Karel, Jan
Current rating: 1495
Record: 5-6
| Grand Prix Vienna 2013 (THS standard) | starting rating: 1446 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 112 | Zidek, Arnost (1794) | Lost 1-2 | -121434 |
| 3standard | 438 | Arildsen, Frederik (1500) | Won 2-1 | +191453 |
| 4standard | 284 | Naslund, Jonas (1567) | Lost 1-2 | -161437 |
| 5standard | 441 | Nicolli, Francesco (1452) | Won 2-0 | +181455 |
| 6standard | 263 | Jaworski, Dominik (1388) | Lost 0-2 | -191436 |
| 7standard | 415 | Pedon, Alessandro (1469) | Won 2-0 | +191455 |
| 8standard | 290 | Sava, Alexandru (1518) | Won 2-1 | +191474 |
| 9standard | 196 | Landoni, Nicola (1673) | Won 2-1 | +211495 |
| average opponent: 1545record: 5-3 | new rating: 1495 | |||
| Grand Prix Prague 2013 (M14 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 48 | Saul, Philip (1377) | Lost 0-2 | -201480 |
| 3sealed | 586 | Gargulak, Daniel (1556) | Lost 0-2 | -171463 |
| 4sealed | 584 | Bezusek, Pavel (1487) | Lost 0-2 | -171446 |
| average opponent: 1473record: 0-3 | new rating: 1446 | |||