CChessStats

Cluj Chess Marathon 10th ed. - Open

Open SwissStandard

20 players participated in this 7-round tournament, held from 12 Dec 2025 to 14 Dec 2025 in Cluj-Napoca, Romania. 1 titled players. Top 10 Elo average was 2012, and top seed was Cristi-Iulian Coca (🇷🇴 ROU, FM, 2218).

Cristi-Iulian Coca (🇷🇴 ROU, FM, 2218) won with 5.5/7, ahead of Levente-David Ilonczai (5.0) and Radu Tampea (5.0). Coca won solo starting round 6.

The biggest upset came in round 2: Sorin-Mihai Samu (1984) beat Radu Tampea (2166), a +182-point gap.

Location
🇷🇴Cluj-Napoca, Romania
Dates
12 Dec 2025 → 14 Dec 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 7 rounds
Top seed
🇷🇴FMCristi-Iulian Coca2218
Avg top 10
2,012
Participants
20
Titled players · 1
FM×1
Federations · 1 represented
🇷🇴Romania×19
Top 3

How it unfolded

Top 6 · 7 rounds

FM Cristi-Iulian Coca led from R3; +0.5-point edge over the runner-up.

Co-leaders
8
4
1
4
2
1
1
23.55.57R1R2R3R4R5R6R7
Coca5.5Ilonczai5Tampea5Veneteanu5Samu4.5Helmer4.5
R3–R7 · LEAD HELD

FM Cristi-Iulian Coca held the sole lead from R3 through R7 without losing it.

R4 · HEAD-TO-HEAD · WINNER VS 2ND

FM Cristi-Iulian Coca lost to Levente-David Ilonczai (White).

WIN STREAKS · 2 top finishers

FM Cristi-Iulian Coca 3 wins (R1–R3)Levente-David Ilonczai 3 wins (R1–R4)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1FMCristi-Iulian Coca*
0
½
1
2Levente-David Ilonczai
1
*
½
1
3Radu Tampea
½
½
*—
4Mihai Veneteanu
0
0
—*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7PtsBu C1BuSBPerfΔ
1Coca, Cristi-IulianFM2218ROU+9N+6B+4N−2B+11N+5B=3N5.527.030.022.502257+8.0
2Ilonczai, Levente-David2157ROU+16N+8BF+1N=3B+4B=6N5.025.025.020.252285+20.4
3Tampea, Radu2166ROU+17B−5N+10B+7N=2N+11B=1B5.024.026.016.252134-0.4
4Veneteanu, Mihai2111ROU+10B+12N−1B+5N+8B−2N+15B5.024.026.015.502057-1.4
5Samu, Sorin-Mihai1984ROU+14N+3B=7N−4B+9N−1N+8B4.524.527.015.002040+14.4
6Helmer, Janos2018ROU+13N−1N+17B−11B+15N+7B=2B4.521.523.512.501998+2.4
7Arion, Ilie2005ROU=15B+19N=5B−3B+10N−6NF3.022.022.06.251845-20.0
8Vitan, Daniel-Attila1813ROU+18B−2NF+16B−4N+17B−5N3.020.520.56.001855+11.2
9Tat, Alin-Sebastian1675ROU−1B=15N+19B+12N−5B=14NF3.020.520.55.251760+10.6
10Guo, Aris-Dian1665ROU−4N+14B−3N+19B−7B=12N=16B3.020.520.55.001760+22.4
11Pozna Tokos, Bence1941ROUFF+15B+6N−1B−3N+14B3.019.519.59.001997+19.2
12Macioca, Laurentiu-Daniel1710ROU+20N−4B=16N−9B−14N=10B+17N3.017.517.54.501603-19.4
13Fantana, Daniel-Vasile1652ROU−6B−17N+18B−15N+16NF+19B3.012.512.54.001684+3.0
14Krajla, Ciprian-Zoltan1595ROU−5B−10NF+18N+12B=9B−11N2.518.518.56.501695+12.4
15Hale, Eduard1635ROU=7N=9B−11N+13B−6BF−4N2.021.523.56.001762+26.8
16Salagean, Viorel1671ROU−2B+18N=12B−8N−13BF=10N2.019.019.05.001616-10.6
17Bran, Horatiu1671ROU−3N+13B−6N+20BF−8N−12B2.018.518.53.001611-9.2
18Tamas, Alexandru-Marius1559ROU−8N−16B−13N−14B+19NF+20B2.012.512.50.001417-15.2
19Niculas, Tudor1558ROUF−7B−9N−10N−18BF−13N0.016.016.00.00901-69.6
20FIDE 42247969701—−12BFF−17NFF−18N0.07.07.00.008410.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets