CChessStats

21st Summer Opener - Group B

Open SwissStandard

25 players participated in this 7-round tournament, held from 26 Jun 2025 to 29 Jun 2025 in Budapest, Hungary. 1 titled players from 6 federations. Top 10 Elo average was 1760, and top seed was Istvan Hajdu (🇭🇺 HUN, CM, 1840).

Ferenc Beres (🇭🇺 HUN, 1761) won with 6.0/7, ahead of Istvan Hajdu (5.0) and Bence Peter Szabo (5.0). Beres shared the lead from round 6 and broke clear in the final round.

The biggest upset came in round 6: Marton Levente Majzik (1557) beat Youssef Merzoug (1798), a +241-point gap.

Location
🇭🇺Budapest, Hungary
Dates
26 Jun 2025 → 29 Jun 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 7 rounds
Top seed
🇭🇺CMIstvan Hajdu1840
Avg top 10
1,760
Participants
25
Titled players · 1
CM×1
Federations · 6 represented
🇭🇺Hungary×20
🇮🇹Italy×1
🇧🇪Belgium×1
🇮🇳India×1
🇦🇺Australia×1
🇷🇴Romania×1
Top 3
  • 🥇
    Ferenc Beres
    🇭🇺HUN·1761
    6.0pts·1952perf+26.6
  • 🥈
    CMIstvan Hajdu
    🇭🇺HUN·1840
    5.0pts·1840perf+2.4
  • 🥉
    Bence Peter Szabo
    🇭🇺HUN·1740
    5.0pts·1813perf+12.4

How it unfolded

Top 6 · 7 rounds

Ferenc Beres led from R7; +1.0-point edge over the runner-up.

Co-leaders
11
4
2
1
1
2
1
23.55.57R1R2R3R4R5R6R7Kovacs takes leadBeres takes lead
Beres6Hajdu5Szabo5Kovacs5Dal Bianco4.5Jensen4.5
R5 · LEADER CHANGE28 Jun

Balazs Kovacs takes the sole lead (4.5/5).

2× WIN STREAK · 3+3 wins

Ferenc Beres posted 3 in a row (R1–R3) and 3 in a row (R5–R7) — total 6 wins.

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Ferenc Beres*——
1
2CMIstvan Hajdu—*
0
½
3Bence Peter Szabo—
1
*
½
4Balazs Kovacs
0
½
½
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7PtsBu C1BuSBPerfΔ
1Beres, Ferenc1761HUN+15B+6N+9B−7B+14N+8N+4B6.024.527.523.501952+26.6
2Hajdu, IstvanCM1840HUN+19B=4N=5B+6N−3B+10N+7B5.026.529.019.251840+2.4
3Szabo, Bence Peter1740HUN+10B+14N−7N+20B+2N=4B=5N5.025.027.018.251813+12.4
4Kovacs, Balazs1724ROU+23B=2B+22N+11N+7B=3N−1N5.025.026.015.001895+56.8
5Dal Bianco, Nicola1749ITA+16N=12B=2N+10BF+7N=3B4.524.527.517.251862+18.4
6Jensen, Jack1682AUS+17N−1B+16N−2B=13N+11B+14B4.524.027.014.251685+0.4
7Varhegyi, Abel1779HUN+20B+8N+3B+1N−4N−5B−2N4.029.531.517.001784+1.8
8Farkas, Adam1715HUN+25N−7B+15N−14B+20N−1B+16B4.021.021.58.501709-1.2
9Kucza, Abel1627HUN+18B+22N−1N−12B−10N+21B+15N4.020.522.09.001664+11.6
10Verma Vivaan1432IND−3N+17B+19N−5N+9B−2B=12N3.525.027.511.251666+61.2
11Partenyi, Attila1765HUN=13N+18B+12N−4BF−6N+20B3.523.525.59.751736-4.0
12Barak, Peter Balint1712HUN+24B=5N−11B+9N=18B−14N=10B3.521.022.010.251675-9.2
13Majzik, Marton Levente1557HUN=11B=19N−14B+24N=6B+18NF3.517.017.08.751822+27.6
14Uri, Maximilian Tamas0HUNF−3B+13N+8N−1B+12B−6N3.026.526.511.0016970.0
15Smaraglay, Laszlo1544HUN−1N+25B−8B−18N+19N+24B−9B3.020.020.54.001475-8.0
16Orosz, Timea1501HUN−5B+23N−6B+22BF+20N−8N3.017.517.54.501625+30.4
17Turai, David Abel0HUN−6B−10NF+23N−21B+25B+24N3.012.512.52.507590.0
18Merzoug, Youssef1798BEL−9N−11N+23B+15B=12N−13BF2.519.520.55.751493-79.2
19Alexa, Mate1658HUN−2N=13B−10B+21N−15B+22BF2.518.518.55.251472-41.9
20Tarko, Inez Eniko1600HUN−7N+21B+24N−3N−8B−16B−11N2.021.522.53.00902-73.6
21Nemeth-Nagy, Kristof0HUN−22B−20N+25B−19B+17N−9NF2.015.516.03.508550.0
22Barak, Peter Kalman1728HUN+21N−9B−4B−16N=23B−19NF1.517.517.52.50828-50.6
23Lovasz, Narina0HUN−4N−16B−18N−17B=22NF=25N1.015.515.51.0013640.0
24Por, Daniel0HUN−12NF−20B−13B+25N−15N−17B1.015.515.50.508050.0
25Mate-Kovacs, Benedek0HUN−8B−15N−21NF−24B−17N=23B0.514.014.00.508330.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets
21st Summer Opener - Group B (2025) — Budapest, Hungary | Chess Tournament Results | ChessStats