306th YMCA Autumn 2025-A Round 11-13
Round-RobinStandard
11 players participated in this 13-round tournament, held from 05 Dec 2025 to 19 Dec 2025 in Warszawa, Poland. 1 titled players from 2 federations. Top 10 Elo average was 2085, and top seed was Bartlomiej Rozycki (🇵🇱 POL, 2197).
Witold Kowalski (🇵🇱 POL, 2087) won with 2.5/13, ahead of Aleksander Choroszej (2.0) and Kacper Majek (1.5). Kowalski shared the lead from round 12 and broke clear in the final round.
The biggest upset came in round 11: Pawel Kasperkiewicz (1937) beat Wadym Korsun (2056), a +119-point gap.
Location
🇵🇱Warszawa, Poland
Dates
05 Dec 2025 → 19 Dec 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Round-robin · 13 rounds
Titled players · 1
IM×1
Federations · 2 represented
🇵🇱Poland×10
🇫🇷France×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 11 · 13 roundsWitold Kowalski led from R13 onwards, the runner-up race stayed tight. Title race converged from 12 co-leaders at R4 to 1 by R13.
Co-leaders
13
13
12
12
12
12
12
11
2
2
1
2
1
Kowalski#1Choroszej#2Rozycki#3Majek#4Laffonta#5Podgorski#6Kasperkiewicz#7Nowak#8Korsun#9Flis#10Chrzaszcz#11
R13 · LEADER CHANGE19 Dec
Witold Kowalski takes the sole lead (2.5/13).
Cross-table
| # | Player | Elo | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | Pts | SB | Bh | Δ Elo | Perf |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 🇵🇱Kowalski, Witold | 2087 | * | — | ½ | — | 1 | — | — | — | 1 | — | — | 2.5 | 1.75 | 2.5 | +33.2 | 2319 |
| 2 | 🇵🇱Choroszej, Aleksander | 2072 | — | * | — | — | — | — | — | 1 | — | 1 | — | 2.0 | 0.50 | 0.5 | +20.4 | 2881 |
| 4 | 🇵🇱Majek, Kacper | 2098 | ½ | — | * | — | — | — | — | 1 | — | — | — | 1.5 | 1.75 | 3.0 | +12.0 | 2328 |
| 3 | 🇵🇱Rozycki, Bartlomiej | 2197 | — | — | — | * | — | — | — | ½ | — | 1 | — | 1.5 | 0.25 | 0.5 | +4.0 | 2274 |
| 6 | 🇵🇱Podgorski, Maciej | 2030 | 0 | — | — | — | * | — | — | — | 1 | — | — | 1.0 | 0.00 | 2.5 | +1.0 | 2049 |
| 5 | 🇫🇷Laffonta, Matthias | 2135 | — | — | — | — | — | * | 1 | — | — | — | — | 1.0 | 1.00 | 1.0 | +4.8 | 2737 |
| 7 | 🇵🇱Kasperkiewicz, Pawel | 1937 | — | — | — | — | — | 0 | * | — | — | — | 1 | 1.0 | 0.00 | 1.0 | +8.4 | 2096 |
| 8 | 🇵🇱IMNowak, Lukasz | 2183 | — | 0 | 0 | ½ | — | — | — | * | — | — | — | 0.5 | 0.75 | 5.0 | -12.5 | 1850 |
| 10 | 🇵🇱Flis, Piotr | 2011 | 0 | — | — | — | 0 | — | — | — | * | — | — | 0.0 | 0.00 | 3.5 | -17.2 | 1259 |
| 11 | 🇵🇱Chrzaszcz, Malvina | 1978 | — | 0 | — | 0 | — | — | — | — | — | * | — | 0.0 | 0.00 | 3.5 | -11.8 | 1335 |
| 9 | 🇵🇱Korsun, Wadym | 2056 | — | — | — | — | — | — | 0 | — | — | — | * | 0.0 | 0.00 | 1.0 | -26.4 | 1137 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Kowalski, WitoldPOL+33.22.5 pts · #1
- 2Choroszej, AleksanderPOL+20.42.0 pts · #2
- 3Majek, KacperPOL+12.01.5 pts · #4
Top rating losers
- 1Korsun, WadymPOL-26.40.0 pts · #9
- 2Flis, PiotrPOL-17.20.0 pts · #10
- 3Nowak, LukaszIMPOL-12.50.5 pts · #8
Biggest upsets
- R11+119 Elo gap
- R13+111 Elo gap