CChessStats

Lenzerheide Open 2025

Open SwissStandard

27 players participated in this 5-round tournament, held from 10 Oct 2025 to 12 Oct 2025 in Lenzerheide, Switzerland. 1 titled players from 4 federations. Top 10 Elo average was 1898, and top seed was Claudio Boschetti (🇨🇭 SUI, 2091).

Claudio Boschetti (🇨🇭 SUI, 2091) won with 4.5/5, ahead of Slobodan Adzic (4.0) and Andri Arquint (4.0). Boschetti won solo starting round 3.

The biggest upset came in round 3: Donauer Daniel (1795) beat Alexej Tchenash (2021), a +226-point gap.

Location
🇨🇭Lenzerheide, Switzerland
Dates
10 Oct 2025 → 12 Oct 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 5 rounds
Top seed
🇨🇭Claudio Boschetti2091
Avg top 10
1,898
Participants
27
Titled players · 1
FM×1
Federations · 4 represented
🇨🇭Switzerland×23
🇺🇦Ukraine×1
🇦🇹Austria×1
🇩🇪Germany×1
Top 3

How it unfolded

Top 6 · 5 rounds

Claudio Boschetti led from R3; +0.5-point edge over the runner-up.

Co-leaders
12
5
1
1
1
1.52.545R1R2R3R4R5
Boschetti4.5Arquint4Adzic4Aegerter3.5Daniel3.5Lanois3.5
R3–R5 · LEAD HELD

Claudio Boschetti held the sole lead from R3 through R5 without losing it.

R5 · HEAD-TO-HEAD · WINNER VS 2ND

Claudio Boschetti drew with Andri Arquint (Black).

R1–R4 · WIN STREAK

Claudio Boschetti won 4 in a row (R1–R4).

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Claudio Boschetti*
½
——
2Andri Arquint
½
*
½
—
3FMSlobodan Adzic—
½
*—
4Fabrice Aegerter———*

Grille américaine

#PlayerEloFedR1R2R3R4R5PtsBu C1BuSBPerfΔ
1Boschetti, Claudio2091SUI+22N+11B+5N+18B=3N4.512.013.011.002166+6.6
2Adzic, SlobodanFM2009SUI+10B=4N=3B+7N+8B4.013.516.012.252043+5.0
3Arquint, Andri1958SUI+19N+7B=2N+14B=1B4.013.515.511.252057+11.8
4Donauer Daniel1795SUI+9N=2B+15N=6B=5N3.514.016.010.501994+27.2
5Lanois, Herve1818SUI+21B+26N−1B+22N=4B3.510.510.54.251867+5.2
6Aegerter, Fabrice1915SUI+23B−18N+10B=4N+14N3.510.011.07.251832-8.4
7Seglias, Reto1736SUI+12B−3N+16B−2B+24N3.012.513.55.501686-8.4
8Klein, Frank1844SUI+17N−14B+23N+13B−2N3.010.511.55.501783-6.2
9Doerendahl, Ralf1474SUI−4B−10N+17N+26B+22B3.09.09.03.001668+40.4
10Schmidt, Timo1659SUI−2N+9B−6N+27B=13N2.513.013.04.251714+6.0
11Strupp, Christian1757SUI+16B−1N=12B−15N+25B2.511.011.53.751725-4.2
12Tanasic, Dragan0SUI−7N+17B=11N−20B+16B2.59.511.55.2516560.0
13Aragonda, Sahasra1693SUI+25N−15B+26B−8N=10B2.58.08.01.751568-27.6
14Bachmann, Nils1671SUI+24B+8NF−3N−6B2.011.511.54.001789+16.4
15Tchenash, Alexej2021UKRF+13N−4B+11BF2.010.510.55.001900-8.0
16Tuor, Elena1440SUI−11N+19B−7N+23B−12N2.010.011.03.001660+21.4
17Eichelberger, Matthias1551SUI−8B−12N−9B+21N+23B2.010.011.02.501603+7.6
18Maier, Gerald1736AUT+27N+6BF−1NF2.08.08.03.501936+15.6
19Wang, Muhe1564GER−3B−16N+25N−24B+27N2.07.57.50.501485-17.6
20Boettcher, Andreas G.1767SUIFF+21B+12NF2.07.07.04.002343+8.8
21Schwarz, Melanie1543SUI−5N=25B−20N−17B+26N1.58.08.00.25915-34.8
22Sasikaran, Sarwin1659SUI−1BF+24N−5B−9N1.013.014.01.00980-44.8
23Wolf, Harry1563SUI−6N+27B−8B−16N−17N1.010.510.50.001397-44.8
24Kassube, Kevin0SUI−14NF−22B+19N−7B1.08.08.02.0014640.0
25Hofer, Elias0SUI−13B=21N−19BF−11N0.58.58.50.7513380.0
26FIDE 5330589700—F−5B−13N−9N−21B0.010.510.50.008450.0
27Hoffman, Jeffrey1426SUI−18B−23NF−10N−19B0.07.57.50.00830-39.2

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets