Konstandinidis, Kostas
Current rating: 1470
| Grand Prix Milan 2011 (ISD limited) | starting rating: 1448 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 130 | Usuelli, Michele (1464) | Won 2-1 | +181466 |
| 2sealed | 38 | Todesco, Daja (1681) | Won 2-1 | +221488 |
| 3sealed | 99 | Moscato, Adriano (1486) | Lost 0-2 | -181470 |
| top | average opponent: 1544record: 2-1 | new rating: 1470 | ||
| Grand Prix Paris 2009 (ZEN limited) | starting rating: 1483 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 873 | Magniette, Frederic (1500) | Won 2-0 | +181501 |
| 2sealed | 723 | Barbier, Guillaume (1614) | Lost 0-2 | -161485 |
| 3sealed | 875 | Cuvillier, Jean-Baptiste (1428) | Lost 1-2 | -191466 |
| 4sealed | 992 | Maigret, Marc (1481) | Lost 0-2 | -181448 |
| top | average opponent: 1506record: 1-3 | new rating: 1448 | ||
| Grand Prix Athens 2006 (TSP limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 11 | Antimissaris, Aris (1500) | Lost 0-2 | -181482 |
| 2sealed | 155 | Konstandinidis, Manolis (1483) | Won 2-0 | +181500 |
| 3sealed | 116 | Mavroudis, Georgios (1500) | Lost 1-2 | -181482 |
| 4sealed | 160 | Konstandaras, Giannis (1487) | Lost 1-2 | -181464 |
| 5sealed | 184 | Fountas, Angel (1469) | Lost 1-2 | -181446 |
| 6sealed | 179 | Grammenos, Anastasios (1452) | Won 2-1 | +181464 |
| 7sealed | 143 | Xanthakis, Vagelis (1481) | Draw 1-1 | +11465 |
| 8sealed | 131 | Vlachos, Jim (1464) | Won 2-0 | +181483 |
| top | average opponent: 1479record: 3-4-1 | new rating: 1483 | ||