317th YMCA Spring 2026-D Round 1-4
Round-RobinStandard
11 players participated in this 11-round tournament, held from 07 Apr 2026 to 28 Apr 2026 in Warszawa, Poland. Top 10 Elo average was 1339, and top seed was Janusz Wiktorowski (🇵🇱 POL, 1551).
Grzegorz Chojnacki (🇵🇱 POL, 1475) won with 3.5/11, ahead of Aisha Martin (3.0) and Janusz Wiktorowski (2.5).
Location
🇵🇱Warszawa, Poland
Dates
07 Apr 2026 → 28 Apr 2026
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Round-robin · 11 rounds
Federations · 1 represented
🇵🇱Poland×11
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 11 · 11 rounds3 leader changes shaped the tournament; Chojnacki pulled away in R10.
Co-leaders
3
2
1
1
1
1
1
1
1
1
1
Chojnacki#1Martin#2Wiktorowski#4Dabrowski#3Przybylik#7Piwko#5Skibinski#6Morczynski#8Sloniewski#9Mackiewicz#10Moszczynski-Petkowski#11
R4 · LEADER CHANGE28 Apr
Grzegorz Chojnacki takes the sole lead (3.5/4).
WIN STREAKS · 2 top finishers
Grzegorz Chojnacki 3 wins (R2–R4)Aisha Martin 3 wins (R1–R3)
Cross-table
| # | Player | Elo | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | Pts | SB | Bh | Δ Elo | Perf |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 🇵🇱Chojnacki, Grzegorz | 1475 | * | — | — | — | — | ½ | 1 | 1 | — | — | 1 | 3.5 | 2.75 | 3.5 | +18.4 | 2251 |
| 2 | 🇵🇱Martin, Aisha | 1481 | — | * | — | — | — | — | 1 | 1 | — | — | 1 | 3.0 | 2.00 | 2.0 | +36.4 | 2251 |
| 4 | 🇵🇱Wiktorowski, Janusz | 1551 | — | — | * | — | — | 1 | 1 | — | — | ½ | — | 2.5 | 2.75 | 3.0 | +4.8 | 1648 |
| 3 | 🇵🇱Dabrowski, Leszek | 1491 | — | — | — | * | 1 | 0 | 0 | — | — | 1 | — | 2.0 | 2.50 | 5.0 | +8.0 | 1596 |
| 7 | 🇵🇱Przybylik, Mariusz | 1501 | — | — | — | 0 | * | 1 | — | — | — | 1 | — | 2.0 | 2.00 | 4.0 | -1.6 | 1476 |
| 5 | 🇵🇱Piwko, Michal | 0 | ½ | — | 0 | 1 | 0 | * | — | — | — | — | — | 1.5 | 3.75 | 10.0 | 0.0 | 1420 |
| 9 | 🇵🇱Sloniewski, Wojciech | 1452 | 0 | 0 | 0 | 1 | — | — | * | — | — | — | — | 1.0 | 2.00 | 11.0 | -29.2 | 1309 |
| 6 | 🇵🇱Skibinski, Marian | 0 | 0 | 0 | — | — | — | — | — | * | 1 | — | — | 1.0 | 1.00 | 7.5 | 0.0 | 1379 |
| 8 | 🇵🇱Morczynski, Bartosz | 1543 | — | — | — | — | — | — | — | 0 | * | — | 1 | 1.0 | 0.00 | 1.0 | +14.4 | 2248 |
| 10 | 🇵🇱Mackiewicz, Anna | 1455 | — | — | ½ | 0 | 0 | — | — | — | — | * | — | 0.5 | 1.25 | 6.5 | -15.0 | 1243 |
| 11 | 🇵🇱Moszczynski-Petkowski, Rafal | 1444 | 0 | 0 | — | — | — | — | — | — | 0 | — | * | 0.0 | 0.00 | 7.5 | -50.8 | 704 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Martin, AishaPOL+36.43.0 pts · #2
- 2Chojnacki, GrzegorzPOL+18.43.5 pts · #1
- 3Morczynski, BartoszPOL+14.41.0 pts · #8
Top rating losers
- 1Moszczynski-Petkowski, RafalPOL-50.80.0 pts · #11
- 2Sloniewski, WojciechPOL-29.21.0 pts · #9
- 3Mackiewicz, AnnaPOL-15.00.5 pts · #10