Stanislaw Kostyra vs Iwo Karolczuk
Stanislaw Kostyra (75, IM, POL) and Iwo Karolczuk (20, IM, POL) have never met in classical OTB, but played 97 rapid/blitz games on record. They share 82 common opponents with at least 3 games each side, providing a calibration of relative strength. With current classical ratings of 2190 and 2373, the Elo model gives Karolczuk a 61% chance of winning a classical game with white.
Head-to-Head Score
If they played today · Classical
Based on current Elo: 2190 vs 2373 (Δ -183)
With Stanislaw Kostyra as white
20% Stanislaw19% draw61% Iwo
With Iwo Karolczuk as white
14% Stanislaw16% draw70% Iwo
Estimate from Elo only · doesn't account for recent form, opening prep, or context.
Career Compare
| Stanislaw Kostyra | Iwo Karolczuk | |
|---|---|---|
| Current rating (STD) | 2190 | 2373 |
| Peak rating | 2336 · Sep 2010 | 2406 · Jul 2025 |
| Peak age | 59 | 19 |
| World rank now | #10,697 | #2,167 |
| World rank peak | #3,837 | #1,601 |
| Federation rank now | #288 | #83 |
| Games (career, STD) | 363 | 801 |
| Months active | 217 | 132 |
| % white wins | 60% | 58% |
| % black wins | 60% | 53% |
| TPR last 12m (STD) | — | 2318 |
| Activity 12m (games) | 483 | 155 |
Best Win
Stanislaw Kostyra
Iwo Karolczuk
Highest-rated opponent ever beaten · STD primary, rapid/blitz for context
All Meetings (97)
Common Opponents
Tournaments Both Played
Cohort Position
Each player compared to active peers (same federation, ±75 Elo, played in last 12 months).
Stanislaw Kostyra
Iwo Karolczuk