Polschak, Yehor
Current rating: 1688
Record: 14-9-3 (GP) / 10-8 (professional)
| Grand Prix Warsaw 2013 (M14 standard) | starting rating: 1605 | |||
| round | table | opponent (rating) | result | Δrating |
| 4standard | 147 | Wiktorzak, Piotr (1516) | Won 2-0 | +161621 |
| 5standard | 61 | Kiss, Laszlo (1519) | Won 2-1 | +161637 |
| 6standard | 42 | Kapera, Krzysztof (1593) | Won 2-0 | +171654 |
| 7standard | 1 | Brandt, Sebastian (1516) | Won 2-0 | +161670 |
| 8standard | 10 | Lopez, Rodrigo (1864) | Won 2-1 | +211691 |
| 9standard | 3 | Brouwer, Jens (1616) | Lost 0-2 | -191672 |
| 10standard | 21 | Ramis Pascual, Toni (2035) | Draw 1-1 | +61678 |
| 11standard | 14 | Kirchler, Mattia (1576) | Won 2-1 | +161694 |
| 12standard | 7 | Wilmotte, Sebastien (1521) | Won 2-0 | +151709 |
| 13standard | 30 | Shenhar, Shahar (2136) | Draw 1-1 | +81717 |
| 14standard | 11 | Simonot, Timothee (1901) | Lost 1-2 | -151702 |
| 15standard | 23 | Anteri, Fabrizio (1906) | Lost 0-2 | -141688 |
| top | average opponent: 1725record: 7-3-2 | new rating: 1688 | ||
| Grand Prix Bochum 2012 (RTR standard) | starting rating: 1622 | |||
| round | table | opponent (rating) | result | Δrating |
| 4standard | 566 | Lueck, Bjoern (1574) | Won 2-0 | +171639 |
| 5standard | 539 | Frey, Alexander (1653) | Draw 1-1 | +11640 |
| 6standard | 529 | Kohl, Reinhold (1835) | Lost 1-2 | -151625 |
| 7standard | 568 | Muller, Martin (1515) | Lost 1-2 | -201605 |
| 8standard | 633 | Meyers, Vincent (1516) | Won 2-1 | +171622 |
| 9standard | 583 | Dierbach, Patrick (1678) | Lost 1-2 | -171605 |
| top | average opponent: 1628record: 2-3-1 | new rating: 1605 | ||
| Grand Prix Boston-Worcester 2012 (M13 limited) | starting rating: 1593 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 61 | Raymond, Brian (1581) | Won 2-0 | +181611 |
| 3sealed | 102 | Chadbourne, Jay H (1500) | Won 2-0 | +161627 |
| 4sealed | 182 | Mason, Sky (1537) | Won 2-0 | +161643 |
| 5sealed | 23 | Acosta, Christian (1556) | Won 2-0 | +161659 |
| 6sealed | 33 | Gregory, Wilson (1588) | Lost 0-2 | -191640 |
| 7sealed | 79 | Wilson, Jacob (1799) | Lost 1-2 | -151625 |
| 8sealed | 232 | Freedman, Gerald (1505) | Lost 0-2 | -201605 |
| 9sealed | 258 | Bresett, John (1578) | Won 2-1 | +171622 |
| top | average opponent: 1581record: 5-3 | new rating: 1622 | ||
| 2010 World Championship (mixed) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 129 | Sacher, AJ (1803) | Lost 1-2 | -131487 |
| 2standard | 94 | Kowal, Brian (1772) | Lost 0-2 | -131474 |
| 3standard | 144 | Johannsen, Dennis (1731) | Won 2-0 | +231497 |
| 4standard | 120 | Wescoe, Craig (1705) | Lost 1-2 | -141483 |
| 5standard | 135 | Marr, Mat (1589) | Lost 0-2 | -161467 |
| 6standard | 146 | Gavilano, Matheo (1460) | Won 2-0 | +181485 |
| 7draft | 86 | Lv, Jiachong (1477) | Won 2-1 | +171502 |
| 8draft | 139 | Jeong, Hyunwoo (1616) | Won 2-0 | +201522 |
| 9draft | 111 | Parez, Julien (1779) | Won 2-0 | +231545 |
| 10draft | 43 | Asahara, Akira (1870) | Lost 1-2 | -121533 |
| 11draft | 22 | Yam, Philip (1791) | Lost 1-2 | -141519 |
| 12draft | 125 | Tsai, Cheng-Lun (1508) | Lost 1-2 | -181501 |
| 13extended | 127 | Pashley, Stephen (1448) | Won 2-1 | +171518 |
| 14extended | 115 | Gregoir, Christophe (1764) | Lost 1-2 | -131505 |
| 15extended | 122 | Lindroos, Jani (1621) | Won 2-1 | +201525 |
| 16extended | 97 | van Medevoort, Robert (1866) | Won 2-0 | +241549 |
| 17extended | 72 | Kawakami, Kazuto (1775) | Won 2-1 | +221571 |
| 18extended | 74 | Yam, Philip (1797) | Won 2-1 | +221593 |
| top | average opponent: 1687record: 10-8 | new rating: 1593 | ||