Amateur Chess Open - 7th ed.

Open SwissStandard

86 players participated in this 6-round tournament, held from 04 Oct 2025 to 05 Oct 2025 in Bucuresti, Romania. 2 federations represented. Top 10 Elo average was 1773, and top seed was Ioan-Valentin Bratu (🇷🇴 ROU, 1791).

Sorin-Andrei Oprea (🇷🇴 ROU, 1650) won with 5.5/6, ahead of Tudor-Alexandru Butochnov (5.0) and Yanis-Andrei Tarabic (5.0). Oprea won solo starting round 5.

The biggest upset came in round 1: George-Sorin Ivascu (1450) beat Ovidiu-Viorel Vladescu (1751), a +301-point gap.

Location

🇷🇴Bucuresti, Romania

Dates

04 Oct 2025 → 05 Oct 2025

Time control

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

System

Swiss · 6 rounds

Top seed

🇷🇴Ioan-Valentin Bratu1791

Avg top 10

1,773

Participants

Federations · 2 represented

🇷🇴Romania×81

🇺🇦Ukraine×2

Top 3

🥇
Sorin-Andrei Oprea
🇷🇴ROU·1650
5.5pts·1993perf+62.0
🥈
Tudor-Alexandru Butochnov
🇷🇴ROU·1710
5.0pts·1926perf+63.2
🥉
Yanis-Andrei Tarabic
🇷🇴ROU·1779
5.0pts·1883perf+28.0

How it unfolded

Top 6 · 6 rounds

Sorin-Andrei Oprea 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

Oprea5.5Butochnov5Constantin5Tarabic5Pantazi4.5Sementov4.5— ex-leaders:Oprealed R5–R6, #12

R5–R6 · LEAD HELD

Sorin-Andrei Oprea held the sole lead from R5 through R6 without losing it.

