4 games · 2012–2025 · 4 classical · 0 online
Papaioannou 13 draws0 Nikolaidis
62.5% for Papaioannou
Openings between them
| A17 | English Opening: Anglo-Indian Defense, Nimzo-English | 1 | 50.0% |
| A46 | Yusupov-Rubinstein System | 1 | 100.0% |
| D20 | Queen's Gambit Accepted: Central Variation, Alekhine System | 1 | 50.0% |
| E61 | King's Indian Defense | 1 | 50.0% |
All games
| Nikolaidis, I2462 | ½-½ | Papaioannou, I2626 | 52nd TCh-GRE 2025 | 2025 |
| Nikolaidis, I2559 | ½-½ | Papaioannou, I2633 | 5th Isthmia Open 2015 | 2015 |
| Nikolaidis, I2566 | 0-1 | Papaioannou, I2642 | 42th TCh-GRE 2014 | 2014 |
| Papaioannou, I2597 | ½-½ | Nikolaidis, I2557 | 30th Greek Cup 2012 | 2012 |