Oostveen, Arno
Current rating: 1537
| Grand Prix Utrecht 2014 (M15 standard) | starting rating: 1509 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 197 | Burgstaller, Cornelius (1500) | Won 2-1 | +181527 |
| 2standard | 307 | Armitage, Sam (1517) | Won 2-0 | +181545 |
| 3standard | 233 | Kohl, Reinhold (1878) | Lost 0-2 | -121533 |
| 4standard | 328 | Kaschapow, Marcel (1740) | Lost 1-2 | -151518 |
| 5standard | 368 | Leterme, Benoit (1641) | Lost 1-2 | -151503 |
| 6standard | 494 | Hijlkema, Ramon (1447) | Won 2-0 | +171520 |
| 7standard | 365 | Oldeman, Dave (1507) | Won 2-0 | +171537 |
| top | average opponent: 1604record: 4-3 | new rating: 1537 | ||
| Grand Prix Eindhoven 2005 (extended) | starting rating: 1531 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 163 | de Backer, Thomas (1500) | Won 2-0 | +181549 |
| 2extended | 203 | Lhomme, Steeve (1501) | Lost 1-2 | -191530 |
| 3extended | 205 | van der Vegt, Jan (1500) | Won 2-0 | +171547 |
| 4extended | 259 | Visser, Bart (1448) | Lost 1-2 | -191528 |
| 5extended | 345 | Bronsgeest, Bas (1498) | Lost 0-2 | -191509 |
| top | average opponent: 1490record: 2-3 | new rating: 1509 | ||
| Grand Prix Antwerp 2002 (TOR limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 122 | Roos, Maarten (1480) | Won 2-0 | +181518 |
| 2sealed | 106 | Lagas, Joost (1519) | Won 2-0 | +181536 |
| 3sealed | 60 | Chaouche, Sophie (1536) | Won 2-1 | +181554 |
| 4sealed | 3 | van de Logt, Tom (1997) | Lost 0-2 | -111543 |
| 5sealed | 50 | Ormerod, John (1898) | Lost 0-2 | -121531 |
| top | average opponent: 1686record: 3-2 | new rating: 1531 | ||