Klasyfikacyjny Turniej Szachowy - Grupa A
Open SwissStandard
13 players participated in this 5-round tournament, held from 25 Apr 2026 to 26 Apr 2026 in Legnica, Poland. Top 10 Elo average was 1709, and top seed was Marek Lasok (🇵🇱 POL, 2009).
Marek Lasok (🇵🇱 POL, 2009) won with 5.0/5, ahead of Piotr Meller (4.0) and Kacper Bochenek (3.5). Lasok won solo starting round 4.
The biggest upset came in round 2: Slawomir Kata (1667) beat Seweryn Stoklosa (1946), a +279-point gap.
Location
🇵🇱Legnica, Poland
Dates
25 Apr 2026 → 26 Apr 2026
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 5 rounds
Federations · 1 represented
🇵🇱Poland×13
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 5 roundsMarek Lasok led from R4; +1.0-point edge over the runner-up.
Co-leaders
5
3
2
1
1
R4–R5 · LEAD HELD
Marek Lasok never relinquished the lead after R4; final gap +1.0 over the runner-up.
R3 · HEAD-TO-HEAD · WINNER VS 2ND
Marek Lasok beat Piotr Meller (White).
R1–R5 · WIN STREAK
Marek Lasok won 5 in a row (R1–R5).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Marek Lasok | * | 1 | — | 1 |
| 2Piotr Meller | 0 | * | — | 1 |
| 3Kacper Bochenek | — | — | * | 0 |
| 4Slawomir Kata | 0 | 0 | 1 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Lasok, Marek | 2009 | POL | +5B | +9N | +2B | +4N | +6B | 5.0 | 12.5 | 13.5 | 13.50 | 2484 | +14.8 |
| 2 | Meller, Piotr | 1913 | POL | +10N | +7B | −1N | +5B | +4B | 4.0 | 13.5 | 14.5 | 9.50 | 1930 | +4.6 |
| 3 | Bochenek, Kacper | 1663 | POL | =8N | +13B | −4N | +9B | +7N | 3.5 | 8.5 | 9.0 | 5.00 | 1727 | +8.6 |
| 4 | Kata, Slawomir | 1667 | POL | +6B | +12N | +3B | −1B | −2N | 3.0 | 15.0 | 16.0 | 7.00 | 1873 | +50.8 |
| 5 | Kopinski, Miroslaw | 1624 | POL | −1N | +8B | +11N | −2N | +10B | 3.0 | 12.0 | 13.0 | 4.00 | 1745 | +13.2 |
| 6 | Krasicki, Boguslaw | 1475 | POL | −4N | +10B | +8N | =7B | −1N | 2.5 | 12.5 | 13.5 | 4.25 | 1632 | +18.4 |
| 7 | Czuba, Tadeusz | 1636 | POL | +11B | −2N | +9B | =6N | −3B | 2.5 | 11.0 | 12.0 | 3.25 | 1612 | -7.6 |
| 8 | Weryszko, Mariusz | 1470 | POL | =3B | −5N | −6B | =13N | +11N | 2.0 | 10.0 | 10.5 | 3.00 | 1487 | +4.0 |
| 9 | Pienio, Milena | 1547 | POL | F | −1B | −7N | −3N | +13B | 1.0 | 11.5 | 11.5 | 0.50 | 1511 | -10.8 |
| 10 | Strozyk, Bruno | 1510 | POL | −2B | −6N | +13N | −11B | −5N | 1.0 | 10.5 | 11.0 | 0.50 | 1368 | -38.4 |
| 11 | Sabuk, Jan | 1461 | POL | −7N | F | −5B | +10N | −8B | 1.0 | 8.5 | 8.5 | 1.00 | 1367 | -9.4 |
| 12 | Stoklosa, Seweryn | 1946 | POL | +13N | −4B | F | F | F | 1.0 | 3.5 | 3.5 | 0.50 | 1619 | -15.0 |
| 13 | Lisak, Jerzy | 1570 | POL | −12B | −3N | −10B | =8B | −9N | 0.5 | 7.5 | 8.5 | 1.00 | 1261 | -34.2 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Kata, SlawomirPOL+50.83.0 pts · #4
- 2Krasicki, BoguslawPOL+18.42.5 pts · #6
- 3Lasok, MarekPOL+14.85.0 pts · #1
Top rating losers
- 1Strozyk, BrunoPOL-38.41.0 pts · #11
- 2Lisak, JerzyPOL-34.20.5 pts · #13
- 3Stoklosa, SewerynPOL-15.01.0 pts · #9
Biggest upsets
- R2+279 Elo gap