Pieterman, Robbin
Current rating: 1519
Record: 9-8
| Grand Prix Eindhoven 2005 (extended) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 142 | Uittenbogaard, Kenny (1506) | Won 2-1 | +181519 |
| 2extended | 89 | Huts, Roy (1613) | Lost 0-2 | -161503 |
| 3extended | 338 | Woesthoff, Max (1500) | Lost 0-2 | -181485 |
| 4extended | 337 | van Hoek, Bart (1484) | Lost 1-2 | -181467 |
| 5extended | 390 | Phlippen, Mark (1463) | Won 2-0 | +171484 |
| 6extended | 294 | Billiet, Lesly (1432) | Won 2-0 | +181502 |
| 7extended | 220 | Tang, Ming (1499) | Lost 0-2 | -191483 |
| 8extended | 220 | Meilink, Willem (1469) | Won 2-1 | +181501 |
| 9extended | 151 | Betschart, Peter (1466) | Won 2-1 | +181519 |
| average opponent: 1492record: 5-4 | new rating: 1519 | |||
| Grand Prix Paris 2004 (COK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 33 | Golczyk, Xavier (1464) | Lost 1-2 | -191481 |
| 2sealed | 258 | Horem, Kevin (1482) | Lost 1-2 | -181463 |
| 3sealed | 347 | Alix, Antoine (1463) | Won 2-0 | +181481 |
| 4sealed | 316 | Goeury, Jean (1482) | Won 2-1 | +181499 |
| 5sealed | 169 | valour, julien (1531) | Lost 1-2 | -171482 |
| 6sealed | 217 | Havard, Boris (1481) | Lost 0-2 | -181464 |
| 7sealed | 182 | Romet, Alexis (1463) | Won 2-0 | +181482 |
| 8sealed | 127 | Kosynski, Baptiste (1532) | Won 2-0 | +191501 |
| average opponent: 1487record: 4-4 | new rating: 1501 | |||