Mateusz Kolosowski vs Marcin Sieciechowicz
Mateusz Kolosowski (34, IM, POL) and Marcin Sieciechowicz (34, IM, POL) have met 8 times in classical OTB. With current classical ratings of 2435 and 2386, the Elo model gives Kolosowski a 50% chance of winning a classical game with white.
Head-to-Head Score
If they played today · Classical
Based on current Elo: 2435 vs 2386 (Δ +49)
With Mateusz Kolosowski as white
50% Mateusz24% draw26% Marcin
With Marcin Sieciechowicz as white
38% Mateusz28% draw34% Marcin
Estimate from Elo only · doesn't account for recent form, opening prep, or context.
Career Compare
| Mateusz Kolosowski | Marcin Sieciechowicz | |
|---|---|---|
| Current rating (STD) | 2435-9 | 2386+3 |
| Peak rating | 2474 · Nov 2014 | 2462 · Jun 2013 |
| Peak age | 22 | 21 |
| World rank now | #1,178 | #1,926 |
| World rank peak | #988 | #1,141 |
| Federation rank now | #49 | #75 |
| Games (career, STD) | 612 | 1,296 |
| Months active | 206 | 205 |
| % white wins | 52% | 60% |
| % black wins | 44% | 49% |
| TPR last 12m (STD) | 2367 | 2338 |
| Activity 12m (games) | 25 | 365 |
Best Win
Mateusz Kolosowski
Marcin Sieciechowicz
Highest-rated opponent ever beaten · STD primary, rapid/blitz for context
All Meetings (8)
Common Opponents
Tournaments Both Played
Cohort Position
Each player compared to active peers (same federation, ±75 Elo, played in last 12 months).
Mateusz Kolosowski
Marcin Sieciechowicz