Zvolanek, Petr
Current rating: 1483
Record: 14-15-1
| Grand Prix Prague 2019 (UMA limited) | starting rating: 1505 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1155 | Merlet, Cedric (1403) | Lost 0-2 | -201485 |
| 2sealed | 1222 | Gartner, Peter (1280) | Lost 1-2 | -211464 |
| 3sealed | 1101 | Berthod, Jeremie (1529) | Lost 1-2 | -171447 |
| 4sealed | 1141 | Medolago, Diego (1444) | Won 2-1 | +181465 |
| 5sealed | 975 | Matzke, Tim (1469) | Won 2-0 | +181483 |
| top | average opponent: 1425record: 2-3 | new rating: 1483 | ||
| Grand Prix Indianapolis 2012 (legacy) | starting rating: 1507 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 178 | Yanchick, Jerome (1478) | Won 2-0 | +171524 |
| 2legacy | 72 | Mapes, Ben J (1518) | Draw 1-1 | 01524 |
| 3legacy | 220 | Green, Phillip A (1483) | Won 2-1 | +171541 |
| 4legacy | 180 | Krohlow, Sam J (1535) | Lost 0-2 | -181523 |
| 5legacy | 289 | Elwell, Aaron (1516) | Won 1-0 | +181541 |
| 6legacy | 180 | Sondag, Brian (1547) | Lost 0-2 | -181523 |
| 7legacy | 275 | Palmateer, Eric (1518) | Lost 0-2 | -181505 |
| top | average opponent: 1514record: 3-3-1 | new rating: 1505 | ||
| Grand Prix Lincoln 2012 (modern) | starting rating: 1525 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 26 | Boatwright, Steve (1500) | Lost 1-2 | -181507 |
| 2modern | 228 | Barber, Mountain Y (1487) | Lost 1-2 | -181489 |
| 3modern | 279 | Potts, Doug (1538) | Won 2-1 | +181507 |
| 4modern | 273 | Jeansonne, Johnathan J (1484) | Won 2-0 | +181525 |
| 5modern | 205 | Weber, Brian (1479) | Lost 0-2 | -191506 |
| 6modern | 249 | Hall, Jason (1430) | Won 2-1 | +171523 |
| 7modern | 180 | Gray, Corbett (1732) | Won 2-1 | +221545 |
| 8modern | 144 | Carlson, Matt (1487) | Lost 0-2 | -191526 |
| 9modern | 129 | Embry, Colby D (1485) | Lost 0-2 | -191507 |
| top | average opponent: 1514record: 4-5 | new rating: 1507 | ||
| Grand Prix Prague 2011 (NPH limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 137 | Sturala, Filip (1500) | Won 2-0 | +181518 |
| 2sealed | 114 | Opl, Thomas (1462) | Won 2-1 | +171535 |
| 3sealed | 3 | Severin, Thoralf (1843) | Won 2-0 | +231558 |
| 4sealed | 59 | Steiner, Stefan (1684) | Lost 1-2 | -151543 |
| 5sealed | 67 | Pechacek, Vladimir (1594) | Won 2-0 | +191562 |
| 6sealed | 51 | Heruth, Martin (1554) | Lost 1-2 | -181544 |
| 7sealed | 109 | Stejskal, Jindrich (1537) | Won 2-1 | +171561 |
| 8sealed | 68 | Schrotter, Gabriel (1519) | Lost 0-2 | -181543 |
| 9sealed | 69 | Matthies, Mario (1584) | Lost 0-2 | -181525 |
| top | average opponent: 1586record: 5-4 | new rating: 1525 | ||