Biermann, Jack
Current rating: 1576
| Grand Prix Sydney 2019 (RNA limited) | starting rating: 1488 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 92 | Burnett, Matthew (1537) | Won 2-1 | +191507 |
| 3sealed | 55 | Gibson, Kyle (1515) | Won 2-1 | +181525 |
| 4sealed | 44 | Sclauzero, Joseph (1845) | Won 2-1 | +241549 |
| 5sealed | 19 | Tolonen, Lewis (1576) | Draw 1-1 | 01549 |
| 6sealed | 15 | Tudman, Ben (1745) | Won 2-0 | +221571 |
| 7sealed | 7 | Sornphiphatphong, Chanond (1588) | Won 2-1 | +181589 |
| 8sealed | 5 | Willingham, Jesse (1600) | Won 2-0 | +181607 |
| 9sealed | 3 | Estephan, Jessica (1597) | Lost 0-2 | -181589 |
| 10draft | 45 | Hanrahan, Dylan (1709) | Won 2-0 | +201609 |
| 11draft | 24 | Bandas, Jim (1760) | Won 2-1 | +211630 |
| 12draft | 41 | Pathirana, Prads (2117) | Lost 0-2 | -101620 |
| 13draft | 13 | Z, Dominic (1917) | Lost 0-2 | -131607 |
| 14draft | 29 | Bandas, Jim (1745) | Lost 0-2 | -151592 |
| 15draft | 37 | Rowe, Daniel (1698) | Lost 1-2 | -161576 |
| top | average opponent: 1711record: 8-5-1 | new rating: 1576 | ||
| Grand Prix Melbourne 2018 (GRN limited) | starting rating: 1487 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 126 | Harris, Colin (1792) | Lost 1-2 | -121475 |
| 4sealed | 142 | Cameron, Maitland (1882) | Won 2-1 | +251500 |
| 5sealed | 116 | Davey, Ryan (1721) | Won 2-0 | +221522 |
| 6sealed | 37 | Markovic, Sasha (1597) | Lost 1-2 | -171505 |
| 7sealed | 109 | Wei, Chengyi (1560) | Lost 1-2 | -171488 |
| top | average opponent: 1711record: 2-3 | new rating: 1488 | ||
| Grand Prix Sydney 2016 (EMN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 123 | Andrews, Josh (1484) | Lost 0-2 | -181482 |
| 2sealed | 296 | Swiegelaar, James (1482) | Draw 1-1 | 01482 |
| 3sealed | 389 | Magoc, Ivan (1601) | Won 2-0 | +201502 |
| 4sealed | 347 | Wang, Xiangyu (1467) | Won 2-0 | +171519 |
| 5sealed | 256 | Goertzen, Dominik (1713) | Lost 0-2 | -141505 |
| 6sealed | 318 | Mac, Steven (1534) | Lost 0-2 | -181487 |
| top | average opponent: 1547record: 2-3-1 | new rating: 1487 | ||