Grundler, Stefan
Current rating: 1523
Record: 6-5
| Grand Prix Bochum 2010 (SOM limited) | starting rating: 1462 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 660 | Herre, Roman (1500) | Won 2-0 | +191481 |
| 2sealed | 564 | Matas, Ivan (1482) | Lost 0-2 | -181463 |
| 3sealed | 651 | Hottmann, Alex (1535) | Won 2-0 | +191482 |
| 4sealed | 763 | Paulmaier, Benjamin (1591) | Won 2-1 | +201502 |
| 5sealed | 684 | Deslandes, Dan-Xavier (1474) | Won 2-1 | +181520 |
| 6sealed | 551 | Possemiers, Ben (1669) | Lost 1-2 | -161504 |
| 7sealed | 611 | Box, Jesper (1538) | Won 2-0 | +191523 |
| average opponent: 1541record: 5-2 | new rating: 1523 | |||
| Grand Prix Hanover 2009 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 125 | Kempf, Bastian (1461) | Lost 1-2 | -191481 |
| 2extended | 138 | Nolting, Florian (1482) | Lost 1-2 | -181463 |
| 3extended | 179 | Sablatura, Tom (1464) | Won 2-1 | +181481 |
| 4extended | 202 | Brandt, Sebastian (1413) | Lost 0-0 | -191462 |
| average opponent: 1455record: 1-3 | new rating: 1462 | |||