Nikolaidis, Antonis
Current rating: 1534
| Grand Prix Warsaw 2018 (GRN limited) | starting rating: 1555 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 223 | Wdowiak, Witold (1450) | Won 1-0 | +161571 |
| 2sealed | 394 | Ferrero, Andrea (1517) | Lost 0-2 | -191552 |
| 3sealed | 720 | Fortrie, Johannes (1501) | Won 2-0 | +171569 |
| 4sealed | 242 | Myszkowiak, Maciej (1643) | Lost 0-2 | -171552 |
| 5sealed | 674 | Puzak, Taras (1505) | Won 2-1 | +171569 |
| 6sealed | 438 | Schaap, Sander (1618) | Lost 0-2 | -171552 |
| 7sealed | 533 | Krawiecki, Dominik (1526) | Lost 0-2 | -181534 |
| top | average opponent: 1537record: 3-4 | new rating: 1534 | ||
| Grand Prix Athens 2006 (TSP limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 129 | Marinakis, Anastasios (1500) | Draw 1-1 | 01500 |
| 2sealed | 106 | Karadimas, Giannis (1500) | Lost 0-2 | -181482 |
| 3sealed | 163 | Sxoinas, Panaugiwtis (1482) | Won 2-1 | +181500 |
| 4sealed | 155 | Carli Maltinti, Lorenzo (1568) | Won 2-0 | +191519 |
| 5sealed | 111 | Kruzic, Stanko (1517) | Won 2-0 | +181537 |
| 6sealed | 73 | Gkerpinis, Nikos (1535) | Lost 0-1 | -181519 |
| 7sealed | 103 | Benev, Georgi (1487) | Won 2-0 | +181537 |
| 8sealed | 74 | Terek, Serkan (1541) | Won 2-0 | +181555 |
| top | average opponent: 1516record: 5-2-1 | new rating: 1555 | ||
| Grand Prix Copenhagen 2005 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 33 | Wageningen, Mathijs (1529) | Lost 0-2 | -171483 |
| 2extended | 118 | Marco, David (1431) | Draw 1-1 | -11482 |
| 3extended | 119 | Nielsen, Jan (1507) | Won 2-0 | +181500 |
| 4extended | 108 | Pettersson, Jimmy (1506) | Won 2-1 | +181518 |
| 5extended | 85 | Theodorou, Vasilis (1519) | Lost 0-2 | -181500 |
| 6extended | 108 | Peters, Richard (1502) | Draw 1-1 | 01500 |
| top | average opponent: 1499record: 2-2-2 | new rating: 1500 | ||