Wynberg, Jacob
Current rating: 1687
| Grand Prix Sydney 2019 (RNA limited) | starting rating: 1683 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 159 | Burton, Ian (1481) | Lost 0-2 | -221661 |
| 2sealed | 171 | Pradana, Frans (1481) | Won 2-0 | +151676 |
| 3sealed | 185 | Young, Robert [AUS] (1505) | Won 2-0 | +151691 |
| 4sealed | 102 | Kopp, Joshua (1486) | Draw 1-1 | -41687 |
| 5sealed | 106 | Burnside, Matthew (1608) | Won 2-0 | +171704 |
| 6sealed | 67 | Swords, Chester (1797) | Lost 0-2 | -171687 |
| top | average opponent: 1560record: 3-2-1 | new rating: 1687 | ||
| Grand Prix Sydney 2016 (EMN limited) | starting rating: 1592 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 247 | Emery, Chris (1526) | Lost 0-2 | -191573 |
| 2sealed | 294 | Vos, Katherine (1355) | Won 2-1 | +141587 |
| 3sealed | 319 | Oliver-Conroy, Christopher (1515) | Won 2-1 | +171604 |
| 4sealed | 227 | Versluis, Rob (1561) | Won 2-0 | +171621 |
| 5sealed | 206 | Froehlich, Eric (2004) | Lost 0-2 | -121609 |
| 6sealed | 309 | Eastgate, Nathan (1441) | Lost 1-2 | -211588 |
| 7sealed | 308 | Kong, Jeffrey (1489) | Won 2-1 | +171605 |
| 8sealed | 275 | Calcano, Christian (1907) | Won 2-0 | +231628 |
| 9sealed | 196 | Bojanovic, Boris (1567) | Won 2-0 | +171645 |
| 10draft | 130 | Kuprys, Pranas (1526) | Lost 1-2 | -201625 |
| 11draft | 74 | Hearn, Michael (1565) | Won 2-0 | +171642 |
| 12draft | 154 | Garnham, Matthew (1604) | Won 2-0 | +171659 |
| 13draft | 101 | Carson, Matt (1580) | Lost 1-2 | -201639 |
| 14draft | 80 | Feng, Tony (1616) | Won 2-0 | +181657 |
| 15draft | 121 | Kumagai, Riku (2116) | Won 2-1 | +261683 |
| top | average opponent: 1625record: 10-5 | new rating: 1683 | ||
| Grand Prix Sydney 2015 (BFZ limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 341 | Huang, Josh (1469) | Won 2-0 | +171517 |
| 2sealed | 212 | Powell, David (1498) | Won 2-1 | +181535 |
| 3sealed | 66 | Tilden, Douglas (1552) | Lost 1-2 | -181517 |
| 4sealed | 109 | Sickelmore, Graeme (1522) | Won 2-1 | +181535 |
| 5sealed | 95 | Bone, Aaron (1540) | Won 2-0 | +191554 |
| 6sealed | 32 | Giang, Nathan (1623) | Lost 0-2 | -171537 |
| 7sealed | 119 | Farrell, Clinton (1539) | Won 2-0 | +181555 |
| 8sealed | 96 | He, Kerr (1455) | Won 2-1 | +161571 |
| 9sealed | 63 | Li, James [AUS] (1581) | Won 2-0 | +181589 |
| 10draft | 18 | Schooth, Adrian (1565) | Won 2-0 | +181607 |
| 11draft | 8 | Hare, Matthew (1640) | Won 2-0 | +181625 |
| 12draft | 33 | Fraser, Oliver (1620) | Lost 1-2 | -181607 |
| 13draft | 37 | Ames, William (1562) | Lost 1-2 | -191588 |
| 14draft | 26 | Lee, Charles (1647) | Won 2-0 | +201608 |
| 15draft | 33 | Yu, Fengtian (1738) | Lost 0-2 | -161592 |
| top | average opponent: 1570record: 10-5 | new rating: 1592 | ||