Male
FIDE ID:
Iwo Karolczuk
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Sthlm Nth Young Talents | 08/11/2026 | 2261 |  Sweden |
| Jana Maciei Mem 2025 | 07/07/2025 | 2257 |  Poland |
| 2nd Gambit GM Closed 2025 | 05/31/2025 | 2389 |  Czech Republic |
| 1st Gambit GM Closed 2025 | 03/08/2025 | 2405 | Czech Republic |
Most Played Openings as White
| ECO | Opening | Games |
| D02 | Queen's pawn game | 5 games |
| B12 | Caro-Kann defence | 3 games |
| A07 | Reti, King's Indian attack (Barcza system) | 3 games |
| B31 | Sicilian, Nyezhmetdinov-Rossolimo attack (with ...g6, without ...d6) | 3 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B90 | Sicilian, Najdorf | 5 games |
| A04 | Reti opening | 4 games |
| B51 | Sicilian, Canal-Sokolsky (Nimzovich-Rossolimo, Moscow) attack | 4 games |
| E16 | Queen's Indian, Capablanca variation | 3 games |
