Welsing, Bastiaan
Current rating: 1519
Record: 9-8
| Grand Prix Brussels 2010 (WWK standard) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 74 | Velthuijsen, Steven (1502) | Lost 0-2 | -181483 |
| 2standard | 348 | Zinque, Michel (1467) | Won 2-1 | +171500 |
| 3standard | 273 | Chernobryvchenko, Mikhail (1495) | Lost 0-2 | -181482 |
| 4standard | 336 | Gamblin, Patrick M (1452) | Lost 1-2 | -181464 |
| 5standard | 343 | Broesigke, Berengar (1380) | Won 2-0 | +161480 |
| 6standard | 271 | Stihle, Julien (1649) | Won 2-0 | +211501 |
| 7standard | 188 | Gillet, Aurelien (1543) | Won 2-1 | +191520 |
| 8standard | 154 | Van Dyck, Jeroen (1506) | Lost 0-2 | -181502 |
| 9standard | 125 | Minard, Sebastien (1463) | Won 2-1 | +171519 |
| average opponent: 1495record: 5-4 | new rating: 1519 | |||
| Grand Prix Eindhoven 2005 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 354 | van Wanrooy, Sander (1460) | Lost 1-2 | -191481 |
| 2extended | 337 | Dings, Viktor (1482) | Won 2-0 | +181499 |
| 3extended | 274 | Walther, Nico (1500) | Won 2-0 | +181517 |
| 4extended | 170 | van Oreleek, Rene (1518) | Lost 1-2 | -181499 |
| 5extended | 324 | Lenaerts, Mathi (1472) | Lost 1-2 | -181481 |
| 6extended | 308 | Boer, Robbin (1486) | Won 2-1 | +181499 |
| 7extended | 215 | Atatat, Vitaly (1498) | Won 2-0 | +181517 |
| 8extended | 156 | Zunko, Bojan (1611) | Lost 1-2 | -161501 |
| average opponent: 1503record: 4-4 | new rating: 1501 | |||