Dragstra, Mark
Current rating: 1441
| Grand Prix Lille 2015 (legacy) | starting rating: 1516 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 85 | Watin, Thomas (1375) | Lost 0-2 | -201496 |
| 2legacy | 479 | Muller, Jan-Oliver (1465) | Lost 0-2 | -191477 |
| 3legacy | 719 | Naimo, Stephane (1554) | Lost 1-2 | -171460 |
| 4legacy | 731 | Gouge, Jeremy (1361) | Lost 1-2 | -191441 |
| top | average opponent: 1439record: 0-4 | new rating: 1441 | ||
| Grand Prix London 2003 (Onslaught block) | starting rating: 1536 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 83 | Benages, Alfred (1552) | Lost 1-2 | -171519 |
| 3block | 178 | Mazierski, Pawel (1589) | Lost 0-2 | -171502 |
| 4block | 202 | Pool, Graham (1434) | Lost 0-2 | -191483 |
| 5block | 218 | Ratcliffe, Mark (1463) | Won 2-0 | +171500 |
| 6block | 170 | Challis, Jonathan (1479) | Won 2-0 | +181518 |
| 7block | 122 | Noatschk, Oscar (1503) | Lost 0-2 | -181500 |
| 8block | 139 | Hubner, Norman (1413) | Won 2-1 | +161516 |
| top | average opponent: 1490record: 3-4 | new rating: 1516 | ||
| Grand Prix London 2002 (Odyssey block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 54 | Lorkovic, Hrvoje (1465) | Lost 1-2 | -191481 |
| 2block | 193 | Horwood, Barry (1482) | Won 2-0 | +181499 |
| 3block | 156 | Teichert, Enrico (1465) | Won 2-1 | +181517 |
| 4block | 197 | Klimes, Tomas (1487) | Won 2-0 | +171534 |
| 5block | 87 | Mazierski, Igor (1531) | Won 2-1 | +181552 |
| 6block | 69 | Gromko, Radoslaw (1754) | Lost 1-2 | -141538 |
| 7block | 107 | Clark, Nicholas (1520) | Won 2-1 | +171555 |
| 8block | 50 | Hodges, Simon (1503) | Lost 1-2 | -191536 |
| top | average opponent: 1526record: 5-3 | new rating: 1536 | ||