CChessStats

Hayri Ozbilen 11th Memorial Chess Tournament

Open SwissStandard

29 players participated in this 6-round tournament, held from 25 Oct 2025 to 28 Oct 2025 in Istanbul, Turkey. 1 titled players. Top 10 Elo average was 1952, and top seed was Enes Yusuf Maruflu (🇹🇷 TUR, 2161).

Enes Yusuf Maruflu (🇹🇷 TUR, 2161) won with 4.5/6, ahead of Yigit Efe (4.5) and Omer Akkara (4.5). Maruflu shared the lead from round 1, winning on tie-break.

The biggest upset came in round 4: Ibrahim Enes Isikyildiz (1878) beat Kaan Akbas (2154), a +276-point gap.

Location
🇹🇷Istanbul, Turkey
Dates
25 Oct 2025 → 28 Oct 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 6 rounds
Top seed
🇹🇷Enes Yusuf Maruflu2161
Avg top 10
1,952
Participants
29
Titled players · 1
CM×1
Federations · 1 represented
🇹🇷Turkiye×29
Top 3

How it unfolded

Top 6 · 6 rounds

Tight race until R6; 3 players tied at 4.5/6, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 3 at the finish.

Co-leaders
11
4
6
2
2
3
1.534.56R1R2R3R4R5R6
R6 · TIEBREAK CLUSTER

3 players finish on 4.5/6. Maruflu takes the title on Buchholz Cut1 (19.5).

R1–R6 · UNBEATEN

Yigit Efe went unbeaten across 6 games (R1–R6).

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Yigit Efe*
½
2Enes Yusuf Maruflu*
1
½
3CMOmer Akkara
0
*
4Enver Konyar
½
½
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6PtsBu C1BuSBPerfΔ
1Maruflu, Enes Yusuf2161TUR+21N+13B=5N+3B=4B=6N4.519.521.515.502109-3.8
2Efe, Yigit1644TUR=7N=21B+23N+17B=5N+4B4.516.518.513.501969+99.6
3Akkara, OmerCM2014TUR=16B+22N+18B1N+14B+10N4.516.018.012.252019+10.0
4Isikyildiz, Ibrahim Enes1878TUR+19B+9N=10B+6B=1N2N4.020.523.014.502018+44.0
5Konyar, Enver1883TUR+15N+26B=1B=10N=2B=12N4.019.020.512.501936+18.4
6Akbas, Kaan2154TUR=22B+14N+8B4N+16B=1B4.018.020.012.751993-17.8
7Harman, Ongun1891TUR=2B=16N+29B+12N=10B=8N4.018.018.010.751886+3.2
8Sadik, Muhammed Selim1908TUR+11N=18B6N+21B+13N=7B4.017.019.011.751947+13.2
9Akyuz, Pars1760TUR+17N4B+11N13B+18N+24B4.015.517.510.501813+18.0
10Ozcan, Alp Orcun2026TUR+20N+23B=4N=5B=7N3B3.519.021.010.501899-16.8
11Bagci, Hikmet1658TUR8B+24N9B=25N+22B+16N3.514.516.07.251746+14.4
12Oguz, Emek Ege1805TUR26N+28B+20N7B+21N=5B3.514.014.06.501778-6.0
13Yorkan, Ahmet Selim1804TUR+25B1N=16B+9N8B=14N3.018.019.58.251802-4.0
14Barutcu, Bahadir1719TUR+29N6B=26N+15B3N=13B3.016.016.05.251782+7.0
15Ozdemir, Emrehan1620TUR5B=27N+19B14N+25B=17N3.013.514.05.501641+2.6
16Sezer, Toprak1658TUR=3N=7B=13N+23B6N11B2.519.021.07.751808+36.8
17Ozdemir, Erden1538TUR9B+19N+22B2N24B=15B2.516.018.06.001583+6.4
18Mercan, Mehmet Fatih1717TUR+27B=8N3N+26B9BF2.514.514.54.001756+8.8
19Sahin, Kerem1613TUR4N17B15N+28B+23N=20N2.514.014.03.251614-3.2
20Hersek, Dogu Seyran1624TUR10B+25N12B24N+27N=19B2.513.013.53.251620-7.6
21Fidan, Naz Mercan1709TUR1B=2N+27B8N12B=22N2.018.519.03.751646-24.0
22Araz, Mustafa Zeynullah1672TUR=6N3B17N+27B11N=21B2.016.517.03.501621-23.6
23Kaban, Mahmut1757TUR+24B10N2B16N19B+25N2.015.016.53.501554-32.8
24Selman, Murat1530TUR23N11BF+20B+17N9N2.014.514.55.001595+7.8
25Sezgin, Hakan Ertug1601TUR13N20B+28N=11B15N23B1.514.014.01.751486-17.6
26Hazer, Eren1609TUR+12B5N=14B18NFF1.513.013.05.001694+15.2
27Simsek, Deniz1490TUR18N=15B21N22N20BF0.512.012.01.501302-16.6
28Dal, Cagan Serkan1611TURF12N25B19NFF0.07.57.50.00873-50.4
29Koken, Muhittin1524TUR14BF7NFFF0.07.07.00.001006-7.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets