Mistrzostwa Plocka w szachach klasycznych 2025 FIDE - open B
Open SwissStandard
28 players participated in this 7-round tournament, held from 15 Nov 2025 to 16 Nov 2025 in Plock, Poland. Top 10 Elo average was 1550, and top seed was Norbert Golebiewski (🇵🇱 POL, 1641).
Grzegorz Renn (🇵🇱 POL, 1610) won with 5.5/7, ahead of Stanislaw Nogal (5.5) and Stefan Seliwiak (5.0). Renn won on tie-break after catching the field in the final round.
The biggest upset came in round 3: Stefan Seliwiak (1457) beat Norbert Golebiewski (1641), a +184-point gap.
Location
🇵🇱Plock, Poland
Dates
15 Nov 2025 → 16 Nov 2025
Time control
Standard: All Moves in 45 Min. Incr. 15 Sec. / /
System
Swiss · 7 rounds
Federations · 1 represented
🇵🇱Poland×24
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 7 roundsTight race until R7; 2 players tied at 5.5/7, decided on Buchholz.
Co-leaders
12
4
2
1
1
1
2
R7 · TIEBREAK CLUSTER
2 players finish on 5.5/7. Renn takes the title on Buchholz Cut1 (27.0).
WIN STREAKS · 2 top finishers
Grzegorz Renn 3 wins (R5–R7)Stanislaw Nogal 4 wins (R1–R4)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Grzegorz Renn | * | — | — | ½ |
| 2Stanislaw Nogal | — | * | ½ | — |
| 3Stefan Seliwiak | — | ½ | * | — |
| 4Aleksander Brzozka | ½ | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Renn, Grzegorz | 1610 | POL | +20B | +9N | −6B | =4B | +11N | +7B | +8N | 5.5 | 27.0 | 30.0 | 23.00 | 1764 | +38.0 |
| 2 | Nogal, Stanislaw | 1515 | POL | +19B | +28N | +5N | +6B | =7N | =8B | =3N | 5.5 | 26.5 | 27.5 | 20.50 | 1682 | +44.8 |
| 3 | Seliwiak, Stefan | 1457 | POL | +13B | =10N | +27B | =7B | =6N | +9N | =2B | 5.0 | 27.5 | 29.0 | 19.50 | 1682 | +72.4 |
| 4 | Brzozka, Aleksander | 0 | POL | =14B | +15N | +11B | =1N | −8B | +17N | +6B | 5.0 | 25.5 | 28.5 | 19.50 | 1555 | 0.0 |
| 5 | Zalewski, Borys | 1543 | POL | +16B | +18N | −2B | −17N | +19B | +14B | +12N | 5.0 | 22.5 | 25.5 | 17.00 | 716 | -21.6 |
| 6 | Wrzodak, Natalia | 1526 | POL | +23N | +21B | +1N | −2N | =3B | +10B | −4N | 4.5 | 28.5 | 31.0 | 18.00 | 1632 | +22.0 |
| 7 | Machczynski, Milosz | 1564 | POL | +17B | =11N | +10B | =3N | =2B | −1N | +18N | 4.5 | 27.5 | 30.5 | 17.75 | 1517 | -13.2 |
| 8 | Jedreasz, Adam | 1559 | POL | −21N | +23B | +19N | +18B | +4N | =2N | −1B | 4.5 | 25.0 | 27.5 | 16.25 | 1368 | -20.8 |
| 9 | Ladon, Jan | 1513 | POL | +25N | −1B | +21N | +12B | +14N | −3B | =11N | 4.5 | 25.0 | 27.0 | 14.50 | 1228 | -44.0 |
| 10 | Brzezinski, Hubert | 1569 | POL | +26N | =3B | −7N | +15B | +17B | −6N | +22N | 4.5 | 23.0 | 24.5 | 13.00 | 1244 | -48.4 |
