Amateur Chess Open - 9th ed.

Open SwissStandard

91 players participated in this 6-round tournament, held from 31 Jan 2026 to 01 Feb 2026 in Bucuresti, Romania. 4 federations represented. Top 10 Elo average was 1770, and top seed was Serban-Catalin Mihai (🇷🇴 ROU, 1795).

Victor Butochnov (🇷🇴 ROU, 1766) won with 5.5/6, ahead of Matei Cioroianu (5.0) and Cristian-Leonte Gheorghe (5.0). Butochnov won solo starting round 5.

The biggest upset came in round 2: Daria Weis (1403) beat Ilie Nicolescu (1726), a +323-point gap.

Location

🇷🇴Bucuresti, Romania

Dates

31 Jan 2026 → 01 Feb 2026

Time control

Standard: 30 minutes for game with 30 seconds increment from move 1

System

Swiss · 6 rounds

Top seed

🇷🇴Serban-Catalin Mihai1795

Avg top 10

1,770

Participants

Federations · 4 represented

🇷🇴Romania×84

🇨🇦Canada×1

🇺🇦Ukraine×1

🇵🇹Portugal×1

Top 3

🥇
Victor Butochnov
🇷🇴ROU·1766
5.5pts·2035perf+51.2
🥈
Matei Cioroianu
🇷🇴ROU·1775
5.0pts·1964perf+52.8
🥉
Cristian-Leonte Gheorghe
🇷🇴ROU·1781
5.0pts·1923perf+36.4

How it unfolded

Top 6 · 6 rounds

Victor Butochnov led from R5; +0.5-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.

Co-leaders

Butochnov5.5Cioroianu5Gheorghe5Sementov5Robescu5Frent-Lung5

R5–R6 · LEAD HELD

Victor Butochnov held the sole lead from R5 through R6 without losing it.

R1–R5 · WIN STREAK

Victor Butochnov won 5 in a row (R1–R5).