WIN STREAKS · 2 top finishers

Sorin-Andrei Oprea 5 wins (R1–R5)Eduard-Andrei Constantin 4 wins (R1–R4)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1Sorin-Andrei Oprea	*	—	—	—
2Tudor-Alexandru Butochnov	—	*	1	½
3Eduard-Andrei Constantin	—	0	*	—
4Yanis-Andrei Tarabic	—	½	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	Pts	Bu C1	Bu	SB	Perf	Δ
1	Oprea, Sorin-Andrei	1650	ROU	+62B	+50N	+16B	+12B	+13N	=9N	5.5	19.0	21.0	18.75	1993	+62.0
2	Butochnov, Tudor-Alexandru	1710	ROU	+65B	+53N	=3B	+21N	+4B	=7N	5.0	20.5	22.5	17.75	1926	+63.2
3	Tarabic, Yanis-Andrei	1779	ROU	+39N	+32B	=2N	=5B	+26N	+14B	5.0	20.0	23.0	18.25	1883	+28.0
4	Constantin, Eduard-Andrei	1777	ROU	+83B	+74N	+22B	+14B	−2N	+15N	5.0	17.5	18.0	13.00	1893	+32.0
5	David, Teodor-Spiridon	1524	ROU	+60B	+54N	+17B	=3N	−9B	+22N	4.5	19.5	22.0	15.00	1875	+86.4
6	Pantazi, Stefan-Daniel	0	ROU	+15B	=13N	=59B	+34N	+23B	=10B	4.5	19.0	21.5	16.00	1717	0.0
7	Sementov, Andrei	1772	ROU	+46N	=8B	+49N	=26B	+32N	=2B	4.5	19.0	21.5	15.00	1781	+2.4
8	Voicu, Stefan	1597	ROU	+77B	=7N	+40B	−9N	+24N	+25B	4.5	19.0	20.0	13.25	1813	+45.6
9	Moroianu, George	1672	ROU	+86B	+33N	F	+8B	+5N	=1B	4.5	17.5	17.5	14.75	1898	+18.6
10	Soltuz-Grosu, Roland-Vladimir	1764	ROU	+56B	−12N	+52B	+66N	+35B	=6N	4.5	16.5	18.5	12.25	1783	+2.6
11	Milea, Florian	1731	ROU	=49B	−31N	+82B	+43N	+21B	+12B	4.5	16.0	16.5	12.25	1871	+10.0
12	Rizea, Laurentiu-Mihai	1525	ROU	+41N	+10B	+51B	−1N	+16B	−11N	4.0	21.5	24.0	14.00	1802	+70.8
13	Butochnov, Victor	1646	ROU	+79N	=6B	+31N	+24B	−1B	=18N	4.0	20.5	21.5	11.75	1698	+4.8
14	Gheorghita, Stefan	1630	ROU	+55N	+28B	+23B	−4N	+45B	−3N	4.0	20.0	22.5	12.50	1848	+56.8
15	Perisoara, Matei	1551	ROU	−6N	+55B	+61N	+19B	+27N	−4B	4.0	19.5	21.5	12.00	1890	+52.8
16	Mitu, Dorin	1771	ROU	+58N	+42B	−1N	+29B	−12N	+32B	4.0	19.0	21.5	12.00	1688	-22.8
17	Popescu, Rares-Stefan	1723	ROU	+82N	+18B	−5N	=25B	=31N	+36B	4.0	18.0	18.5	10.75	1523	-21.2
18	Dragusin, Calin-Ioan	0	ROU	+35B	−17N	+74B	=51N	+40B	=13B	4.0	16.5	17.5	10.25	1718	0.0
19	Marinache, Luca-Marian	1771	ROU	+52B	−21N	+58B	−15N	+56B	+34N	4.0	15.5	18.0	10.50	1671	-27.2
20	Serbanoiu, Constantin	1695	ROU	=31B	−49N	+70B	=47N	+52B	+38N	4.0	14.0	15.5	10.00	1571	-12.0
21	Marinescu, Andrei	1591	ROU	+30N	+19B	=24N	−2B	−11N	+57B	3.5	20.5	23.0	11.75	1654	+11.6
22	Moldovanu, Raluca	1703	ROU	+80N	+57B	−4N	+30B	=28N	−5B	3.5	19.0	20.0	8.75	1545	-16.8
23	Lungu, Tiberiu-Cosmin	1762	ROU	+36N	+63B	−14N	+44B	−6N	=29B	3.5	18.0	20.0	9.75	1675	-13.2
24	Enache, George-Alexandru	1748	ROU	+38B	+81N	=21B	−13N	−8B	+53N	3.5	17.5	18.5	8.25	1614	-38.8
25	Butochnov, Andriy	0	ROU	=34B	=37N	+?B	=17N	+51B	−8N	3.5	17.0	17.0	7.50	1677	0.0
26	Vintila, Ionut-Vicentiu	1640	ROU	+76B	+45N	F	=7N	−3B	+41B	3.5	16.5	16.5	9.25	1782	+11.6
27	Vladescu, Ovidiu-Viorel	1751	ROU	−33B	+70N	+56B	+36N	−15B	=47N	3.5	15.5	17.0	8.50	1515	-29.2
