Gerritsen, Arjan
Current rating: 1503
Record: 4-4-1
| Grand Prix Rotterdam 2009 (CON limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 97 | Golzsch, Matthias (1500) | Draw 1-1 | 01500 |
| 2sealed | 157 | Harel, Maxime (1447) | Won 2-0 | +171517 |
| 3sealed | 100 | Tallandier, Vincent (1503) | Lost 1-2 | -181499 |
| 4sealed | 185 | Perez Paez, Oscar (1590) | Lost 0-2 | -171482 |
| 5sealed | 211 | Melis, Tom (1480) | Won 2-1 | +181500 |
| 6sealed | 168 | Kaurinovic, Timmy (1589) | Lost 0-2 | -161484 |
| 7sealed | 154 | Temoins, Sylvain (1498) | Won 2-0 | +181502 |
| 8sealed | 112 | Van Volsem, Geert (1464) | Won 2-1 | +181520 |
| 9sealed | 77 | Allouchery, Gonzague (1576) | Lost 0-2 | -171503 |
| average opponent: 1516record: 4-4-1 | new rating: 1503 | |||