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1Victor Butochnov	*	—	—	—
2Matei Cioroianu	—	*	—	½
3Cristian-Leonte Gheorghe	—	—	*	—
4Andrei Sementov	—	½	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	Pts	Bu C1	Bu	SB	Perf	Δ
1	Butochnov, Victor	1766	ROU	+69N	+15B	+35N	+26B	+13N	=9B	5.5	19.0	21.0	18.75	2035	+51.2
2	Cioroianu, Matei	1775	ROU	+63N	+14B	=11N	+10B	+18N	=5B	5.0	21.5	23.5	18.75	1964	+52.8
3	Gheorghe, Cristian-Leonte	1781	ROU	+32B	=52N	+4B	=7N	+22B	+15N	5.0	20.5	23.0	19.50	1923	+36.4
4	Robescu, Andrei-Georgian	1611	ROU	+76N	+25B	−3N	+28B	+35N	+14B	5.0	19.0	20.5	15.50	1970	+44.2
5	Sementov, Andrei	1773	ROU	+54N	=20B	+62N	+11B	+39N	=2N	5.0	18.5	20.5	16.25	1923	+20.4
6	Frent-Lung, Gheorghe	1744	ROU	+47N	−8B	+75N	+53B	+24N	+13B	5.0	17.5	19.0	14.50	1801	+6.6
7	Dobrovolska-Rakhnina, Bozhena	1753	UKR	+42N	+22B	=18N	=3B	+26N	=8B	4.5	20.0	23.0	16.50	1853	+30.0
8	Anghenie, Toma-Horia	1610	ROU	+81B	+6N	−36B	+57N	+21B	=7N	4.5	18.5	19.5	14.25	1889	+74.4
9	Mihai, Serban-Catalin	1795	ROU	F	+29N	+52B	+27B	+19N	=1N	4.5	18.5	18.5	15.75	2080	+24.4
10	Butochnov, Andriy	1722	ROU	+70B	=51N	+30B	−2N	+20B	+18N	4.5	18.0	20.0	13.75	1835	+34.0
11	Nastase, Stefan	1704	ROU	+66N	+80B	=2B	−5N	+51B	+40N	4.5	17.5	18.5	11.00	1808	+14.8
12	Enache, George-Alexandru	1685	ROU	+55N	−13B	=38N	+63B	+62N	+19B	4.5	15.0	17.0	11.50	1946	+26.2
13	Muscalu, George-Florin	0	ROU	+23B	+12N	+39B	+21N	−1B	−6N	4.0	22.0	25.0	14.50	1746	0.0
14	Ciordas, Andrei-Victor	1669	ROU	+37B	−2N	+64B	+44N	+41B	−4N	4.0	19.0	21.0	11.00	1716	+6.6
15	Voicu, Stefan	1633	ROU	+90B	−1N	+82B	+45N	+36B	−3B	4.0	17.5	17.5	7.00	1787	+41.2
16	Serbanoiu, Constantin	1706	ROU	=82B	=64N	+77B	−23N	+68B	+46N	4.0	12.0	13.0	8.00	1610	-11.0
17	Malureanu, Stefan	1581	ROU	+83B	−41N	−37B	+82N	+77B	+36N	4.0	11.5	12.5	6.50	1626	+6.8
18	David, Teodor-Spiridon	1684	ROU	+86B	+68N	=7B	+25N	−2B	−10B	3.5	19.5	20.5	8.75	1719	+8.4
19	Bobu, Stefan-Valentin	1771	ROU	+78B	=30N	+31B	+36N	−9B	−12N	3.5	19.0	20.5	9.75	1732	-5.6
20	Mihalea, Stefan	1652	ROU	+85B	=5N	−45B	+29N	−10N	+44B	3.5	19.0	20.0	10.00	1487	-11.2
21	Serban, Viorel	1726	ROU	+38N	+53B	+24N	−13B	−8N	=22B	3.5	18.5	21.0	10.75	1764	+5.2
22	Chelaru, Cristian	1617	ROU	+56B	−7N	+67B	+40B	−3N	=21N	3.5	18.5	20.5	9.25	1686	+18.0
23	Cocirta, Ciprian	1566	ROU	−13N	+66B	+59N	+16B	=27N	−33B	3.5	17.5	19.5	10.25	1757	+46.0
24	Porumb, Alecu	1676	ROU	+67B	+71N	−21B	+37N	−6B	=28B	3.5	17.0	19.0	8.75	1633	-4.8
25	Milea, Florian	1759	ROU	+46B	−4N	+43B	−18B	=75N	+51N	3.5	17.0	18.5	9.25	1630	-18.0
26	Constantin, Radu	1679	ROU	+88N	+73B	+41B	−1N	−7B	=57N	3.5	17.0	18.0	6.75	1692	+4.4
27	Dragusin, Calin-Ioan	1732	ROU	+58B	=31N	+51B	−9N	=23B	=52N	3.5	16.5	19.0	9.75	1679	-16.0
28	Dusa, Adrian	1740	ROU	−43B	+48N	+68B	−4N	+74B	=24N	3.5	16.5	18.0	8.25	1601	-19.6
29	Bubuila, Dan	0	ROU	+50N	−9B	=54N	−20B	+63N	+53B	3.5	16.0	18.0	8.75	1634	0.0
30	Moroianu, George	1664	ROU	+65N	=19B	−10N	−62B	+56B	+75N	3.5	14.5	16.0	7.75	1604	-8.4
