pramanpol, Teedanai (1396) | Won 2-0 | +191349 |
| 8modern | 956 | Katayama, Yoshimi (1413) | Lost 1-2 | -171332 |
| 9modern | 852 | Mune, Kata (1407) | Lost 0-2 | -171315 |
| top | average opponent: 1444record: 1-7-1 | new rating: 1315 | ||
| Grand Prix Kobe 2014 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 275 | Maeda, Kaname (1500) | Lost 1-2 | -181482 |
| 2modern | 362 | Oda, Ryota (1482) | Lost 0-2 | -181464 |
| 3modern | 505 | Ito, Hajime (1479) | Lost 0-2 | -181446 |
| 4modern | 546 | Komizo, Kouichi (1449) | Lost 1-2 | -181428 |
| 5modern | 516 | Matsubara, Tadashi (1424) | Won 2-0 | +181446 |
| 6modern | 479 | Mizuno, Shiori (1444) | Lost 0-2 | -181428 |
| 7modern | 410 | Tanaka, Daiki (1376) | Lost 0-2 | -191409 |
| 8modern | 340 | Shindo, Yoshiya (1386) | Won 2-1 | +181427 |
| 9modern | 291 | Suzuki, Ryuuichi (1467) | Lost 0-2 | -171410 |
| top | average opponent: 1445record: 2-7 | new rating: 1410 | ||