I-st International Chess tournament"Sofia spring"-A, Under the aegis of BSCF

SwissStandard

83 players participated in this 9-round tournament, held from 23 May 2025 to 29 May 2025 in Sofia, Park hotel "Moskva", Bulgaria. 46 titled players from 8 federations. Top 10 Elo average was 2437, and top seed was Krasimir Rusev (🇧🇬 BUL, GM, 2478).

Roman Dehtiarov (🇺🇦 UKR, IM, 2405) won with 7.0/9, ahead of Christos Krallis (6.5) and Radoslav Dimitrov (6.5). Dehtiarov shared the lead from round 7 and won solo starting round 8.

The biggest upset came in round 2: Ivelina Hristova (1812) beat Beloslava Krasteva (FM, 2332), a +520-point gap.

Location

🇧🇬Sofia, Park hotel "Moskva", Bulgaria

Dates

23 May 2025 → 29 May 2025

Time control

Standard: 120 minutes for first 40 moves and 15 minutes for the rest of the game with 30 sec. incr. from move 40

System

Swiss · 9 rounds

Top seed

🇧🇬GMKrasimir Rusev2478

Avg top 10

2,437

Participants

Titled players · 46

GM×8

IM×11

FM×13

CM×8

WGM×2

WIM×1

WCM×3

Federations · 8 represented

🇧🇬Bulgaria×35

🇹🇷Turkiye×12

🇬🇷Greece×7

🇮🇳India×5

🇳🇱Netherlands×4

🇨🇿Czech Republic×4

🇮🇱Israel×3

🇷🇸Serbia×2

Top 3

🥇
IMRoman Dehtiarov
🇺🇦UKR·2405
7.0pts·2498perf+11.2
🥈
IMChristos Krallis
🇬🇷GRE·2371
6.5pts·2455perf+11.6
🥉
GMRadoslav Dimitrov
🇧🇬BUL·2474
6.5pts·2478perf+2.2

How it unfolded

Top 6 · 9 rounds

IM Roman Dehtiarov led from R8; +0.5-point edge over the runner-up. Title race converged from 7 co-leaders at R4 to 1 by R8.

Co-leaders

Dehtiarov7Dimitrov6.5Elgersma6.5Ouellet6.5Krallis6.5Spasov6.5— ex-leaders:Nikolovled R6, #20

R8 · LEADER CHANGE28 May

IM Roman Dehtiarov takes the sole lead (6.5/8).

WIN STREAKS · 3 top finishers

IM Roman Dehtiarov 4 wins (R5–R8)GM Radoslav Dimitrov 3 wins (R2–R4)FM Onno Elgersma 3 wins (R7–R9)

R6 · FORMER LEADER FALL

GM Momchil Nikolov held the sole lead at R6 but finished #20.