31	Moroianu, Stefan	1590	ROU	+84N	=27B	−19N	+73B	−33N	+54B	3.5	14.5	15.5	6.75	1608	+0.8
32	Perisoara, Matei	1546	ROU	−3N	=88B	=73N	+66B	=55N	+62B	3.5	13.0	14.0	6.50	1596	+5.6
33	Oprea, Sorin-Andrei	1722	ROU	=64B	F	F	+79N	+31B	+23N	3.5	10.5	10.5	9.50	1899	+25.6
34	State, David-Cristian	1577	ROU	−80N	−74B	=65N	+76B	+73N	+55B	3.5	9.0	10.0	6.50	1462	-18.8
35	Barsmos, Shenouda Adel Abdelmasee	1697	ROU	+48B	+43N	−1B	+46N	−4B	F	3.0	19.5	22.5	9.00	1658	-8.8
36	Bratu, Ioan-Valentin	1722	ROU	+59N	+75B	+8N	−19B	−15N	−17B	3.0	18.5	20.0	8.50	1598	-20.2
37	Stefanescu, Andrada-Maria	0	ROU	−14N	+50B	+17N	−24B	=53N	=60B	3.0	17.0	19.5	9.50	1617	+24.0
38	Moraru, Stefan-Robert	1497	ROU	−21B	+60N	=12B	+49N	=52B	F	3.0	16.5	19.0	9.00	1730	+33.2
39	Vladescu, Ovidiu-Viorel	1709	ROU	+74N	+44B	−13N	F	−5B	+42B	3.0	16.5	17.5	7.50	1725	+1.4
40	Rautu, Andrei	1753	POR	−51B	+70N	+58B	−22N	+43B	−11B	3.0	16.0	18.0	7.50	1565	-57.6
41	Groapa, Aurelian	1728	ROU	+79N	+17B	−26N	+42B	−14N	F	3.0	16.0	16.0	8.50	1676	-6.4
42	Ratea, Otilia-Elena	1529	ROU	−7B	+81N	+71B	−41N	+45B	−39N	3.0	15.5	16.5	6.00	1549	-0.8
43	Voicu, Matei	1524	ROU	+28N	−35B	−25N	+67B	−40N	+65B	3.0	15.0	17.0	7.50	1640	+42.4
44	Dragusin, Mihai	0	ROU	+60B	−39N	+78B	−14B	+69N	−20N	3.0	15.0	16.5	6.00	1632	-9.2
45	Szatmary, Alex	1775	CAN	=61B	=82N	+20N	−15B	−42N	+74B	3.0	14.5	15.5	6.75	1557	-32.6
46	Purta, Grigore-Zaharia	1533	ROU	−25N	+76B	+80N	−35B	+71N	−16B	3.0	14.0	15.0	4.50	916	-32.0
47	Matala, Sophia-Lenina	1524	ROU	−6B	+83N	−57B	−77N	+85B	+67N	3.0	12.0	13.0	4.00	1510	+7.2
48	Tudorache, David-Andrei	1438	ROU	−35N	−28B	−84N	+83B	+72N	+69B	3.0	11.5	12.5	5.00	1676	+37.2
49	Shanahan, Brendan-Dan	1552	ROU	−73N	+55B	=74N	−38B	=65N	+66B	3.0	11.0	12.5	6.25	1559	+2.0
50	Hrehorciuc, Luca-Rafael	1577	ROU	−29B	−37N	−81B	+90N	+86B	+64N	3.0	10.5	10.5	3.00	1640	+10.8
51	Pana, Alexandru-Ioan	1528	ROU	+40N	=10B	−27N	+72B	−11N	−25B	2.5	19.0	21.0	7.25	1677	+37.2
52	Pintican, Alexandru-Andrei	1676	ROU	F	=3B	−9N	+54B	=38N	=27B	2.5	18.5	18.5	8.25	1694	+2.4
53	Robescu, Mihail	1553	ROU	+91B	−21N	+56B	−6N	=37B	−29N	2.5	17.5	17.5	4.00	1398	-10.6
54	Satmari, Radu-Valentin	1536	ROU	−5B	+90N	=29B	−52N	+70B	−31N	2.5	16.5	16.5	3.75	1447	-20.4
55	Tancu, Mihai-Robert	1437	ROU	−12B	−49N	+87B	+78N	=32B	−34N	2.5	16.0	17.0	4.25	1544	+31.6
56	Mitran, Radu-Mihai	0	ROU	−22N	+69B	−53N	+59B	−30N	=58B	2.5	14.5	16.5	5.75	1500	0.0
57	Ioan, Cezar-Octavian	1746	ROU	F	F	+47N	−8B	+58N	=26B	2.5	13.5	13.5	7.25	1657	-8.4
58	Bojica, Victor	1520	ROU	−27N	+84B	−40N	+80B	−57B	=56N	2.5	12.5	13.5	3.25	946	-25.2
59	Grigore, Miruna-Ioana	1472	ROU	−36B	+87N	−23B	−56N	+81B	=77N	2.5	11.5	12.5	2.75	1526	+11.2
60	Guriencu, Gabriel-Alexandru	1638	ROU	−44N	−38B	F	+81N	+79B	=37N	2.5	11.5	11.5	4.00	1559	-13.2
61	Musat, Mario-Cosmin	1537	ROU	=45N	−62B	−63N	−65B	+80N	+73B	2.5	10.5	11.5	4.00	1262	-50.0
62	Grigore, Melania-Cristina	1498	ROU	F	+61N	−5B	+30N	−12B	−32N	2.0	19.0	19.0	6.00	1576	+15.6
63	Matala, Anthony-Radu	1541	ROU	−2B	=85N	+61B	−12N	−29B	=70N	2.0	17.5	18.5	4.00	1537	-8.4
