CChessStats

SJEM U10 Final

Open SwissStandard

16 players participated in this 7-round tournament, held from 22 May 2026 to 25 May 2026 in Zurich, Switzerland. Top 10 Elo average was 1653, and top seed was Ramiz Shahmammadli (🇨🇭 SUI, 1752).

Robert Weis (🇨🇭 SUI, 1705) won with 6.0/7, ahead of Ilios Papageorgiou Martinella (5.0) and Elia Michel Zimmerli (5.0). Weis won solo starting round 5.

The biggest upset came in round 6: Narek Kakoyan (1488) beat David Sadeh (1656), a +168-point gap.

Location
🇨🇭Zurich, Switzerland
Dates
22 May 2026 → 25 May 2026
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 7 rounds
Top seed
🇨🇭Ramiz Shahmammadli1752
Avg top 10
1,653
Participants
16
Federations · 1 represented
🇨🇭Switzerland×16
Top 3

How it unfolded

Top 6 · 7 rounds

Robert Weis led from R5; +1.0-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.

Co-leaders
7
3
3
2
1
1
1
23.55.57R1R2R3R4R5R6R7
Weis6Papageorgiou Martinella5Zimmerli5Rosset4Aubier4Shahmammadli4
R5–R7 · LEAD HELD

Robert Weis never relinquished the lead after R5; final gap +1.0 over the runner-up.

R6 · HEAD-TO-HEAD · WINNER VS 2ND

Robert Weis drew with Ilios Papageorgiou Martinella (White).

R1–R7 · UNBEATEN

Robert Weis went unbeaten across 7 games (R1–R7).

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Robert Weis*
½
½
1
2Ilios Papageorgiou Martinella
½
*
½
—
3Elia Michel Zimmerli
½
½
*—
4Ruben Rosset
0
——*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7PtsBu C1BuSBPerfΔ
1Weis, Robert1705SUI+12N+4B=3N+7B+8N=2B+6N6.025.028.023.001922+65.2
2Papageorgiou Martinella, Ilios1671SUI+8N+5B−7N+11B=3N=1N+4B5.026.029.020.001799+48.8
3Zimmerli, Elia Michel1676SUI+14B+9N=1B+5N=2B−4N+7B5.026.028.018.501813+51.6
4Aubier, Garry1668SUI+6B−1N=14B=12N+5B+3B−2N4.027.029.015.501690+9.2
5Shahmammadli, Ramiz1752SUI+10B−2N+6B−3B−4N+14N+11B4.024.526.512.501658-32.8
6Rosset, Ruben1546SUI−4N+12B−5N+16B+7N+11B−1B4.023.524.510.501661+44.0
7Lohmiller, Felix1602SUI=16N+11B+2B−1N−6B+8N−3N3.526.527.512.001590-4.8
8Develey, Isaiah1554SUI−2B+10N+13B=14N−1B−7B+15N3.523.025.09.501612+22.4
9Kammerlander, Jan1628SUI+15B−3B−11N=13N+12B−10B+16N3.519.520.57.501567-22.8
10Vallot, Lucien1601SUI−5N−8B=16N+15B=13B+9N=12N3.519.020.09.001585-6.0
11Kudryavitskiy, Alexander1533SUI+13B−7N+9B−2N+14B−6N−5N3.023.025.08.501580+16.8
12Eykher, Leo1572SUI−1B−6N+15N=4B−9N+16N=10B3.023.024.06.751533-16.0
13Sadeh, David1656SUI−11N+16B−8N=9B=10N−15B+14N3.017.518.56.501494-62.0
14Montagut Chan, George1558SUI−3N+15B=4N=8B−11N−5B−13B2.022.524.55.751460-38.0
15Kakoyan, Narek1488SUI−9N−14N−12B−10N+16B+13N−8B2.018.519.54.001415-27.6
16Zhang, Zichen1443SUI=7B−13N=10B−6N−15N−12B−9B1.020.522.53.501276-48.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets
SJEM U10 Final (2026) — Zurich, Switzerland | Chess Tournament Results | ChessStats