CChessStats

Romania National Senior Chess Championship 2025 - Open 65

Open SwissStandard

27 players participated in this 7-round tournament, held from 10 Jun 2025 to 14 Jun 2025 in Geoagiu Bai, Romania. 3 titled players. Top 10 Elo average was 1953, and top seed was Horia Prundeanu (🇷🇴 ROU, 2118).

Dorin Lazar (🇷🇴 ROU, FM, 2083) won with 5.5/7, ahead of Aurel Stirb (5.5) and Ervin Mozes (5.5). Lazar shared the lead from round 6, winning on tie-break.

The biggest upset came in round 1: Gheorghe Ionita (1516) beat Cristinel Sorbun (1796), a +280-point gap.

Location
🇷🇴Geoagiu Bai, Romania
Dates
10 Jun 2025 → 14 Jun 2025
Time control
Standard: 40 Moves in 75 Min. Incr. 30 Sec. / in 15 Min. Incr. 30 Sec. /
System
Swiss · 7 rounds
Top seed
🇷🇴Horia Prundeanu2118
Avg top 10
1,953
Participants
27
Titled players · 3
IM×2
FM×1
Federations · 1 represented
🇷🇴Romania×27
Top 3

How it unfolded

Top 6 · 7 rounds

Tight race until R7; 3 players tied at 5.5/7, decided on Buchholz.

Co-leaders
12
5
1
1
1
2
3
23.55.57R1R2R3R4R5R6R7
Lazar5.5Stirb5.5Mozes5.5Farcas5Stancu5Jiros4.5
R7 · TIEBREAK CLUSTER

3 players finish on 5.5/7. Lazar takes the title on Buchholz Cut1 (29.0).

R2 · HEAD-TO-HEAD · WINNER VS 2ND

FM Dorin Lazar beat Aurel Stirb (Black).

WIN STREAKS · 2 top finishers

Aurel Stirb 4 wins (R3–R6)IM Ervin Mozes 3 wins (R1–R3)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1FMDorin Lazar*
1
½
½
2Aurel Stirb
0
*
1
½
3IMErvin Mozes
½
0
*—
4Doru-Marius Farcas
½
½
—*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7PtsBu C1BuSBPerfΔ
1Lazar, DorinFM2083ROU+16B+2N=4B=3N+7B+8B=5N5.529.032.024.252157+13.0
2Stirb, Aurel1922ROU+17N−1B+22N+9B+11N+3N=4B5.527.029.021.002068+30.2
3Mozes, ErvinIM2008ROU+21N+12B+9N=1B+6N−2B+7N5.527.029.020.752102+7.9
4Farcas, Doru-Marius1939ROU+25N+22B=1N=5B=8N+9B=2N5.026.028.018.002043+22.6
5Stancu, Ovidiu-Grigore1944ROU+18B−7N+25B=4N+15B+16N=1B5.023.525.516.251969+7.2
6Jiros, Doru1852ROU+23B=8N+15B=7N−3B+10N=19N4.523.525.514.501940+14.8
7Bujorean, Dorel1865ROU+24N+5B=8N=6B−1N+18B−3B4.027.529.514.251945+15.8
8Prundeanu, Horia2118ROU+13N=6B=7B+10N=4B−1N=11B4.027.030.516.251903-32.4
9Baluta, ConstantinIM1934ROU+10B+19N−3B−2N+18B−4N+16B4.026.029.013.001813-8.9
10Lazarean, Colea-Valentin1627ROU−9N+21B+12N−8B+13N−6B+17N4.022.524.512.001849+38.2
11Sorbun, Cristinel1796ROU−22N+17B=27N+14B−2B+15N=8N4.021.021.511.751797+2.0
12Radu, Eudochia1768ROU+27B−3N−10B+20N−16B+21N=13B3.521.021.57.251691-14.6
13Manate, Laurean1722ROU−8B+20N+19B−15N−10B+26N=12N3.520.521.58.751664-12.0
14Calugar, Mihail1865ROU=20B=15N=18B−11N+17N−19B+21N3.519.021.09.501736-18.2
15Cernea, Radu-Gheorghe1730ROU+26N=14B−6N+13B−5N−11B=18N3.023.524.57.751717-2.8
16Afloarei, Jenica1706ROU−1N=24B=21N+22B+12N−5B−9N3.022.024.07.501735+2.6
17Raditoiu, Laurentiu1594ROU−2B−11N+23B+26N−14B+20N−10B3.022.023.06.001638+5.4
18Ostafe, Viorel-Grigore1689ROU−5N+26B=14N+27B−9N−7N=15B3.020.521.04.751714+6.4
19Pascalau, Corneliu0ROUF−9B−13N=21B+27N+14N=6B3.018.018.07.2517620.0
20Murg, Gheorghe1575ROU=14N−13B=24N−12B+22N−17B+26B3.017.518.55.751598+2.4
21Cristescu, Eugeniu1690ROU−3B−10N=16B=19N+23N−12B−14B2.022.524.55.001560-42.0
22Ionita, Gheorghe1516ROU+11B−4N−2B−16N−20B−23N+27B2.022.523.04.501546+1.6
23Sandea, Dorin-Gheorghe1536ROU−6N−25B−17NF−21B+22B+24N2.015.515.54.001522-7.2
24Dicu, Nicolae1569ROU−7B=16N=20B−25N−26B+27N−23B2.015.015.53.501466-41.6
25Nastase, Stefan1671ROU−4B+23N−5N+24BFFF2.014.014.04.001747+6.8
26Topircean, Ioan1506ROU−15B−18NF−17B+24N−13B−20N1.017.517.52.001374-18.2
27Calota, Ion1509ROU−12NF=11B−18N−19B−24B−22N0.517.517.52.001299-40.4

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets