Kolbeek, Pieter
Current rating: 1449
Record: 3-6-1
| Grand Prix Utrecht 2015 (MM2 limited) | starting rating: 1478 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1086 | Clarijs, Bas (1500) | Won 2-0 | +191497 |
| 2sealed | 1004 | Van Gent, Leo (1518) | Lost 1-2 | -181479 |
| 3sealed | 1365 | Cestaro, Laurent (1596) | Lost 0-2 | -161463 |
| 4sealed | 1406 | Love, James (1658) | Lost 0-2 | -141449 |
| average opponent: 1568record: 1-3 | new rating: 1449 | |||
| Grand Prix Antwerp 2013 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 145 | enzo, wang (1500) | Lost 1-2 | -181482 |
| 2modern | 440 | Galinet, Laurent (1482) | Won 2-0 | +181500 |
| 3modern | 537 | L'Hopital, Sonia (1432) | Draw 1-1 | -11499 |
| 4modern | 539 | van Vliet, Remco (1503) | Lost 1-2 | -181481 |
| 5modern | 622 | Duval, Simon (1286) | Won 2-0 | +141495 |
| 6modern | 495 | Krolow, Frank (1550) | Lost 1-2 | -171478 |
| average opponent: 1459record: 2-3-1 | new rating: 1478 | |||