Horak, Slavoj
Current rating: 1522
Record: 11-11-1
| Grand Prix Prague 2019 (UMA limited) | starting rating: 1477 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 921 | Deifel, Dominik (1500) | Won 2-0 | +181495 |
| 2sealed | 473 | Waidelich, Jacob (1520) | Lost 1-2 | -181477 |
| 3sealed | 689 | Thiemer, Florian (1630) | Won 2-0 | +211498 |
| 4sealed | 510 | Gilabert, Ignacio (1517) | Won 2-0 | +181516 |
| 5sealed | 202 | Kauf, Jamin (1741) | Won 2-0 | +221538 |
| 6sealed | 207 | Majer, Lukas (1567) | Draw 1-1 | +11539 |
| 7sealed | 218 | Haas, Julian (1575) | Lost 1-2 | -171522 |
| top | average opponent: 1578record: 4-2-1 | new rating: 1522 | ||
| Grand Prix Prague 2003 (LGN limited) | starting rating: 1490 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 116 | Laznovsky, Martin (1662) | Lost 0-2 | -151475 |
| 3sealed | 273 | Vrba, Jan (1500) | Won 2-0 | +191494 |
| 4sealed | 132 | Fabrizi, Roberto (1533) | Lost 1-2 | -171477 |
| top | average opponent: 1565record: 1-2 | new rating: 1477 | ||
| Grand Prix Warsaw 2001 (Invasion block) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 11 | Domaszewski, Krzysztof (1529) | Won 2-0 | +191484 |
| 3block | 32 | Stopinski, Piotr (1536) | Won 2-1 | +191503 |
| 4block | 13 | Marcik, Michal (1529) | Lost 1-2 | -171486 |
| 5block | 43 | Czapla, Tadeusz (1539) | Won 2-1 | +181504 |
| 6block | 23 | Jautakis, Andrius (1554) | Lost 0-2 | -171487 |
| 7block | 47 | Geerdink, Bas (1556) | Lost 1-2 | -161471 |
| 8block | 84 | Roginski, Eugene (1558) | Won 2-1 | +191490 |
| top | average opponent: 1543record: 4-3 | new rating: 1490 | ||
| Grand Prix Prague 2001 (PLS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 190 | Altrichter, Stefan (1412) | Lost 0-2 | -201480 |
| 2sealed | 261 | Piotrowski, Krzysztof (1482) | Lost 0-2 | -181462 |
| 3sealed | 248 | Pastucha, Martin (1464) | Won 2-0 | +181480 |
| 4sealed | 230 | Loos, Sebastian (1542) | Won 2-0 | +201500 |
| 5sealed | 170 | Filip, David (1501) | Lost 1-2 | -181482 |
| 6sealed | 222 | Diezel, Michael (1554) | Lost 1-2 | -171465 |
| top | average opponent: 1493record: 2-4 | new rating: 1465 | ||