Sato, Tatsumi
Current rating: 1579
Record: 12-8
| Grand Prix Nagoya 2020 (pioneer) | starting rating: 1598 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 240 | Yoshimura, Takuya (1500) | Lost 0-2 | -201578 |
| 2pioneer | 544 | Iwasaki, Masayuki (1548) | Won 2-1 | +181596 |
| 3pioneer | 678 | Suzuki, Yuta (1409) | Won 2-1 | +141610 |
| 4pioneer | 447 | Saruta, Katsumi (1667) | Lost 0-2 | -171593 |
| 5pioneer | 522 | Kometani, Yuki (1823) | Lost 0-2 | -141579 |
| average opponent: 1589record: 2-3 | new rating: 1579 | |||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 39 | Seno, Takeshi (1459) | Won 2-0 | +171517 |
| 2modern | 274 | Hiroi, Yuta (1458) | Won 2-0 | +171534 |
| 3modern | 22 | Saeki, Tomoya (1413) | Won 2-1 | +161550 |
| 4modern | 120 | Takahashi, Kenji (1614) | Won 2-1 | +191569 |
| 5modern | 113 | Suzuki, Ryo (1699) | Won 2-1 | +201589 |
| 6modern | 46 | Higaki, Motohide (1548) | Lost 1-2 | -181571 |
| 7modern | 79 | Takayanagi, Kenichi (1507) | Won 2-1 | +171588 |
| 8modern | 38 | Ou, Kaitou (1764) | Lost 1-2 | -151573 |
| 9modern | 76 | Egeyama, Tomoki (1535) | Won 2-1 | +171590 |
| 10modern | 135 | Kyogoku, Kyosuke (1702) | Lost 0-2 | -161574 |
| 11modern | 164 | Naitou, Yohei (1577) | Won 2-1 | +181592 |
| 12modern | 94 | Kawasoe, Shintaro (1665) | Won 2-0 | +191611 |
| 13modern | 86 | Fukumoto, Hiroaki (1721) | Lost 1-2 | -161595 |
| 14modern | 105 | Kageyama, Hiroki (1721) | Won 2-0 | +211616 |
| 15modern | 84 | Yamada, Junki (1622) | Lost 1-2 | -181598 |
| average opponent: 1600record: 10-5 | new rating: 1598 | |||