Horka, Marek
Current rating: 1573
Record: 9-6
| Grand Prix Krakow 2015 (DTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 232 | Gladysz, Adrian (1500) | Lost 1-2 | -181482 |
| 2standard | 299 | Kupinski, Krzysztof (1630) | Won 2-1 | +211503 |
| 3standard | 434 | Zorzi, Giulio (1724) | Won 2-0 | +221525 |
| 4standard | 324 | Mrso, Filip (1500) | Won 2-0 | +171542 |
| 5standard | 227 | Oberbek, Przemyslaw (1752) | Lost 1-2 | -141528 |
| 6standard | 236 | Verheesen, Rene (1440) | Won 2-1 | +161544 |
| 7standard | 202 | Polok, Przemyslaw (1513) | Won 2-1 | +181562 |
| 8standard | 106 | van Dalen, Marvin (1573) | Won 2-0 | +181580 |
| 9standard | 120 | Marczewski, Grzegorz (1567) | Won 2-1 | +181598 |
| 10standard | 59 | Del Nero, Stefano (1776) | Lost 1-2 | -151583 |
| 11standard | 39 | Wall, Oskar (1781) | Lost 1-2 | -141569 |
| 12standard | 50 | Swords, Chester (1724) | Won 2-1 | +201589 |
| 13standard | 55 | Semkin, Alexander (1792) | Lost 0-2 | -141575 |
| 14standard | 63 | Gregor, Robert (1548) | Lost 1-2 | -181557 |
| 15standard | 67 | Zalwowski, Mariusz (1492) | Won 2-0 | +161573 |
| average opponent: 1621record: 9-6 | new rating: 1573 | |||