Jacek Tomczak vs Marcin Sieciechowicz
Jacek Tomczak (36, GM, POL) and Marcin Sieciechowicz (34, IM, POL) have met 8 times in classical OTB plus 16 rapid/blitz games. Tomczak leads the classical series 3–1 (4 draws). With current classical ratings of 2545 and 2386, the Elo model gives Tomczak a 66% chance of winning a classical game with white.
Head-to-Head Score
If they played today · Classical
Based on current Elo: 2545 vs 2386 (Δ +159)
With Jacek Tomczak as white
66% Jacek18% draw15% Marcin
With Marcin Sieciechowicz as white
56% Jacek22% draw22% Marcin
Estimate from Elo only · doesn't account for recent form, opening prep, or context.
Career Compare
| Jacek Tomczak | Marcin Sieciechowicz | |
|---|---|---|
| Current rating (STD) | 2545+12 | 2386+3 |
| Peak rating | 2635 · Mar 2019 | 2462 · Jun 2013 |
| Peak age | 29 | 21 |
| World rank now | #342 | #1,926 |
| World rank peak | #135 | #1,141 |
| Federation rank now | #11 | #75 |
| Games (career, STD) | 1,155 | 1,296 |
| Months active | 212 | 205 |
| % white wins | 60% | 60% |
| % black wins | 50% | 49% |
| TPR last 12m (STD) | 2480 | 2338 |
| Activity 12m (games) | 75 | 365 |
Best Win
Jacek Tomczak
Marcin Sieciechowicz
Highest-rated opponent ever beaten · STD primary, rapid/blitz for context
All Meetings (24)
Common Opponents
Tournaments Both Played
Cohort Position
Each player compared to active peers (same federation, ±75 Elo, played in last 12 months).
Jacek Tomczak
Marcin Sieciechowicz