Marcin, Erhard
Current rating: 1545
Record: 5-3
| Grand Prix Krakow 2015 (DTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 132 | Takagi, Piotr (1513) | Lost 0-2 | -181482 |
| 2standard | 281 | Milewicz, Mateusz (1565) | Won 2-1 | +201502 |
| 3standard | 369 | BRZOSTOWSKI, MARIUSZ (1503) | Won 2-0 | +181520 |
| 4standard | 199 | Zasadzki, Grzegorz (1525) | Won 2-1 | +181538 |
| 5standard | 194 | Janeczek, Jakub (1624) | Won 2-1 | +191557 |
| 6standard | 160 | Leskovsek, Svarun (1598) | Won 2-0 | +191576 |
| 7standard | 50 | Alkio, Anssi (1870) | Lost 1-2 | -131563 |
| 8standard | 316 | Kepinski, Michal (1556) | Lost 1-2 | -181545 |
| average opponent: 1594record: 5-3 | new rating: 1545 | |||