CChessStats

OBRO Sommerskak 2025 - 1

Open SwissStandard

24 players participated in this 7-round tournament, held from 10 Jul 2025 to 13 Jul 2025 in Copenhagen, Denmark. 2 titled players from 4 federations. Top 10 Elo average was 2133, and top seed was Kristen Schmidt (🇩🇰 DEN, 2187).

Lukas Iskos (🇩🇰 DEN, 2039) won with 5.5/7, ahead of Lars Rene Andersen (5.0) and Oscar Koch-Muller (5.0). Iskos won solo starting round 4.

The biggest upset came in round 2: Denys Kushyk (1953) beat Carlos Tornberg (2164), a +211-point gap.

Location
🇩🇰Copenhagen, Denmark
Dates
10 Jul 2025 → 13 Jul 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 7 rounds
Top seed
🇩🇰Kristen Schmidt2187
Avg top 10
2,133
Participants
24
Titled players · 2
CM×2
Federations · 4 represented
🇩🇰Denmark×21
🇸🇪Sweden×1
🇮🇳India×1
🇺🇦Ukraine×1
Top 3

How it unfolded

Top 6 · 7 rounds

Lukas Iskos led from R4; +0.5-point edge over the runner-up.

Co-leaders
10
5
2
1
1
1
1
23.55.57R1R2R3R4R5R6R7
Iskos5.5Andersen5Koch-Muller5Schmidt4.5Petersen4.5Balton4
R4–R7 · LEAD HELD

Lukas Iskos held the sole lead from R4 through R7 without losing it.

R4 · HEAD-TO-HEAD · WINNER VS 2ND

Lukas Iskos beat Lars Rene Andersen (White).

WIN STREAKS · 3 top finishers

Lukas Iskos 4 wins (R1–R4)Lars Rene Andersen 3 wins (R1–R3)Oscar Koch-Muller 3 wins (R4–R6)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Lukas Iskos*
1
1
0
2Lars Rene Andersen
0
*
0
1
3Oscar Koch-Muller
0
1
*—
4Kristen Schmidt
1
0
—*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7PtsBu C1BuSBPerfΔ
1Iskos, Lukas2039DEN+18B+15N+3B+2B=5N+6N−4B5.526.029.022.252339+53.6
2Andersen, Lars Rene2052DEN+23B+6N+4B−1N+8B−3N+12B5.026.527.517.002217+31.4
3Koch-Muller, Oscar2043DEN=7N+24B−1N+9B+14N+2B=5N5.026.027.017.252221+33.8
4Schmidt, Kristen2187DEN+10N+14B−2N=5B=7N=8B+1N4.527.030.018.752180-0.6
5Petersen, Peter Birk2104DEN+21B+12N=8B=4N=1B=7N=3B4.526.529.017.502173+13.8
6Skonnord, UnoCM2113DEN+9N−2B=7N+13B+11N−1B=8N4.026.530.015.502108-0.2
7Veiergang, Oscar2166DEN=3B+17N=6B=8N=4B=5B=9N4.026.029.016.002137-5.2
8Saugmann, Frederik Chabert2057DEN+22N+16B=5N=7B−2N=4N=6B4.025.026.012.502148+36.0
9Balton, Tim1978DEN−6B+23N=15B−3N+18B+19N=7B4.021.522.510.002119+26.8
10De Blecourt, SandraCM2044DEN−4B−19N+23B+20N=12B=14N+17B4.019.020.09.752096+10.4
11Gjesme, Marius Enevold2158DEN−12B+21N=20B+19N−6B=15N+16B4.018.521.010.752090-11.8
12Ahl, Eskil Rosenlund2036DEN+11N−5B=14N=16B=10N+13B−2N3.524.027.012.502073+14.4
13Kushyk, Denys1953UKR−15B+18N=17B−6N+20B−12N+19B3.519.021.59.502070+43.2
14Nicolaisen, Jeppe2086DEN+19B−4N=12B=15N−3B=10B=21N3.022.525.09.001998-17.4
15Eriksson, Christian Altenburg2102DEN+13N−1B=9N=14B=16N=11B—3.020.023.010.502055-7.6
16Rosenlund, Thorbjorn2116DEN+20B−8N=19B=12N=15B=17N−11N3.020.022.58.502011-20.4
17Vedant Kumar Saravana2130IND=24N−7B=13N=18N+21B=16B−10N3.020.021.07.752012-45.2
18Tornberg, Carlos2164SWE−1N−13B+24N=17B−9N+22B=20N3.019.520.54.751958-38.8
19Hansen, John Laurids1952DEN−14N+10B=16N−11B+22N−9B−13N2.521.522.56.501938-3.6
20Rasmussen, Christian Ejner1993DEN−16N+22B=11N−10B−13N=21B=18B2.520.021.05.751948-9.4
21Cordes, Steffen1970DEN−5N−11B=22N+24B−17N=20N=14B2.518.019.04.251960-2.8
22Orio, Lars1946DEN−8B−20N=21B=23N−19B−18N—1.014.515.51.751740-29.4
23Mihaila, Radu Stefan1940DEN−2N−9B−10N=22B=24N——1.014.015.01.001768-41.6
24Topholm, Morten2018DEN=17B−3N−18B−21N=23B——1.013.514.52.001810-26.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets