306th YMCA Autumn 2025-A Round 2-5
Round-RobinStandard
13 players participated in this 5-round tournament, held from 03 Oct 2025 to 24 Oct 2025 in Warszawa, Poland. 1 titled players from 2 federations. Top 10 Elo average was 2094, and top seed was Lukasz Nowak (🇵🇱 POL, IM, 2210).
Matthias Laffonta (🇫🇷 FRA, 2113) won with 3.5/5, ahead of Bartosz Warszawski (3.0) and Wadym Korsun (3.0). Laffonta broke clear in the final round.
The biggest upset came in round 4: Malvina Chrzaszcz (1969) beat Lukasz Nowak (IM, 2210), a +241-point gap.
Location
🇵🇱Warszawa, Poland
Dates
03 Oct 2025 → 24 Oct 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Round-robin · 5 rounds
Titled players · 1
IM×1
Federations · 2 represented
🇵🇱Poland×12
🇫🇷France×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 13 · 5 roundsMatthias Laffonta led from R5 onwards, the runner-up race stayed tight. Title race converged from 2 co-leaders at R4 to 1 by R5.
Co-leaders
2
6
3
2
1
Laffonta#1Warszawski#2Korsun#3Kowalski#4Rozycki#5Podgorski#6Chrzaszcz#7Choroszej#8Majek#9Kasperkiewicz#10Nowak#11Flis#12Serafin#13
R5–R5 · LEAD HELD
Matthias Laffonta held the sole lead from R5 through R5 without losing it.
Cross-table
| # | Player | Elo | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | Pts | SB | Bh | Δ Elo | Perf |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 🇫🇷Laffonta, Matthias | 2113 | * | — | — | — | 1 | — | 1 | 1 | — | ½ | — | — | — | 3.5 | 6.00 | 6.5 | +24.8 | 2402 |
| 2 | 🇵🇱Warszawski, Bartosz | 2132 | — | * | — | 1 | 0 | 1 | — | — | — | 1 | — | — | — | 3.0 | 5.50 | 7.5 | +8.6 | 2220 |
| 3 | 🇵🇱Korsun, Wadym | 2021 | — | — | * | ½ | 1 | — | — | ½ | — | 1 | — | — | — | 3.0 | 5.00 | 7.0 | +47.2 | 2247 |
| 4 | 🇵🇱Kowalski, Witold | 2071 | — | 0 | ½ | * | — | 1 | — | — | — | — | 1 | — | — | 2.5 | 4.50 | 9.0 | +22.4 | 2178 |
| 6 | 🇵🇱Podgorski, Maciej | 2017 | 0 | 1 | 0 | — | * | 0 | — | — | — | — | 1 | — | — | 2.0 | 4.00 | 12.5 | -0.4 | 2017 |
| 7 | 🇵🇱Chrzaszcz, Malvina | 1969 | — | 0 | — | 0 | 1 | * | — | — | — | — | 1 | — | — | 2.0 | 3.00 | 8.5 | +14.6 | 2108 |
| 5 | 🇵🇱Rozycki, Bartlomiej | 2119 | 0 | — | — | — | — | — | * | — | 0 | — | — | 1 | 1 | 2.0 | 2.00 | 7.0 | -9.2 | 2030 |
| 8 | 🇵🇱Choroszej, Aleksander | 2077 | 0 | — | ½ | — | — | — | — | * | — | — | — | 1 | — | 1.5 | 2.50 | 7.5 | -4.8 | 2019 |
| 9 | 🇵🇱Majek, Kacper | 2124 | — | — | — | — | — | — | 1 | — | * | — | — | ½ | 0 | 1.5 | 2.50 | 4.0 | -9.8 | 2000 |
| 12 | 🇵🇱Flis, Piotr | 2052 | ½ | 0 | 0 | — | — | — | — | — | — | * | 0 | ½ | — | 1.0 | 2.25 | 11.5 | -26.0 | 1840 |
| 11 | 🇵🇱IMNowak, Lukasz | 2210 | — | — | — | 0 | 0 | 0 | — | — | — | 1 | * | — | — | 1.0 | 1.00 | 7.5 | -19.5 | 1834 |
| 10 | 🇵🇱Kasperkiewicz, Pawel | 1923 | — | — | — | — | — | — | 0 | 0 | ½ | ½ | — | * | — | 1.0 | 1.25 | 6.0 | -2.2 | 1900 |
| 13 | 🇵🇱Serafin, Franciszek | 1957 | — | — | — | — | — | — | 0 | — | 1 | — | — | — | * | 1.0 | 1.50 | 3.5 | +17.2 | 2122 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Korsun, WadymPOL+47.23.0 pts · #3
- 2Laffonta, MatthiasFRA+24.83.5 pts · #1
- 3Kowalski, WitoldPOL+22.42.5 pts · #4
Top rating losers
- 1Flis, PiotrPOL-26.01.0 pts · #12
- 2Nowak, LukaszIMPOL-19.51.0 pts · #11
- 3Majek, KacperPOL-9.81.5 pts · #9
Biggest upsets
- R4+241 Elo gap
- R2+193 Elo gap
- R3+167 Elo gap