Vastek, Stefan
Current rating: 1482
Record: 5-6-1
| Grand Prix Minneapolis 2014 (modern) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 218 | Silas, David (1500) | Won 2-0 | +181517 |
| 2modern | 324 | Kreutzer, Jordan (1529) | Won 2-0 | +181535 |
| 3modern | 205 | Hunter, Michael (1561) | Lost 0-2 | -171518 |
| 4modern | 525 | Burns, Jonathan (1539) | Lost 1-2 | -181500 |
| 5modern | 688 | Lafrombois, Mike (1506) | Lost 1-2 | -181482 |
| average opponent: 1527record: 2-3 | new rating: 1482 | |||
| Grand Prix Washington DC 2010 (ROE standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 129 | Alberty, Giovanni (1500) | Won 2-0 | +181518 |
| 2standard | 107 | Beach, Harrison (1518) | Lost 1-2 | -181500 |
| 3standard | 323 | Nicoll, Aaron (1500) | Draw 1-1 | 01500 |
| 4standard | 285 | Robek, Bryan (1445) | Won 2-0 | +171517 |
| 5standard | 195 | Vazquez, Kristian (1519) | Won 2-1 | +181535 |
| 6standard | 134 | Shi, Joseph (1535) | Lost 0-2 | -181517 |
| 7standard | 196 | Alaimo, Sergio (1521) | Lost 0-2 | -181499 |
| average opponent: 1505record: 3-3-1 | new rating: 1499 | |||