Roodnburg, Roben
Current rating: 1519
Record: 5-4
| Grand Prix London 2013 (GTC limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 515 | Jack, Christopher (1500) | Won 2-1 | +181518 |
| 2sealed | 294 | Lejeune, Olivier (1548) | Lost 1-2 | -171501 |
| 3sealed | 673 | Glen, Alasdair (1500) | Lost 1-2 | -181483 |
| 4sealed | 636 | Weaver, Chris (1492) | Won 2-0 | +181501 |
| 5sealed | 692 | Nelson, Andy (1506) | Lost 0-2 | -181483 |
| 6sealed | 682 | Gerhardt, Rostislav (1482) | Won 2-0 | +181501 |
| 7sealed | 464 | Prat, Christophe (1460) | Won 2-0 | +171518 |
| 8sealed | 359 | Ciechowicz, Rafal (1490) | Lost 0-2 | -181500 |
| 9sealed | 310 | Lamesch, Matthias (1595) | Won 2-0 | +191519 |
| average opponent: 1508record: 5-4 | new rating: 1519 | |||