Viernickel, Merlin
Current rating: 1552
Record: 5-3
| Grand Prix Prague 2019 (UMA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1042 | Raia, Michael (1514) | Won 2-0 | +181518 |
| 2sealed | 545 | Oliferchuk, Dmitrii (1519) | Won 2-0 | +181536 |
| 3sealed | 174 | Giroud, Pierre (1455) | Won 2-0 | +171553 |
| 4sealed | 238 | Neirynck, Branco (1860) | Lost 1-2 | -131540 |
| 5sealed | 397 | Hauck, Christian (1905) | Won 2-1 | +251565 |
| 6sealed | 158 | Boudaoud, Hakim (1811) | Lost 1-2 | -141551 |
| 7sealed | 294 | Bernhardt, Lorena (1392) | Won 2-0 | +151566 |
| 8sealed | 326 | Wiesen, Ardijan (1759) | Lost 0-2 | -141552 |
| average opponent: 1652record: 5-3 | new rating: 1552 | |||