Grabiec, Marek
Current rating: 1511
Record: 3-3
| Grand Prix Prague 2019 (UMA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1143 | Treacy-Mcgee, Sam (1464) | Won 2-0 | +171517 |
| 2sealed | 794 | Aidla, Markus (1539) | Won 2-0 | +191536 |
| 3sealed | 521 | Papadopoulos, Panagiotis (2028) | Won 2-0 | +261562 |
| 4sealed | 111 | Hanik, Tomasz (1621) | Lost 1-2 | -171545 |
| 5sealed | 361 | Marinuzzi, Lorenzo (1661) | Lost 0-2 | -161529 |
| 6sealed | 466 | Christensen, Jon Magnus (1537) | Lost 0-2 | -181511 |
| average opponent: 1642record: 3-3 | new rating: 1511 | |||