64	Buteica, Tudor-Stefan	1472	ROU	=33N	=16B	−14N	−71B	+91N	−50B	2.0	16.5	16.5	3.75	1473	-15.2
65	Valah, Stefania	0	ROU	−30B	−78N	=34B	+61N	=49B	−43N	2.0	15.5	17.0	5.75	1442	-12.4
66	Cristache, Natalia	1456	ROU	−11B	−23N	+91B	−32N	+84B	−49N	2.0	15.5	15.5	1.00	806	-46.0
67	Weis, Daria	1403	ROU	−24N	+72B	−22N	−43N	+78B	−47B	2.0	15.0	16.5	3.50	1464	+13.2
68	Cioraneanu, Cristian-Marian	1503	ROU	+72N	−18B	−28N	+84B	−16N	−71B	2.0	15.0	16.0	3.00	1523	+2.4
69	Vrabie, Iona-Mihail	1533	ROU	−1B	−56N	+83B	+86N	−44B	−48N	2.0	15.0	16.0	2.00	1450	-15.6
70	Stroe, Vladimir-Octavian	1495	ROU	−10N	−40B	=76N	+87B	−54N	=63B	2.0	13.5	14.5	2.75	1496	-3.2
71	Urse, Mugur-Gabriel	0	ROU	F	−24B	−42N	+64N	−46B	+68N	2.0	13.5	13.5	4.00	1493	0.0
72	Nicolescu, Ilie	1726	ROU	−68B	−67N	+90B	−51N	−48B	+84N	2.0	10.5	10.5	1.00	691	-63.2
73	Sfetcu, Nicolae	0	ROU	+49B	−26N	=32B	−31N	−34B	−61N	1.5	17.0	19.5	4.75	1392	0.0
74	Zamfirescu, Vlad-Constantin	1471	ROU	−39B	+34N	=49B	F	−28N	−45N	1.5	16.0	16.0	5.00	1522	+10.8
75	Tudor, Remus-Ion	1522	ROU	F	−36N	−6B	+85N	=25B	−30B	1.5	16.0	16.0	2.75	1403	-19.2
76	FIDE 42223032	0	—	−4B	−46N	=70B	−34N	−83N	+85B	1.5	14.5	15.5	2.00	1239	0.0
77	Ioan, Nicolae	1415	ROU	F	F	−16N	+47B	−17N	=59B	1.5	13.5	13.5	4.25	1455	0.0
78	Pestroiu-Braun, Karina	1533	ROU	−19N	+65B	−44N	−55B	−67N	=79B	1.5	13.0	14.5	2.75	1376	-54.8
79	Petroff, Mihai-Marcilian	1520	ROU	−41B	+91N	F	−33B	−60N	=78N	1.5	10.5	10.5	0.75	1346	-29.6
80	Tigaeru, Vladimir	0	ROU	+34B	−11N	−46B	−58N	−61B	−86N	1.0	16.0	17.0	3.50	1280	0.0
81	Dragomir, Andrei D.	0	ROU	−8N	−42B	+50N	−60B	−59N	F	1.0	15.5	15.5	3.00	1325	0.0
82	Matei, Octavian-Stefan	1456	ROU	=16N	=45B	−15N	−17B	F	F	1.0	15.0	15.0	3.50	1481	-4.8
83	Enuca, Radu-Liviu	0	ROU	−17N	−47B	−69N	−48N	+76B	−87N	1.0	13.5	14.5	1.50	739	-64.4
84	FIDE 42252571	0	—	−31B	−58N	+48B	−68N	−66N	−72B	1.0	13.0	15.0	3.00	1273	0.0
85	Dodi, Eduard-Mihai	0	ROU	−20N	=63B	=88N	−75B	−47N	−76N	1.0	11.5	12.5	1.50	1287	0.0
86	Oprea, Luca-Stefan	1416	ROU	−18N	F	F	−69B	−50N	+80B	1.0	9.5	9.5	1.00	804	-36.4
87	Frunza, Adrian	1628	ROU	−89N	−59B	−55N	−70N	F	+83B	1.0	9.0	9.0	1.00	661	-87.2
88	Rusu, Anastasia-Sofia	1415	ROU	−26B	=32N	=85B	F	F	F	1.0	8.0	8.0	2.25	1436	-1.6
89	FIDE 42262240	0	—	+87B	F	F	F	F	F	1.0	4.0	4.0	1.00	1654	0.0
90	FIDE 1283049	0	—	−15N	−54B	−72N	−50B	F	F	0.0	11.5	11.5	0.00	819	0.0
91	Ousta-Yaakov, Omer	0	ROU	−53N	−79B	−66N	F	−64B	F	0.0	9.0	9.0	0.00	716	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Anghenie, Toma-HoriaROU
+74.4
4.5 pts · #15
2Cioroianu, MateiROU
+52.8
5.0 pts · #1
3Butochnov, VictorROU
+51.2
5.5 pts · #6

Top rating losers

1Frunza, AdrianROU
-87.2
1.0 pts · #86
2Enuca, Radu-LiviuROU
-64.4
1.0 pts · #87
3Nicolescu, IlieROU
-63.2
2.0 pts · #89

Biggest upsets

R2+323 Elo gap
Weis, Daria1403 beat Nicolescu, Ilie1726
R5+288 Elo gap
Tudorache, David-Andrei1438 beat Nicolescu, Ilie1726
R5+246 Elo gap
Ratea, Otilia-Elena1529 beat Szatmary, Alex1775