Posolda, Petr
Current rating: 1528
Record: 11-9-3 (GP) / 8-11-1 (professional)
| Grand Prix Prague 2001 (PLS limited) | starting rating: 1448 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 26 | Mazierski, Pawel (1602) | Draw 1-1 | +31451 |
| 3sealed | 102 | Konieczny, Piotr (1519) | Won 2-0 | +191470 |
| 4sealed | 55 | Ruzizka, Ernst (1507) | Lost 0-2 | -181452 |
| 5sealed | 118 | Melzer, James (1516) | Won 2-0 | +201472 |
| 6sealed | 80 | Bruederl, Andreas (1505) | Won 2-0 | +181490 |
| 7sealed | 44 | Baudys, Ondrej (1652) | Won 2-0 | +211511 |
| 8sealed | 22 | Muller, Andre (1690) | Won 2-0 | +211532 |
| 9draft | 11 | Sierocinski, Pawel (1597) | Won 2-0 | +201552 |
| 10draft | 5 | Van Cleave, Trey (1838) | Lost 1-2 | -131539 |
| 11draft | 16 | Snepvangers, Bram (1840) | Draw 1-1 | +51544 |
| 12draft | 20 | Kosicka, Tomas (1569) | Lost 1-2 | -181526 |
| 13draft | 25 | Mroz, Mateusz (1544) | Lost 1-2 | -171509 |
| 14draft | 26 | Lamr, Martin (1560) | Won 2-1 | +191528 |
| top | average opponent: 1611record: 7-4-2 | new rating: 1528 | ||
| Grand Prix Vienna 1999 (extended) | starting rating: 1455 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 85 | Rimkus, Henning (1517) | Won 0-0 | +201475 |
| 3extended | 27 | Ozsvald, Richard (1536) | Lost 0-0 | -171458 |
| 4extended | 62 | Beierstedt, Florian (1518) | Won 0-0 | +191477 |
| 5extended | 39 | Vitkovsky, Michal (1519) | Draw 0-0 | +11478 |
| 6extended | 48 | Provaznik, Peter (1536) | Won 0-0 | +191497 |
| 7extended | 29 | Lawrenz, Thomas (1554) | Won 0-0 | +191516 |
| 8extended | 16 | Rolla, Riccardo (1603) | Lost 0-0 | -171499 |
| 9extended | 23 | Laznovsky, Martin (1578) | Lost 0-0 | -161483 |
| 10extended | 25 | Koch, Florian (1536) | Lost 0-0 | -171466 |
| 11extended | 28 | Loroff, Claudia (1469) | Lost 0-0 | -181448 |
| top | average opponent: 1536record: 4-5-1 | new rating: 1448 | ||
| Pro Tour Los Angeles 1999 (USG rochester) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 1rochester | 74 | Nuttall, Daniel (1612) | Lost 0-0 | -151452 |
| 2rochester | 84 | Humpherys, David (1618) | Lost 0-2 | -151437 |
| 3rochester | 138 | Ota, Akira (1464) | Won 2-0 | +181455 |
| 4rochester | 99 | Kaplun, Ted (1482) | Lost 1-2 | -171438 |
| 5rochester | 66 | Marcus, Justin (1466) | Won 2-0 | +181456 |
| 6rochester | 73 | Vernyns, Linus (1485) | Won 0-0 | +191475 |
| 7rochester | 104 | Becker, Jonathan (1397) | Lost 0-0 | -201455 |
| top | average opponent: 1504record: 3-4 | new rating: 1455 | ||
| Pro Tour Rome 1998 (extended) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 55 | Baca, Jeremy (1500) | Lost 0-0 | -171446 |
| 2extended | 87 | Lopez Andreu, Alfonso (1464) | Won 0-0 | +181464 |
| 3extended | 52 | Faustino, Manuel (1500) | Won 0-0 | +191483 |
| 4extended | 56 | Senyuz, Aras (1518) | Lost 0-0 | -181465 |
| 5extended | 85 | Klings, Rudiger (1504) | Draw 0-0 | +11466 |
| 6extended | 67 | Clarke, Nate (1493) | Lost 0-0 | -171449 |
| 7extended | 83 | Pennock, John (1485) | Won 0-0 | +181467 |
| top | average opponent: 1495record: 3-3-1 | new rating: 1467 | ||
| Pro Tour Los Angeles 1998 (Tempest block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 125 | Stanoev, Ivan (1500) | Lost 0-0 | -181482 |
| 2block | 162 | Palm, Magnus (1482) | Won 0-0 | +181500 |
| 3block | 112 | Kroger, Peer (1500) | Lost 0-0 | -181482 |
| 5block | 133 | Kelly, Ryan 2 (1464) | Won 0-0 | +181500 |
| 6block | 103 | Feustel, Elihu (1482) | Lost 0-0 | -191481 |
| 7block | 114 | Buschenfeld, Florian (1464) | Lost 0-0 | -181463 |
| top | average opponent: 1482record: 2-4 | new rating: 1463 | ||