Vruggink, Joop
Current rating: 1554
Record: 14-11-2 (GP) / 4-5 (professional)
| Grand Prix Eindhoven 2005 (extended) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 97 | van Soest, Rudy (1500) | Lost 1-2 | -181483 |
| 2extended | 315 | Sperber, Maarten (1481) | Won 2-0 | +181501 |
| 3extended | 229 | Kammer, Michael (1502) | Won 2-1 | +181519 |
| 4extended | 190 | Detmers, Rob (1517) | Lost 0-2 | -181501 |
| 5extended | 249 | Stender, Hugo (1499) | Won 2-0 | +181519 |
| 6extended | 183 | Hagen, Michiel (1510) | Won 2-0 | +181537 |
| 7extended | 144 | Moons, Dennis (1473) | Won 2-1 | +171554 |
| 8extended | 82 | Vos, Roy (1562) | Won 2-0 | +181572 |
| 9extended | 51 | Scheinin, Martin (1589) | Lost 1-2 | -181554 |
| top | average opponent: 1515record: 6-3 | new rating: 1554 | ||
| Grand Prix Paris 2004 (COK limited) | starting rating: 1496 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 225 | Colus, Julien (1500) | Won 2-1 | +181514 |
| 2sealed | 47 | Foucart, Benoit (1518) | Lost 0-2 | -181496 |
| 3sealed | 262 | Slama, Julien (1499) | Won 2-0 | +181514 |
| 4sealed | 127 | Delvaux, Charles (1799) | Lost 0-2 | -131501 |
| top | average opponent: 1579record: 2-2 | new rating: 1501 | ||
| 2003 European Championship (mixed) | starting rating: 1497 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 131 | Silverstone, Julien (1620) | Lost 1-2 | -161481 |
| 2standard | 97 | Coeckelbergh, Gert (1707) | Lost 0-2 | -131468 |
| 3standard | 130 | Jedlicka, Stefan (1808) | Lost 0-2 | -121456 |
| 4rochester | 3 | Toikka, Arho (1540) | Lost 1-2 | -171439 |
| 5rochester | 10 | Simon, Zoltan (1447) | Lost 1-2 | -181421 |
| 7rochester | 95 | Huber, Christoph (1474) | Won 2-1 | +191440 |
| 8rochester | 96 | Lamr, Martin (1433) | Won 2-0 | +181458 |
| 9rochester | 50 | Johansen, Thomas (1586) | Won 2-1 | +201478 |
| 10rochester | 80 | Fitzgerald, Sean M (1465) | Won 2-1 | +181496 |
| top | average opponent: 1565record: 4-5 | new rating: 1496 | ||
| Grand Prix London 2001 (Invasion block) | starting rating: 1515 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 72 | Hayden, Martin (1505) | Draw 1-1 | 01515 |
| 3block | 88 | Pauling, Owen (1520) | Lost 1-2 | -181497 |
| 4block | 161 | Beattie, Paul (1500) | Draw 1-1 | 01497 |
| top | average opponent: 1508record: 0-1-2 | new rating: 1497 | ||
| Grand Prix Amsterdam 2001 (INV limited) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 17 | Drijvers, Richard (1500) | Lost 0-2 | -191499 |
| 2sealed | 249 | Vrouwenvelder, Mario (1482) | Won 2-0 | +181517 |
| 3sealed | 176 | Becker, Axel (1486) | Won 2-1 | +181535 |
| 4sealed | 123 | Steinbusch, Stefan (1501) | Lost 1-2 | -191516 |
| 5sealed | 183 | Bos, Eugene (1499) | Won 2-0 | +181534 |
| 6sealed | 126 | van Dongen, Stijn (1516) | Lost 0-2 | -191515 |
| top | average opponent: 1497record: 3-3 | new rating: 1515 | ||
| Grand Prix Barcelona 1999 (USG sealed) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 31 | Romero, Andres (1500) | Won 0-0 | +181518 |
| 3sealed | 23 | Vinagre, Antonio (1518) | Lost 0-0 | -181500 |
| 4sealed | 68 | Aragues, Sergi (1500) | Won 0-0 | +181518 |
| 5sealed | 29 | Comulada, Ricard (1518) | Won 0-0 | +181536 |
| 6sealed | 44 | Perez Fresnedo, Javier (1521) | Lost 0-0 | -181518 |
| top | average opponent: 1511record: 3-2 | new rating: 1518 | ||