Portnov, Ilya
Current rating: 1511
Record: 8-8
| Grand Prix Prague 2019 (UMA limited) | starting rating: 1514 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 488 | Bialek, Szymon (1556) | Lost 0-2 | -181496 |
| 2sealed | 1283 | Reischmann, Tobias (1344) | Lost 0-2 | -201476 |
| 3sealed | 1102 | Martincigh, Paolo (1463) | Lost 1-2 | -191457 |
| 4sealed | 1101 | Pucic, Tomislav (1447) | Won 2-1 | +181475 |
| 5sealed | 953 | Reisenberger, Christoph (1465) | Won 2-1 | +181493 |
| 6sealed | 791 | Brauer, Jakob (1498) | Won 2-1 | +181511 |
| 7sealed | 619 | Hooton, Edward (1501) | Lost 0-2 | -181493 |
| 8sealed | 573 | Mayer, Jurgen (1496) | Won 2-1 | +181511 |
| average opponent: 1471record: 4-4 | new rating: 1511 | |||
| Grand Prix Moscow 2014 (JOU standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 184 | Mirasov, Girfan (1500) | Lost 1-2 | -181482 |
| 2standard | 179 | Petukhov, Andrey (1573) | Lost 0-2 | -161466 |
| 3standard | 238 | Zavylenkov, Arcady (1472) | Won 2-1 | +181484 |
| 4standard | 220 | Gurin, Alexandr (1497) | Won 2-0 | +181502 |
| 5standard | 153 | Novoselova, Olga (1498) | Won 2-0 | +181520 |
| 6standard | 114 | Telipko, Sergey (1801) | Won 2-0 | +231543 |
| 7standard | 46 | Averyanov, Sergey (1503) | Lost 0-2 | -191524 |
| 8standard | 118 | Pinto, Goncalo (1960) | Lost 1-2 | -101514 |
| average opponent: 1601record: 4-4 | new rating: 1514 | |||