28	Prignea, David-Cristian	1790	ROU	+66B	−14N	+46B	+59N	=22B	F	3.5	15.0	15.0	9.25	1741	-9.6
29	Voicu, Matei	1513	ROU	+75B	−51N	+50B	−16N	+61B	=23N	3.5	14.5	15.5	7.25	1475	+0.4
30	Komarov, Mykyta	0	UKR	−21B	+83N	+81B	−22N	=53B	+?N	3.5	11.0	11.0	2.75	1592	0.0
31	Capatina, Vladimir	0	ROU	=20N	+11B	−13B	+67N	=17B	F	3.0	19.5	21.5	10.50	1702	0.0
32	Cirnu, Robert-Daniel	1630	ROU	+69B	−3N	+33B	+38N	−7B	−16N	3.0	19.5	21.0	7.50	1572	-21.6
33	Ivascu, George-Sorin	1450	ROU	+27N	−9B	−32N	+54N	=37B	=43B	3.0	17.0	19.5	9.00	1684	+34.6
34	Cojanu, Ion	1617	ROU	=25N	=61B	+64N	−6B	+44N	−19B	3.0	17.0	19.0	7.75	1609	-0.4
35	Constantin, Tudor	1658	ROU	−18N	+80B	+48N	+57B	−10N	F	3.0	17.0	18.0	6.50	1651	+0.4
36	Ratea, Otilia-Elena	1474	ROU	−23B	+77N	+54B	−27B	+42N	−17N	3.0	16.5	17.5	6.50	1639	+33.2
37	Szemeredi, Cristian	1680	ROU	=64N	=25B	−44N	+48B	=33N	=39B	3.0	15.5	17.5	8.75	1442	-23.8
38	Weis, Daria	1434	ROU	−24N	+68B	+42N	−32B	+63N	−20B	3.0	15.5	17.5	7.00	1581	+32.8
39	Ivascu, Petru	1499	ROU	−3B	+76N	−45B	=50N	+67B	=37N	3.0	15.5	16.5	5.75	1625	+26.8
40	Barsmos, Shenouda Adel Abdelmasee	1692	ROU	F	+43B	−8N	+49B	−18N	+71B	3.0	15.5	15.5	7.00	1720	+8.4
41	Peter, Patrick-Daniel	0	ROU	−12B	−52N	+65B	+58N	+66B	−26N	3.0	14.5	16.5	6.50	1520	0.0
42	Bojica, Victor	1583	ROU	+72B	−16N	−38B	+62N	−36B	+50N	3.0	14.5	16.0	6.00	770	-62.8
43	Anghenie, Toma-Horia	1592	ROU	=70B	−40N	+60B	−11B	+76N	=33N	3.0	14.5	15.5	5.75	1350	-36.4
44	Pavel, Mihai-Razvan	1439	ROU	−54B	+72N	+37B	−23N	−34B	+62N	3.0	14.0	15.5	6.50	1503	+8.4
45	Bratu, Ioan-Valentin	1791	ROU	+71N	−26B	+39N	+63B	−14N	F	3.0	14.0	14.0	6.50	1636	-18.4
46	Oprea, Luca-Stefan	1498	ROU	−7B	+69N	−28N	−61B	+78N	+64B	3.0	13.5	14.5	4.50	983	-13.2
47	Dascalu, Christian Nicolae	1550	ROU	−50B	+65N	F	=20B	+69N	=27B	3.0	13.5	13.5	7.25	1761	+34.0
48	Ioan, Nicolae	1434	ROU	−51B	+84N	−35B	−37N	+75N	+63B	3.0	11.5	11.5	3.00	1471	+11.2
49	Rinescu, Maria	1414	ROU	=11N	+20B	−7B	−40N	−50B	+61N	2.5	18.5	20.5	8.25	1634	+36.4
50	Pavel, Mihai-Cristian	0	ROU	+47N	−1B	−29N	=39B	+49N	−42B	2.5	18.0	20.5	7.00	1464	0.0
51	Serban, Viorel	1734	ROU	+48N	+29B	−12N	=18B	−25N	F	2.5	18.0	18.0	8.50	1591	-9.2
52	Malaieru, Alexandra-Gabriela	1495	ROU	−19N	+41B	−10N	+84B	−20N	=55B	2.5	18.0	18.0	4.25	943	-23.2
53	Grigore, Melania-Cristina	1506	ROU	+68N	−2B	−57N	+78B	=30N	−24B	2.5	16.5	17.5	4.75	929	-19.6
54	Chelaru, Cristian	1751	ROU	+44N	−5B	−36N	−33B	=55N	+73B	2.5	16.0	17.5	5.75	1294	-90.8
55	Stroe, Vladimir-Octavian	0	ROU	−14B	−15N	+72B	=?N	=54B	=52N	2.5	14.5	14.5	4.00	1453	0.0
56	Matei, Octavian-Stefan	1474	ROU	−10N	+85B	−27N	+75B	−19N	=72B	2.5	14.5	14.5	1.75	962	-25.2
57	Matei, Gabriel-Sorin	0	ROU	+?B	−22N	+53B	−35N	=71B	−21N	2.5	14.0	14.0	3.25	1536	0.0
58	Grigore, Stefan-Petru	1491	ROU	−16B	+73N	−19N	−41B	+84N	=69B	2.5	14.0	14.0	2.25	971	-12.8
59	Cirica, Eric-Cristian	1616	ROU	+73B	F	=6N	−28B	+64N	F	2.5	11.5	11.5	5.75	991	-10.8