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1IMRoman Dehtiarov	*	—	—	½
2GMRadoslav Dimitrov	—	*	—	½
3FMOnno Elgersma	—	—	*	—
4WGMMaili-Jade Ouellet	½	½	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	R7	R8	R9	Pts	Bu C1	Bu	SB	Perf	Δ
1	Dehtiarov, RomanIM	2405	UKR	+31B	+18N	=4B	−28N	+55B	+11N	+8B	+15B	=2N	7.0	45.0	48.5	37.50	2498	+11.2
2	Krallis, ChristosIM	2371	GRE	+57N	+19B	=16N	+30B	=3N	=29B	+9N	=4N	=1B	6.5	46.0	49.5	34.50	2455	+11.6
3	Dimitrov, RadoslavGM	2474	BUL	=39B	+81N	+65B	+21N	=2B	=4N	=15N	+10B	=7N	6.5	44.0	45.0	30.25	2478	+2.2
4	Ouellet, Maili-JadeWGM	2305	CAN	+72B	+32N	=1N	+75B	=15N	=3B	+29N	=2B	=9N	6.5	43.0	45.5	29.75	2476	+44.8
5	Sidhant, MohapatraIM	2357	IND	+50N	=12B	=45N	=20B	+40N	=49B	=14N	+16B	+17N	6.5	41.0	45.0	32.25	2367	+1.7
6	Elgersma, OnnoFM	2397	NED	=59N	=37B	+41N	+19B	=17N	−14B	+32N	+23B	+15N	6.5	40.5	44.0	31.75	2365	-1.6
7	Spasov, VasilGM	2356	BUL	+73B	−28N	+48B	+33N	=10B	=22N	+34B	+14N	=3B	6.5	40.5	43.0	29.75	2337	+1.6
8	Tilicheev, ViacheslavGM	2428	SRB	+17N	=14B	=20N	+16B	+23N	=9B	−1N	+19B	=22N	6.0	45.5	50.5	32.50	2379	-4.4
9	Risteski, EmilIM	2359	MKD	+53B	+47N	+33B	=15B	=29N	=8N	−2B	+28N	=4B	6.0	42.0	45.5	27.75	2366	+3.7
10	Zwirs, NicoIM	2454	NED	=37N	+59B	+14N	=46B	=7N	=16B	+49N	−3N	+21B	6.0	41.5	45.0	28.25	2405	-4.3
11	Mitev, ValentinFM	2308	BUL	=67N	+54B	+12N	−29B	+47N	−1B	+40N	=13B	+25N	6.0	40.5	43.5	27.50	2359	+14.6
12	Yilmaz, BaverFM	2233	TUR	+71B	=5N	−11B	+54N	−21B	+31N	+30B	+46N	=14B	6.0	39.5	42.0	25.00	2296	+36.4
13	Druska, JurajGM	2446	SVK	−42N	+52B	+79B	=22N	+26B	=46N	=28B	=11N	+24B	6.0	38.0	39.5	25.25	2280	-14.6
14	Krishnan, RitvikFM	2266	IND	+70B	=8N	−10B	+39N	+31B	+6N	=5B	−7B	=12N	5.5	46.5	49.0	27.25	2354	+22.2
15	Nikolov, MomchilGM	2436	BUL	+48B	+24N	+55B	=9N	=4B	+28N	=3B	−1N	−6B	5.5	46.0	49.5	26.50	2376	-5.2
16	Jirasek, PavelFM	2288	CZE	+38B	+82N	=2B	−8N	+18B	=10N	=21B	−5N	+30B	5.5	44.5	45.0	23.75	2299	+8.4
17	Ribstein, Orel	2118	ISR	−8B	+38N	+24B	+35N	=6B	=21N	=46B	+34N	−5B	5.5	42.5	46.5	26.25	2368	+117.2
18	Javadov, HabilCM	2201	AZE	+51N	−1B	=70N	+27B	−16N	+50B	=36N	+32B	=23N	5.5	39.5	42.0	23.50	2231	+10.6
19	Nikolov, SashoIM	2257	BUL	+78B	−2N	+53B	−6N	+48B	=55N	+26B	−8N	+28B	5.5	39.5	41.5	20.75	2278	+4.5
20	Mehmed, ElifWGM	2248	SRB	+68N	=29B	=8B	=5N	−22B	=39N	=47B	+53N	+35B	5.5	38.5	41.5	23.75	2284	+11.2
21	Filip, Lucian-IoanIM	2345	ROU	+77N	+43B	=30N	−3B	+12N	=17B	=16N	=25B	−10N	5.0	43.5	45.5	22.75	2257	-8.9
22	Avsar, GedizFM	2004	TUR	=83N	=36B	+25N	=13B	+20N	=7B	=23N	F	=8B	5.0	43.0	43.5	24.75	2409	+152.8
23	Gkavardinas, AntoniosFM	2313	GRE	+61B	−33N	+60B	+71N	−8B	+44N	=22B	−6N	=18B	5.0	39.0	41.5	19.25	2168	-28.2
