Hahn, Jacob
Current rating: 1491
Record: 7-8
| Grand Prix Brisbane 2017 (modern) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 11 | Henry, Simon (1593) | Won 2-0 | +211488 |
| 2modern | 186 | Kettle, Samuel (1519) | Lost 0-2 | -181470 |
| 3modern | 357 | Sturiale, Giuseppe (1474) | Won 2-0 | +181488 |
| 4modern | 135 | Ferguson, Alec (1490) | Won 2-0 | +181506 |
| 5modern | 58 | Unger, Graham (1518) | Lost 0-2 | -171489 |
| 6modern | 199 | Nightingale, Jabe (1589) | Won 2-1 | +191508 |
| 7modern | 92 | Fisher, Liam (1472) | Won 2-1 | +181526 |
| 8modern | 58 | Doan, Jason [AUS] (1558) | Lost 0-2 | -181508 |
| 9modern | 122 | Sinkis, Peter (1571) | Lost 0-2 | -171491 |
| average opponent: 1532record: 5-4 | new rating: 1491 | |||
| Grand Prix Brisbane 2013 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 153 | Higgins, Glenn L (1567) | Lost 1-2 | -171483 |
| 2modern | 159 | Joyce, Nick (1481) | Won 2-1 | +181501 |
| 3modern | 113 | Lappin, Sean (1627) | Lost 0-2 | -161485 |
| 4modern | 170 | Smith, Niall (1482) | Won 2-0 | +181503 |
| 5modern | 158 | Styman, Mark (1502) | Lost 0-2 | -181485 |
| 6modern | 159 | Addie, Chris (1484) | Lost 1-2 | -181467 |
| average opponent: 1524record: 2-4 | new rating: 1467 | |||