60	FIDE 42257751	0	—	−5N	=82B	−43N	−80B	+79N	+76B	2.5	10.5	11.0	2.25	720	0.0
61	Hamdan, Mustafa	0	ROU	=67B	=34N	−15B	+46N	−29N	−49B	2.0	16.0	18.0	5.50	1400	0.0
62	Popescu, Luca-Alexandru	0	ROU	−1N	+71B	−63N	−42B	+68N	−44B	2.0	15.5	17.0	3.50	1311	0.0
63	Rusu, Anastasia-Sofia	1566	ROU	+84B	−23N	+62B	−45N	−38B	−48N	2.0	14.5	14.5	2.00	795	-78.0
64	Predescu, Ioan-Tudor	0	ROU	=37B	=67N	−34B	+74N	−59B	−46N	2.0	13.5	14.5	3.50	1479	0.0
65	Cristache, Natalia	0	ROU	−2N	−47B	−41N	−68B	+82N	+84B	2.0	13.5	13.5	0.50	828	-23.2
66	Petroff, Mihai-Marcilian	1500	ROU	−28N	+78B	+75N	−10B	−41N	F	2.0	13.0	13.0	2.00	978	-13.2
67	Moroianu, Stefan	1594	ROU	=61N	=64B	F	−31B	−39N	+70N	2.0	11.5	11.5	3.50	668	-13.4
68	Tuduruta, Ovidiu	0	ROU	−53B	−38N	−69B	+65N	−62B	+74N	2.0	11.0	12.0	3.00	1513	0.0
69	Ion, Maria-Ines	0	ROU	−32N	−46B	+68N	F	−47B	=58N	1.5	13.5	14.5	3.25	1227	0.0
70	Hanna, Abanoub Ibrahim Nagy	0	ROU	=43N	−27B	−20N	+82N	−?B	−67B	1.5	13.0	13.0	2.00	1278	0.0
71	Balan, Viorel Andrei	1501	ROU	−45B	−62N	+73B	F	=57N	−40N	1.5	12.0	13.0	2.75	937	-15.6
72	Malureanu, Stefan	0	ROU	−42N	−44B	−55N	F	+74B	=56N	1.5	12.0	12.0	2.25	1456	0.0
73	Caramet, Cristian-Valentin	0	ROU	−59N	−58B	−71N	+79B	=83N	−54N	1.5	10.0	10.5	1.25	1203	0.0
74	Tudor, Filip	1613	ROU	+78N	−4B	−18N	−64B	−72N	−68B	1.0	14.5	15.5	1.00	975	-11.2
75	FIDE 42258537	0	—	−29N	F	−66B	−56N	−48B	+78B	1.0	12.0	12.0	1.00	674	0.0
76	Carligel, Cornelia	0	ROU	−26N	−39B	+85N	F	−43B	−60N	1.0	12.0	12.0	0.00	769	0.0
77	Fomichov, Kyrylo	0	UKR	−8N	−36B	+79N	F	F	F	1.0	10.0	10.0	1.00	748	0.0
78	Eliescu, Radu-Andrei	0	ROU	−74B	−66N	+83B	−53N	−46B	−75N	1.0	9.5	10.0	0.50	1290	0.0
79	Mitran, Radu-Mihai	0	ROU	−13B	−?N	−77B	−73N	−60B	+82B	1.0	9.5	9.5	0.50	816	0.0
80	Florescu, Dana-Maria	0	ROU	−22B	−35N	F	+60N	F	F	1.0	9.0	9.0	2.50	882	-13.6
81	Stefan, Carol-Bogdan	1522	ROU	+85N	−24B	−30N	F	F	F	1.0	8.5	8.5	0.00	948	-8.4
82	Musat, Roman-Constantin	1412	ROU	−17B	=60N	−11N	−70B	−65B	−79N	0.5	14.5	15.5	1.25	844	0.0
83	Ghita, Petre-Gabriel	1498	ROU	−4N	−30B	−78N	F	=73B	F	0.5	11.0	11.0	0.75	975	-3.4
84	Ousta-Yaakov, Omer	0	ROU	−63N	−48B	F	−52N	−58B	−65N	0.0	12.0	12.0	0.00	686	0.0
85	FIDE 42252598	0	—	−81B	−56N	−76B	F	F	F	0.0	5.0	5.0	0.00	726	0.0
86	Perieteanu, Eugen	0	ROU	−9N	F	F	F	F	F	0.0	4.5	4.5	0.00	869	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1David, Teodor-SpiridonROU
+86.4
4.5 pts · #15
2Rizea, Laurentiu-MihaiROU
+70.8
4.0 pts · #24
3Butochnov, Tudor-AlexandruROU
+63.2
5.0 pts · #1

Top rating losers

1Chelaru, CristianROU
-90.8
2.5 pts · #53
2Rusu, Anastasia-SofiaROU
-78.0
2.0 pts · #76
3Bojica, VictorROU
-62.8
3.0 pts · #82

Biggest upsets

R1+301 Elo gap
Ivascu, George-Sorin1450 beat Vladescu, Ovidiu-Viorel1751
R4+301 Elo gap
Ivascu, George-Sorin1450 beat Chelaru, Cristian1751
R2+281 Elo gap
Rinescu, Maria1414 beat Serbanoiu, Constantin1695