Otahal, Jiri
Current rating: 1536
| Grand Prix Prague 2011 (NPH limited) | starting rating: 1472 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 661 | Barcellos, Guilherme (1652) | Won 2-0 | +211493 |
| 2sealed | 585 | Tischer, Andreas (1484) | Won 2-0 | +181511 |
| 3sealed | 554 | Pikhart, Miroslav (1511) | Won 2-0 | +181529 |
| 4sealed | 516 | Ton, Jonathan (1677) | Lost 1-2 | -151514 |
| 5sealed | 603 | Gruson, Pierre (1499) | Lost 1-2 | -181496 |
| 6sealed | 642 | Liu, Joseph (1535) | Lost 0-2 | -181478 |
| 7sealed | 644 | Over, Thomas (1521) | Won 2-1 | +191497 |
| 8sealed | 600 | Press, Pavel (1518) | Won 2-0 | +181515 |
| 9sealed | 567 | Popov, Alexander (1633) | Won 2-0 | +211536 |
| top | average opponent: 1559record: 6-3 | new rating: 1536 | ||
| Grand Prix Paris 2011 (MBS limited) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1003 | Hibert, Arthur (1500) | Won 2-0 | +181501 |
| 2sealed | 1146 | Bono, Joe (1569) | Won 2-1 | +191520 |
| 3sealed | 1027 | Sukaitis, Tomas (1673) | Won 2-1 | +211541 |
| 4sealed | 1003 | Ascalon, Jason (1564) | Lost 1-2 | -171524 |
| 5sealed | 1124 | Nielsen, Bill (1591) | Lost 1-2 | -171507 |
| 6sealed | 1123 | Chapeau, Alexis (1430) | Lost 0-2 | -201487 |
| 7sealed | 1167 | Buisson, Anthony (1497) | Won 2-0 | +191506 |
| 8sealed | 1116 | Andersson, Joakim (1600) | Lost 0-2 | -171489 |
| 9sealed | 1092 | Notting, Wander (1530) | Lost 1-2 | -171472 |
| top | average opponent: 1550record: 4-5 | new rating: 1472 | ||
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 649 | Ruzicka, Marek (1500) | Lost 1-2 | -181482 |
| 2sealed | 758 | Boruvka, Jan (1482) | Lost 0-2 | -181464 |
| 3sealed | 803 | Bittner, Regina (1463) | Won 2-0 | +181482 |
| 4sealed | 809 | Horvath, Tamas 2 (1449) | Lost 1-2 | -191463 |
| 5sealed | 816 | Mikes, Ondra (1466) | Lost 1-2 | -181445 |
| 6sealed | 787 | Mederly, Peter (1430) | Won 2-0 | +181463 |
| 7sealed | 738 | Olczak, Dariusz (1416) | Won 2-0 | +171480 |
| 8sealed | 679 | Llano, Enrique (1627) | Lost 1-2 | -151465 |
| 9sealed | 642 | Kramer, Michal (1463) | Won 2-0 | +181483 |
| top | average opponent: 1477record: 4-5 | new rating: 1483 | ||