Ermen, Jonas
Current rating: 1491
Record: 5-6
| Grand Prix Auckland 2008 (ALA limited) | starting rating: 1470 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 3 | Mathews, Thomas M (1500) | Won 2-0 | +191489 |
| 2sealed | 25 | Laycock, Kerel (1465) | Lost 0-2 | -181471 |
| 3sealed | 56 | Shepherd, Kim M (1500) | Won 2-1 | +181489 |
| 4sealed | 45 | Chonka, Dwaine (1439) | Lost 1-2 | -191470 |
| 5sealed | 62 | Reeve, John (1501) | Won 2-0 | +191489 |
| 6sealed | 82 | Burrows, Christopher (1518) | Won 2-0 | +181507 |
| 7sealed | 52 | Griffin, Matthew [NZL] (1586) | Lost 1-2 | -161491 |
| average opponent: 1501record: 4-3 | new rating: 1491 | |||
| Grand Prix Stuttgart 2007 (LRW limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 119 | Rasir, Tobias (1771) | Lost 1-2 | -131487 |
| 3sealed | 184 | Ullrich, Frank (1524) | Lost 1-2 | -171470 |
| 4sealed | 253 | Gerstenhofer, Tim (1482) | Lost 1-2 | -181452 |
| 5sealed | 266 | Hild, Greg (1491) | Won 2-0 | +181470 |
| average opponent: 1567record: 1-3 | new rating: 1470 | |||