| 11 | Trzcinski, Brajan | 1439 | POL | +24N | =7B | −4N | +22B | −1B | +15N | =9B | 4.0 | 25.5 | 28.0 | 13.00 | 1440 | +0.4 |
| 12 | Kowalczyk, Blazej | 0 | POL | =27B | =14N | +28B | −9N | +?B | +16N | −5B | 4.0 | 19.0 | 19.0 | 7.00 | 1298 | 0.0 |
| 13 | Indrian, Wojciech | 0 | POL | −3N | +26B | −18B | =20N | =?B | +?N | +17B | 4.0 | 15.5 | 15.5 | 6.00 | 657 | 0.0 |
| 14 | Mrowinski, Milosz | 0 | POL | =4N | =12B | +20B | +27N | −9B | −5N | =16B | 3.5 | 25.0 | 26.5 | 10.75 | 1446 | 0.0 |
| 15 | Dabrowski, Wiktor | 0 | POL | =22N | −4B | +26N | −10N | +23B | −11B | +?N | 3.5 | 20.0 | 20.0 | 5.25 | 704 | 0.0 |
| 16 | FIDE 21005680 | 0 | — | −5N | −?B | +24N | +28B | +18N | −12B | =14N | 3.5 | 19.0 | 19.0 | 8.25 | 748 | 0.0 |
| 17 | Renn, Piotr | 0 | POL | −7N | +24B | +?N | +5B | −10N | −4B | −13N | 3.0 | 25.5 | 25.5 | 7.50 | 1436 | 0.0 |
| 18 | Renn, Urszula | 0 | POL | +?B | −5B | +13N | −8N | −16B | +23N | −7B | 3.0 | 24.0 | 24.0 | 6.50 | 760 | 0.0 |
| 19 | Andrzejewski, Filip | 0 | POL | −2N | +?N | −8B | +21B | −5N | −20N | +26B | 3.0 | 22.5 | 22.5 | 4.50 | 744 | 0.0 |
| 20 | FIDE 91133831 | 0 | — | −1N | +25B | −14N | =13B | −22N | +19B | =23N | 3.0 | 21.0 | 23.0 | 8.25 | 806 | 0.0 |
| 21 | Rutkowski, Dawid | 0 | POL | +8B | −6N | −9B | −19N | +28N | −22B | +25N | 3.0 | 21.0 | 22.0 | 7.50 | 1414 | 0.0 |
| 22 | FIDE 545051011 | 0 | — | =15B | −27N | F | −11N | +20B | +21N | −10B | 2.5 | 19.5 | 19.5 | 7.75 | 750 | 0.0 |
| 23 | Dabrowska, Antonina | 0 | POL | −6B | −8N | +?B | +?N | −15N | −18B | =20B | 2.5 | 18.5 | 18.5 | 1.50 | 747 | 0.0 |
| 24 | Kopcinski, Mateusz | 0 | POL | −11B | −17N | −16B | =26B | +?N | −?N | +?B | 2.5 | 12.0 | 12.0 | 0.75 | 639 | 0.0 |
| 25 | FIDE 545051003 | 0 | — | −9B | −20N | −?B | −?N | +26N | +28B | −21B | 2.0 | 13.0 | 13.0 | 2.50 | 723 | 0.0 |
| 26 | Ponikowski, Witold | 0 | POL | −10B | −13N | −15B | =24N | −25B | +?N | −19N | 1.5 | 19.5 | 19.5 | 1.25 | 769 | 0.0 |
| 27 | Golebiewski, Norbert | 1641 | POL | =12N | +22B | −3N | −14B | — | — | — | 1.5 | 12.5 | 15.0 | 4.50 | 657 | -29.6 |
| 28 | Zabielski, Antoni | 0 | POL | +?B | −2B | −12N | −16N | −21B | −25N | −?B | 1.0 | 18.0 | 18.0 | 0.00 | 716 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Seliwiak, StefanPOL+72.45.0 pts · #1
- 2Nogal, StanislawPOL+44.85.5 pts · #3
- 3Renn, GrzegorzPOL+38.05.5 pts · #2
Top rating losers
- 1Brzezinski, HubertPOL-48.44.5 pts · #14
- 2Ladon, JanPOL-44.04.5 pts · #11
- 3Golebiewski, NorbertPOL-29.61.5 pts · #23
Biggest upsets
- R3+184 Elo gap