Buchta, Rudolf
Current rating: 1495
| Grand Prix Prague 2016 (legacy) | starting rating: 1486 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 117 | Kostal, Zdenek (1513) | Draw 1-1 | 01486 |
| 2legacy | 301 | Fyda, Sebastian (1476) | Won 2-0 | +181504 |
| 3legacy | 351 | Pacilio, Marco (1521) | Lost 1-2 | -181486 |
| 4legacy | 490 | Maass, Michael (1389) | Won 2-0 | +171503 |
| 5legacy | 342 | Tolvanen, Martti (1461) | Won 2-1 | +171520 |
| 6legacy | 216 | Castillo, Dani (1606) | Lost 1-2 | -171503 |
| 7legacy | 339 | Kinc, Lukas (1518) | Won 2-1 | +191522 |
| 8legacy | 229 | Dezani, Jeremy (2008) | Lost 1-2 | -101512 |
| 9legacy | 321 | Korpela, Jussi (1596) | Lost 1-2 | -171495 |
| top | average opponent: 1565record: 4-4-1 | new rating: 1495 | ||
| Grand Prix Lyon 2010 (ROE limited) | starting rating: 1510 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 569 | Bailly-Maitre, Gael (1773) | Lost 0-2 | -131497 |
| 5sealed | 609 | Dumontier, Laurent (1513) | Lost 0-2 | -181479 |
| 6sealed | 646 | Polonia, Jeremy (1553) | Won 0-0 | +191498 |
| 7sealed | 601 | Stephane, Duron (1537) | Lost 0-2 | -171481 |
| 8sealed | 612 | Guerrero Lago, Raul R (1655) | Won 2-1 | +211502 |
| 9sealed | 581 | Alarcon, Jorge (1591) | Lost 1-2 | -161486 |
| top | average opponent: 1604record: 2-4 | new rating: 1486 | ||
| Grand Prix Brussels 2010 (WWK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4standard | 22 | Engleitner, Herbert (1857) | Lost 1-2 | -121488 |
| 5standard | 115 | Bastos, Frederico (1525) | Lost 1-2 | -171471 |
| 6standard | 142 | Scheenaard, Marcel (1515) | Won 2-1 | +191490 |
| 7standard | 140 | Richard, Otto (1554) | Lost 0-2 | -171473 |
| 8standard | 140 | Cavanna, Emanuele (1454) | Won 2-0 | +181491 |
| 9standard | 108 | Woltjes, Geertjan (1570) | Won 2-1 | +191510 |
| top | average opponent: 1579record: 3-3 | new rating: 1510 | ||