Jakubec, Stepan
Current rating: 1556
Record: 16-15-1
| Grand Prix Krakow 2019 (M20 limited) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 487 | Essnert, Joakim (1500) | Won 2-0 | +181536 |
| 2sealed | 379 | Smy, Reuben (1364) | Lost 0-2 | -211515 |
| 3sealed | 410 | Szura, Robert (1502) | Lost 0-2 | -181497 |
| 4sealed | 396 | Ziemba, Lukasz (1511) | Won 2-1 | +181515 |
| 5sealed | 291 | Oren, Ask Espensonn (1569) | Won 2-1 | +191534 |
| 6sealed | 238 | Vesaoja, Eero (1809) | Won 2-1 | +231557 |
| 7sealed | 285 | Wittig, Thorsten (1505) | Won 2-0 | +171574 |
| 8sealed | 242 | Mosna, Karol (1604) | Lost 1-2 | -181556 |
| top | average opponent: 1546record: 5-3 | new rating: 1556 | ||
| Grand Prix Warsaw 2018 (GRN limited) | starting rating: 1512 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 130 | Sanchez Lopez, Alvaro (1840) | Won 2-0 | +241536 |
| 2sealed | 352 | Lindhoudt, Florian (1559) | Lost 0-2 | -181518 |
| 3sealed | 543 | Gross, Moritz (1638) | Lost 0-2 | -151503 |
| 4sealed | 813 | Ross, Anton (1486) | Won 2-0 | +171520 |
| 5sealed | 551 | Navickas, Stanislovas (1344) | Won 2-1 | +151535 |
| 6sealed | 466 | Baroni, Stefano (1597) | Lost 0-2 | -171518 |
| top | average opponent: 1577record: 3-3 | new rating: 1518 | ||
| Grand Prix Prague 2011 (NPH limited) | starting rating: 1511 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 41 | Teloken, Jonny (1589) | Draw 1-1 | +21513 |
| 5sealed | 39 | Knapova, Dominika (1539) | Won 2-0 | +181531 |
| 6sealed | 19 | Varaksin, Aleksey (1597) | Won 2-0 | +191550 |
| 7sealed | 10 | Halga, Bogdan (1624) | Lost 0-2 | -161534 |
| 8sealed | 30 | Zieba, Jakub (1585) | Won 2-0 | +191553 |
| 9sealed | 18 | Tassinari, Luca (1592) | Won 2-0 | +181571 |
| 10draft | 52 | Le Briand, Loic (1810) | Lost 0-2 | -131558 |
| 11draft | 2 | Babych, Iurii (1667) | Lost 0-2 | -161542 |
| 12draft | 1 | Halga, Bogdan (1608) | Won 2-0 | +191561 |
| 13draft | 8 | Bakkehaug, Christian (1637) | Lost 0-2 | -171544 |
| 14draft | 40 | Wall, Oskar (1606) | Lost 0-2 | -171527 |
| 15draft | 17 | Ton, Jonathan (1695) | Lost 0-2 | -151512 |
| top | average opponent: 1629record: 5-6-1 | new rating: 1512 | ||
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 596 | Kempf, Bastian (1543) | Lost 1-2 | -171483 |
| 5sealed | 564 | Hermann, Manfred (1651) | Won 2-0 | +211504 |
| 6sealed | 554 | Szegho, Dalibor (1689) | Lost 0-2 | -151489 |
| 7sealed | 605 | Chernobryvchenko, Mikhail (1494) | Won 2-1 | +181507 |
| 8sealed | 581 | Sappl, Josef (1643) | Lost 1-2 | -151492 |
| 9sealed | 605 | Hinrichs, Christoph (1574) | Won 2-0 | +191511 |
| top | average opponent: 1599record: 3-3 | new rating: 1511 | ||