Yuzo Sumiyoshi, Ivan
Current rating: 1705 (#6206)
| Grand Prix Nagoya 2019 (ELD standard) | starting rating: 1614 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 416 | Shimura, Yasuhiko (1358) | Won 2-1 | +131627 |
| 4standard | 170 | Nakashima, Jun (1522) | Won 2-0 | +161643 |
| 5standard | 10 | Sakano, Ippei (1584) | Lost 0-2 | -191624 |
| 6standard | 105 | Wakita, Tomoyuki (1751) | Won 2-1 | +211645 |
| 7standard | 138 | Viraseranee, Pakkapong (1500) | Lost 0-2 | -211624 |
| 8standard | 190 | Tazawa, Takatoshi (1412) | Won 2-1 | +141638 |
| 9standard | 148 | Kobayashi, Ryohei (1712) | Won 2-1 | +201658 |
| 10standard | 74 | Odachi, Takuhei (1651) | Won 2-1 | +171675 |
| 11standard | 27 | Suzuki, Kazuhiro 4218 (1693) | Lost 1-2 | -171658 |
| 12standard | 97 | Lee, Shi Tian (2069) | Lost 0-2 | -111647 |
| 13standard | 97 | Furukawa, Shun1524 (1570) | Won 2-1 | +171664 |
| 14standard | 88 | Ishijima, Kazuya (1764) | Won 2-1 | +191683 |
| 15standard | 52 | Okai, Toshiki (1874) | Won 2-1 | +221705 |
| top | average opponent: 1651record: 9-4 | new rating: 1705 | ||
| Grand Prix Porto Alegre 2017 (AER standard) | starting rating: 1539 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 60 | Saur, Vitor (1500) | Won 2-0 | +181557 |
| 4standard | 60 | Morelli, Marcos Eduardo (1524) | Won 2-1 | +171574 |
| 5standard | 10 | de Jesus Freitas, Marcos Paulo (1946) | Won 2-1 | +241598 |
| 6standard | 5 | Laurindo, Victor (1553) | Won 2-0 | +181616 |
| 7standard | 5 | De Nicola, Nicolas (1982) | Lost 0-2 | -121604 |
| 8standard | 16 | Muller, Bruno (1773) | Won 2-0 | +211625 |
| 9standard | 15 | Borges, Eduardo (1909) | Lost 0-2 | -131612 |
| 10standard | 30 | Crusius, Matheus (1676) | Lost 1-2 | -171595 |
| 11standard | 58 | Ferreira Pacheco, Filipe (1573) | Won 2-0 | +181613 |
| 12standard | 27 | Viana, Giancarlo (1597) | Won 2-1 | +181631 |
| 13standard | 13 | Soares Neto, Carlos de Salles (1639) | Lost 0-2 | -181613 |
| 14standard | 36 | Barros, Victor (1643) | Won 2-0 | +181631 |
| 15standard | 16 | Rossello Lima, Luis Felippe (1669) | Lost 0-2 | -171614 |
| top | average opponent: 1691record: 8-5 | new rating: 1614 | ||
| Grand Prix Sao Paulo 2015 (DTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 286 | Lima, Alisson (1468) | Lost 1-2 | -191481 |
| 3standard | 286 | Luiz Freitas de Sousa, (1500) | Won 2-0 | +191500 |
| 4standard | 290 | Otsuki Kataoka, Ricard (1501) | Lost 1-2 | -181482 |
| 5standard | 460 | Concimo, Joao (1499) | Won 2-0 | +181500 |
| 6standard | 339 | Sales Galvao de Figuei, (1518) | Lost 0-2 | -181482 |
| 7standard | 283 | Gaete Quezada, Daniel (1604) | Won 2-0 | +211503 |
| 8standard | 239 | Yamamoto Inoue, Marcel (1521) | Won 2-0 | +181521 |
| 9standard | 134 | Hari Candido Lima, Nai (1539) | Won 2-1 | +181539 |
| top | average opponent: 1519record: 5-3 | new rating: 1539 | ||