Majstrik, Jan
Current rating: 1578
Record: 12-9
| Grand Prix Krakow 2019 (M20 limited) | starting rating: 1544 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 504 | Sakowski, Michal (1500) | Won 2-0 | +171561 |
| 2sealed | 286 | Jerabek, Petr (1675) | Lost 1-2 | -161545 |
| 3sealed | 326 | Laczko, Peter (1560) | Won 2-1 | +181563 |
| 4sealed | 141 | Kepinski, Michal (1551) | Lost 1-2 | -181545 |
| 5sealed | 305 | Ciach, Maciej (1497) | Won 2-1 | +171562 |
| 6sealed | 210 | Skuza, Michal (1560) | Won 2-1 | +181580 |
| 7sealed | 330 | Marek, Jan (1508) | Won 2-1 | +171597 |
| 8sealed | 240 | Szylman, Maciej (1557) | Lost 1-2 | -191578 |
| average opponent: 1551record: 5-3 | new rating: 1578 | |||
| Grand Prix Prague 2019 (UMA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 615 | Ullrich, Frank (1509) | Won 2-0 | +181518 |
| 2sealed | 494 | Marek, Krzysztof (1883) | Lost 0-2 | -111507 |
| 3sealed | 666 | Bazhenov, Eugene (1577) | Won 2-1 | +191526 |
| 4sealed | 430 | Lupalo, Kirill (1619) | Won 2-1 | +201546 |
| 5sealed | 206 | Havelka, Jakub (1643) | Won 2-1 | +191565 |
| 6sealed | 233 | Einaudi, Giacomo (1718) | Lost 0-2 | -151550 |
| 7sealed | 394 | Lindgren, Tommi (1750) | Won 2-1 | +221572 |
| 8sealed | 311 | Horlock, Rhys (1597) | Won 2-1 | +181590 |
| 9sealed | 709 | Schuetz, Stefan (2068) | Lost 0-2 | -101580 |
| 10draft | 692 | Cipriano, Davide (1556) | Won 2-1 | +181598 |
| 11draft | 707 | Krejsa, Tomas (1739) | Lost 1-2 | -161582 |
| 12draft | 653 | Lutter, Maximilian (1622) | Lost 1-2 | -171565 |
| 13draft | 655 | Piemonti, Andrea (1391) | Lost 0-2 | -211544 |
| average opponent: 1667record: 7-6 | new rating: 1544 | |||