Stumpf, Martin
Current rating: 1522
Record: 9-8-1
| Grand Prix Bochum 2012 (RTR standard) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 784 | Driessen, Paul J (1483) | Won 2-1 | +181499 |
| 2standard | 560 | Januchowski, Fabian (1553) | Draw 1-1 | +11500 |
| 3standard | 652 | Fangerow, Steve (1482) | Lost 0-1 | -191481 |
| 4standard | 771 | Svarrer, Soren (1500) | Won 2-1 | +191500 |
| 5standard | 692 | Mcelhiney, Jean (1523) | Won 2-0 | +181518 |
| 6standard | 633 | Scherpenzeel, Dennis (1576) | Won 2-0 | +191537 |
| 7standard | 566 | Posoiu, Mircea Adrian (1694) | Won 2-0 | +211558 |
| 8standard | 547 | Frey, Alexander (1655) | Lost 0-2 | -161542 |
| 9standard | 589 | Vornhusen, Gunnar (1427) | Lost 0-2 | -201522 |
| average opponent: 1544record: 5-3-1 | new rating: 1522 | |||
| Grand Prix Brussels 2010 (WWK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 159 | Thielen, Sjors (1500) | Lost 0-2 | -181482 |
| 2standard | 332 | Jambon, Bart (1481) | Won 2-0 | +181500 |
| 3standard | 290 | Nikolic, Isidor (1448) | Won 2-0 | +171517 |
| 4standard | 200 | Le Bot, Philippe (1577) | Lost 0-2 | -171500 |
| 5standard | 238 | Bilek, Tomas (1497) | Lost 0-2 | -181482 |
| 6standard | 252 | Desprez, Damien (1482) | Lost 1-2 | -181464 |
| 7standard | 244 | van der Sanden, Dick (1419) | Won 2-0 | +171481 |
| 8standard | 179 | Habelmann, Christoph (1485) | Won 2-1 | +181499 |
| 9standard | 136 | Legros, Yoann (1470) | Lost 0-2 | -181481 |
| average opponent: 1484record: 4-5 | new rating: 1481 | |||