309th YMCA Autumn 2025-D Round 1
Round-RobinStandard
11 players participated in this 1-round tournament, held on 23 Sept 2025 in Warszawa, Poland. Top 10 Elo average was 1483, and top seed was Marcin Dzierzko (🇵🇱 POL, 1563).
Rafal Moszczynski-Petkowski (🇵🇱 POL, 1426) won with 1.0/1, ahead of Witold Florczak (1.0) and Marcin Dzierzko (1.0). Moszczynski-Petkowski won on tie-break after catching the field in the final round.
Location
🇵🇱Warszawa, Poland
Dates
23 Sept 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Round-robin · 1 rounds
Federations · 1 represented
🇵🇱Poland×11
Top 3
- 🥇
- 🥈
- 🥉
Cross-table
| # | Player | Elo | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | Pts | SB | Bh | Δ Elo | Perf |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 🇵🇱Moszczynski-Petkowski, Rafal | 1426 | * | — | — | — | — | — | — | — | 1 | — | — | 1.0 | 0.00 | 0.0 | +20.8 | 2246 |
| 2 | 🇵🇱Florczak, Witold | 1449 | — | * | — | — | — | — | — | — | — | — | 1 | 1.0 | 0.00 | 0.0 | +11.0 | 2273 |
| 3 | 🇵🇱Dzierzko, Marcin | 1563 | — | — | * | — | — | — | — | — | — | 1 | — | 1.0 | 0.00 | 0.0 | +14.4 | 2262 |
| 5 | 🇵🇱Chojnacki, Grzegorz | 1447 | — | — | — | * | — | — | ½ | — | — | — | — | 0.5 | 0.25 | 0.5 | -1.6 | 1482 |
| 6 | 🇵🇱Matyszkiewicz, Radoslaw | 1550 | — | — | — | — | * | ½ | — | — | — | — | — | 0.5 | 0.25 | 0.5 | -0.4 | 1537 |
| 7 | 🇵🇱Przybylik, Mariusz | 1534 | — | — | — | — | ½ | * | — | — | — | — | — | 0.5 | 0.25 | 0.5 | +0.4 | 1550 |
| 8 | 🇵🇱Dabrowski, Leszek | 1479 | — | — | — | ½ | — | — | * | — | — | — | — | 0.5 | 0.25 | 0.5 | +0.8 | 1511 |
| 4 | 🇵🇱Grad, Krzysztof | 0 | — | — | — | — | — | — | — | * | — | — | — | 0.5 | 0.00 | 0.0 | 0.0 | 1400 |
| 9 | 🇵🇱Golebiowski, Sebastian | 1447 | 0 | — | — | — | — | — | — | — | * | — | — | 0.0 | 0.00 | 1.0 | -20.8 | 629 |
| 10 | 🇵🇱Sloniewski, Wojciech | 1462 | — | — | 0 | — | — | — | — | — | — | * | — | 0.0 | 0.00 | 1.0 | -14.4 | 767 |
| 11 | 🇵🇱Martin, Aisha | 1469 | — | 0 | — | — | — | — | — | — | — | — | * | 0.0 | 0.00 | 1.0 | -22.0 | 635 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Moszczynski-Petkowski, RafalPOL+20.81.0 pts · #1
- 2Dzierzko, MarcinPOL+14.41.0 pts · #3
- 3Florczak, WitoldPOL+11.01.0 pts · #2
Top rating losers
- 1Martin, AishaPOL-22.00.0 pts · #11
- 2Golebiowski, SebastianPOL-20.80.0 pts · #9
- 3Sloniewski, WojciechPOL-14.40.0 pts · #10