Simko, David
Current rating: 1407
Record: 13-22-3
| Grand Prix Vienna 2008 (extended) | starting rating: 1411 | |||
| round | table | opponent (rating) | result | Δrating |
| 4extended | 32 | Naydenov, George (1641) | Won 2-0 | +221433 |
| 5extended | 21 | Szabo, Andras (1547) | Lost 1-2 | -161417 |
| 6extended | 46 | Guetl, Ronald (1701) | Lost 0-2 | -131404 |
| 7extended | 92 | Santi, Robert (1458) | Won 2-1 | +191423 |
| 8extended | 55 | Brotzmann, Hendrik (1489) | Lost 0-2 | -161407 |
| top | average opponent: 1567record: 2-3 | new rating: 1407 | ||
| Grand Prix Strasbourg 2007 (Time Spiral block) | starting rating: 1421 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 152 | Meier, Gabriel (1500) | Won 2-1 | +201441 |
| 2block | 25 | Lespinas, Didier (1595) | Lost 0-2 | -151426 |
| 3block | 127 | Beckmann, Bertram (1500) | Lost 0-2 | -171409 |
| 4block | 192 | Clement, Samuel (1483) | Won 1-0 | +191428 |
| 5block | 175 | Anchisi, Corrado (1484) | Lost 1-2 | -171411 |
| top | average opponent: 1513record: 2-3 | new rating: 1411 | ||
| Grand Prix Stockholm 2007 (FUT limited) | starting rating: 1387 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 187 | Schmidt, Gustav (1500) | Won 2-0 | +201407 |
| 2sealed | 148 | Nuttall, Daniel (1517) | Lost 1-2 | -161391 |
| 3sealed | 150 | Stenberg, David (1552) | Won 2-1 | +211412 |
| 4sealed | 225 | Naslund, Emkan (1526) | Lost 1-2 | -161396 |
| 5sealed | 252 | Bjokil, Per (1504) | Won 2-1 | +201416 |
| 6sealed | 129 | Silfver, Ahti (1486) | Lost 0-2 | -171399 |
| 7sealed | 179 | Gabriel, Michal (1486) | Won 0-0 | +201419 |
| 8sealed | 151 | Olsson, Johan (1468) | Won 2-0 | +181437 |
| 9sealed | 103 | Adolfsson, Simon (1542) | Lost 1-2 | -161421 |
| top | average opponent: 1509record: 5-4 | new rating: 1421 | ||
| Grand Prix Dortmund 2006 (GPT limited) | starting rating: 1367 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 169 | Heim, Andreas (1575) | Draw 1-1 | +41371 |
| 2sealed | 139 | Post, Uwe (1500) | Won 2-1 | +201391 |
| 3sealed | 67 | Meyer, Rudy (1676) | Lost 0-2 | -131378 |
| 4sealed | 148 | Simon, Swen (1497) | Won 2-1 | +201398 |
| 5sealed | 95 | Karl, Gotz (1504) | Draw 1-1 | +21400 |
| 6sealed | 129 | Mazzurco, Carlo (1564) | Draw 1-1 | +31403 |
| 7sealed | 128 | Podlaha, Martin (1488) | Lost 0-2 | -161387 |
| top | average opponent: 1543record: 2-2-3 | new rating: 1387 | ||
| Grand Prix Vienna 2004 (COK limited) | starting rating: 1417 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 35 | Naraks, Aljaz (1464) | Lost 0-2 | -171400 |
| 2sealed | 396 | Brzegowy, Adrian (1480) | Lost 0-2 | -171383 |
| 3sealed | 400 | Braumandl, Bernhard (1462) | Lost 0-2 | -161367 |
| top | average opponent: 1469record: 0-3 | new rating: 1367 | ||
| Grand Prix Rimini 2004 (Mirrodin block) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 6 | Sabbadini, Massimo (1504) | Lost 1-2 | -171450 |
| 3block | 188 | Caenazzo, Tommaso (1499) | Lost 1-2 | -181432 |
| 4block | 272 | Andreozzi, Francesco (1482) | Lost 1-2 | -171415 |
| 5block | 300 | Scardapane, Pasquale (1465) | Won 2-1 | +191434 |
| 6block | 236 | Zazzali, Ignacio (1481) | Lost 0-2 | -171417 |
| top | average opponent: 1486record: 1-4 | new rating: 1417 | ||
| Grand Prix Prague 2003 (LGN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 152 | Receveur, Richard (1507) | Lost 1-2 | -181482 |
| 2sealed | 308 | Guarino, Massimo (1604) | Lost 0-2 | -161466 |
| 4sealed | 382 | De Sio, Jakub (1481) | Won 2-1 | +191485 |
| 5sealed | 250 | Havel, Jan (1501) | Lost 1-2 | -181467 |
| top | average opponent: 1523record: 1-3 | new rating: 1467 | ||