CChessStats

European Union Youth Championship 2025 - U14

Open SwissStandard

28 players participated in this 9-round tournament, held from 19 Aug 2025 to 27 Aug 2025 in Roznov pod Radhostem, Czech Republic. 6 titled players from 8 federations. Top 10 Elo average was 1945, and top seed was Andrii Diachek (🇵🇱 POL, FM, 2223).

Andrii Diachek (🇵🇱 POL, FM, 2223) won with 7.0/9, ahead of Vlad Petroff (6.5) and Simon Matejka (6.0). Diachek won solo starting round 7.

The biggest upset came in round 7: Daniel Belocky (1683) beat Boris Pogorelskiy (1978), a +295-point gap.

Location
🇨🇿Roznov pod Radhostem, Czech Republic
Dates
19 Aug 2025 → 27 Aug 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 9 rounds
Top seed
🇵🇱FMAndrii Diachek2223
Avg top 10
1,945
Participants
28
Titled players · 6
FM×3
CM×1
WFM×1
WCM×1
Federations · 8 represented
🇨🇿Czech Republic×11
🇸🇰Slovakia×7
🇵🇱Poland×3
🇩🇪Germany×2
🇷🇴Romania×2
🇪🇪Estonia×1
🇭🇺Hungary×1
🇨🇾Cyprus×1
Top 3
  • 🥇
    FMAndrii Diachek
    🇵🇱POL·2223
    7.0pts·2145perf-24.0
  • 🥈
    FMVlad Petroff
    🇷🇴ROU·2081
    6.5pts·2044perf-2.3
  • 🥉
    CMSimon Matejka
    🇸🇰SVK·1950
    6.0pts·1992perf+24.4

How it unfolded

Top 6 · 9 rounds

FM Andrii Diachek led from R7; +0.5-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R7.

Co-leaders
12
5
6
2
4
2
1
1
1
2.54.579R1R2R3R4R5R6R7R8R9
Diachek7Petroff6.5Belocky6Komarek6Pogorelskiy6Matejka6
R7–R9 · LEAD HELD

FM Andrii Diachek held the sole lead from R7 through R9 without losing it.

R5 · HEAD-TO-HEAD · WINNER VS 2ND

FM Andrii Diachek drew with FM Vlad Petroff (Black).

R1–R9 · UNBEATEN

FM Andrii Diachek went unbeaten across 9 games (R1–R9).

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1FMAndrii Diachek*
½
1
1
2FMVlad Petroff
½
*
½
1
3Daniel Belocky
0
½
*—
4Tobias Komarek
0
0
—*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7R8R9PtsBu C1BuSBPerfΔ
1Diachek, AndriiFM2223POL+6N+8B=5N+9B=2N+3B+4N=11B=7N7.046.551.540.002145-24.0
2Petroff, VladFM2081ROU+25B+14N=3B+4N=1B−5N+15B=6N+9B6.545.048.032.502044-2.3
3Matejka, SimonCM1950SVK+24N+7B=2N=5B+8N−1N+16B=4B=6N6.047.050.030.751992+24.4
4Komarek, Tobias1897CZE=10N+17B+11N−2B+9N+7B−1B=3N+5N6.046.050.531.502005+56.0
5Pogorelskiy, Boris1978CZE+20N+18B=1B=3N+7N+2B−6B+10N−4B6.046.050.031.501959+1.1
6Belocky, Daniel1683CZE−1B+26N=8N+20B=10N+24B+5N=2B=3B6.043.045.026.501938+105.3
7Hujova, Tess1709CZE+28B−3N+21B+12N−5B−4N+19B+13N=1B5.543.044.022.501846+54.0
8Rzadkowska, KajaWFM1878POL+26B−1N=6B+13N−3B−12N+24N+16B+14N5.541.043.022.001846-10.0
9Bundan, EdwardFM1976GER+12B=15N+16B−1N−4B+10B=11N+18B−2N5.043.547.523.251882-36.8
10Malureanu, Andrei1585ROU=4B+13N=15B=16N=6B−9N+12B−5B+18N5.042.046.024.501839+107.6
11Migalko, Dmitriy1916CZE+21B−16N−4B+19N+12B=15N=9B=1N=17B5.040.544.523.501801-42.2
12Amvrosiadis, Themistoklis1625CYP−9N+22B+18N−7B−11N+8B−10N+24B+19B5.038.041.020.501751+52.8
13Debowska, OlgaWCM1783POL=17N−10B+19N−8B+23N=18B+14N−7B+22N5.037.040.520.251641-56.4
14Bolla, Zsofia1772HUN+19B−2B−24N+17B+21N=16N−13B+15N−8B4.538.541.519.251714-27.2
15Janouskova, Eliska1748CZE+22N=9B=10N=24B=18N=11B−2N−14B+23N4.537.540.518.501726-11.2
16Mojzisova, Barbora1740CZE+27N+11B−9N=10B=24N=14B−3N−8N+25B4.537.039.016.251754+3.6
17Myronova, Sofia1496CZE=13B−4N+23B−14N=20N+21B−18N+27B=11N4.536.038.016.501658+45.6
18Plechacek, Matej1741CZE+23B−5N−12B+27N=15B=13N+17B−9N−10B4.038.540.514.751584-59.6
19Jenikova, Sabina1491CZE−14N+25N−13B−11B+22N+20B−7N+26B−12N4.036.038.013.001629+58.8
20Polackova, Eva1640SVK−5B=23N+25B−6N=17B−19N+28N−22B+27N4.033.034.010.001436-65.6
21Chmelikova, Julia1590SVK−11N+27B−7N+22B−14B−17N+23N−25B+28B4.032.033.010.501397-56.8
22Kubalova, Nikol1453CZE−15B−12N+28B−21N−19B+25N+26B+20N−13B4.031.532.510.001544+30.0
23Arndt, Alex0GER−18N=20B−17N+26B−13B+27N−21B+28N−15B3.530.031.07.0014120.0
24Kostov, Rubin1621SVK−3B+28N+14B=15N=16B−6N−8B−12N−26N3.038.039.010.001543-34.4
25Stricova, Julia Nela1675SVK−2N−19B−20N+28B−26N−22B+27B+21N−16N3.031.032.07.001332-116.4
26Voronova, Anastassia1502EST−8N−6B−27N−23N+25B−28B−22N−19N+24B2.031.032.06.001508-1.2
27Kozakova, Tatiana0SVK−16B−21N+26B−18B+28N−23B−25N−17N−20B2.029.530.53.0013160.0
28Sutarik, Andrej0SVK−7N−24B−22N−25N−27B+26N−20B−23B−21N1.029.031.02.0012890.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets
European Union Youth Championship 2025 - U14 — Roznov pod Radhostem, Czech Republic | Chess Tournament Results | ChessStats