Mach, Zdenek
Current rating: 1533
Record: 13-12
| Grand Prix Bologna 2005 (SOK limited) | starting rating: 1513 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 75 | Saviori, Fulvio (1621) | Lost 0-2 | -161497 |
| 2sealed | 250 | Sola, Angel (1481) | Won 2-1 | +181515 |
| 3sealed | 238 | Henot, David (1502) | Won 2-1 | +181533 |
| top | average opponent: 1535record: 2-1 | new rating: 1533 | ||
| Grand Prix Vienna 2004 (COK limited) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 276 | Wakuluk, Pawel (1541) | Lost 1-2 | -181500 |
| 2sealed | 284 | Galambos, Szabolcs (1429) | Won 2-1 | +171517 |
| 3sealed | 219 | Widuch, Piotr (1420) | Lost 0-2 | -201497 |
| 4sealed | 366 | Guzei, Vlad (1481) | Won 2-0 | +181515 |
| 5sealed | 223 | Nagy, Zoltan (1438) | Lost 0-2 | -191496 |
| 6sealed | 341 | Dukic, Mirko (1479) | Won 2-0 | +171513 |
| top | average opponent: 1465record: 3-3 | new rating: 1513 | ||
| Grand Prix Zurich 2004 (Mirrodin block) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 146 | Blum, Damien (1499) | Won 2-0 | +191486 |
| 2block | 149 | Bohringer, Steffen (1530) | Won 2-0 | +191505 |
| 3block | 27 | Pontonnier, Julien (1589) | Won 2-1 | +191524 |
| 4block | 19 | Urbanec, Jan (1513) | Lost 1-2 | -181506 |
| 5block | 60 | Duvoisin, Eric (1477) | Lost 0-2 | -181488 |
| 6block | 105 | Nassif, Gabriel (1996) | Won 2-0 | +261514 |
| 7block | 66 | Belin, Alexandre (1750) | Lost 1-2 | -141500 |
| 8block | 88 | Kunz, Markus (1476) | Won 2-0 | +181518 |
| top | average opponent: 1604record: 5-3 | new rating: 1518 | ||
| Grand Prix Munich 2003 (MRD limited) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 152 | Jehl, Marc-Andre (1500) | Won 2-0 | +181500 |
| 2sealed | 246 | Pech, Rene (1641) | Lost 1-2 | -151485 |
| 3sealed | 297 | Avsec, Anze (1515) | Lost 0-2 | -181467 |
| top | average opponent: 1552record: 1-2 | new rating: 1467 | ||
| Grand Prix Prague 2003 (LGN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 70 | Goertzen, Simon (1443) | Won 2-0 | +171517 |
| 2sealed | 71 | Zoubal, Frantisek (1483) | Lost 1-2 | -191498 |
| 3sealed | 166 | Liska, Martin (1500) | Won 2-1 | +181516 |
| 4sealed | 163 | Klings, Rudiger (1600) | Lost 1-2 | -161500 |
| 5sealed | 256 | Floch, Ivan (1502) | Lost 1-2 | -181482 |
| top | average opponent: 1506record: 2-3 | new rating: 1482 | ||