Tigchelaar, Martin
Current rating: 1426
Record: 6-11
| Grand Prix Rotterdam 2009 (CON limited) | starting rating: 1408 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 570 | Pas, Vincent (1500) | Won 2-1 | +201428 |
| 2sealed | 444 | Gilis, Lucas (1659) | Lost 0-2 | -141414 |
| 3sealed | 621 | Lemaitre, Maxime (1632) | Lost 0-2 | -141400 |
| 4sealed | 665 | Kanis, Jeroen (1481) | Won 2-1 | +201420 |
| 5sealed | 586 | Dijkstra, Mark (1491) | Won 2-1 | +191439 |
| 6sealed | 566 | Vrijhof, Jan (1541) | Won 2-1 | +201459 |
| 7sealed | 512 | van Ravenzwaaij, Don (1534) | Lost 1-2 | -171442 |
| 8sealed | 496 | Emeric, Plaideux (1519) | Lost 0-2 | -161426 |
| average opponent: 1545record: 4-4 | new rating: 1426 | |||
| Grand Prix Eindhoven 2005 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 196 | Marsman, Mark (1500) | Lost 0-2 | -181482 |
| 2extended | 402 | Leng, Michael (1433) | Lost 1-2 | -191463 |
| 3extended | 450 | Gramser, Niels (1464) | Lost 0-2 | -181445 |
| 4extended | 463 | Tigchelaar, Lieuwe (1445) | Lost 0-2 | -181427 |
| 5extended | 436 | Overmars, Marlon (1429) | Won 2-1 | +181445 |
| 6extended | 361 | Cadier, Ron (1451) | Lost 0-2 | -181427 |
| 7extended | 314 | Van Osch, Joost (1429) | Won 2-1 | +181445 |
| 8extended | 237 | Billiet, Lesly (1397) | Lost 0-2 | -191426 |
| 9extended | 204 | Rotstejn, Thimon (1428) | Lost 1-2 | -181408 |
| average opponent: 1442record: 2-7 | new rating: 1408 | |||