24	Shilon Rahav, EliranFM	2235	ISR	+64N	−15B	−17N	=77B	+76N	=30B	+41N	+36B	−13N	5.0	36.0	38.0	17.75	2162	-27.2
25	Boev, Viktor	2213	BUL	−33B	+61N	−22B	+53N	+60B	=65N	+55B	=21N	−11B	5.0	34.5	38.0	18.25	2193	-3.2
26	Georgiev, Biser	2218	BUL	=62N	+56B	−29N	+70B	−13N	+57B	−19N	+48B	=49N	5.0	34.5	37.0	17.25	2188	-5.2
27	Filip, AndreiFM	2335	ROU	=81B	=39N	=31B	−18N	=77B	=53N	+63B	+37N	=47B	5.0	32.0	33.0	17.75	2159	-39.0
28	Celebi, Mehmet AlperCM	1908	TUR	+36N	+7B	=75N	+1B	=46N	−15B	=13N	−9B	−19N	4.5	45.0	47.5	24.25	2294	+148.4
29	Krishna C R GIM	2453	IND	+41B	=20N	+26B	+11N	=9B	=2N	−4B	F	F	4.5	45.0	45.0	24.50	2380	-5.4
30	Danov, Valentin	1947	BUL	+35B	+34N	=21B	−2N	=65B	=24N	−12N	+43B	−16N	4.5	41.5	45.0	20.25	2274	+133.2
31	Sertbay, Huseyin	2112	TUR	−1N	+64B	=27N	+36B	−14N	−12B	=38N	+52B	=41N	4.5	41.0	44.5	19.00	2166	+12.2
32	Velikov, Nikola	1872	BUL	+40N	−4B	+44B	=80N	=34B	+35N	−6B	−18N	=36N	4.5	41.0	42.5	18.75	2240	+144.4
33	Doychev, Ivan	1889	BUL	+25N	+23B	−9N	−7B	=43N	−40B	+60B	−47N	+53B	4.5	39.0	42.5	19.25	2201	+127.6
34	Ribstein, NatiIM	2267	ISR	+74N	−30B	+37N	=47B	=32N	+41B	−7N	−17B	=42N	4.5	38.5	41.0	18.00	2095	-18.6
35	Katsanis, Vasileios DimFM	2266	GRE	−30N	+66B	+42N	−17B	+45N	−32B	+43N	=49B	−20N	4.5	37.5	40.5	18.50	2097	-74.0
36	Mladenov, Ilian	2237	BUL	−28B	=22N	+72B	−31N	+54B	+38N	=18B	−24N	=32B	4.5	37.0	39.5	18.00	2031	-44.6
37	Kishore Kumar Jaganathan	2157	IND	=10B	=6N	−34B	=74N	−38B	+69B	+67N	−27B	+50N	4.5	36.5	39.0	17.50	2143	-3.4
38	Ivanov, SvetlenCM	1975	BUL	−16N	−17B	=57N	+66B	+37N	−36B	=31B	+63N	=44B	4.5	36.0	39.0	17.25	2145	+77.6
39	Iskos, Alexandros	2165	GRE	=3N	=27B	=76N	−14B	+70N	=20B	=45N	+40B	F	4.5	36.0	36.0	18.75	2227	+14.8
40	Raeva, ElitsaWIM	2203	BUL	−32B	=72N	+58B	+79N	−5B	+33N	−11B	−39N	+54B	4.5	35.5	37.0	14.25	2025	-35.8
41	Aydemir, Umut	2140	TUR	−29N	+74B	−6B	+78N	+80B	−34N	−24B	+56N	=31B	4.5	33.0	34.5	11.75	2191	+20.0
42	Sedivy, Martin	2123	CZE	+13B	−55N	−35B	=56N	−51B	=54N	+68B	+70N	=34B	4.5	32.5	35.0	17.25	2102	-5.2
43	Doraszelski, Alexander	2185	GER	+58B	−21N	−71B	+81N	=33B	+51N	−35B	−30N	+56B	4.5	32.0	33.0	14.25	1996	-40.2
44	Chkhaidze, NikolozFM	2173	GEO	+69N	−75B	−32N	+52B	+71N	−23B	=56N	=50B	=38N	4.5	31.0	33.5	15.50	2026	-31.6
45	Safarik, Jakub	2172	CZE	=79B	+80N	=5B	−55N	−35B	+77N	=39B	+51N	F	4.5	30.5	32.0	13.75	2205	+9.4
46	Ninov, NikolaiGM	2325	BUL	+66N	F	+49B	=10N	=28B	=13B	=17N	−12B	F	4.0	39.5	39.5	18.00	2248	-5.2
47	Todev, SimeonCM	2171	BUL	+76N	−9B	F	=34N	−11B	=56B	=20N	+33B	=27N	4.0	37.0	37.5	15.75	2137	-8.0
48	Mantazis, Georgios Rafail	2120	GRE	−15N	+68B	−7N	+69B	−19N	=74B	+61B	−26N	=51B	4.0	36.0	38.5	12.75	2050	-31.6
49	Peycheva, GerganaFM	2208	BUL	=56N	+62B	−46N	+76B	F	=5N	−10B	=35N	=26B	4.0	35.5	37.5	15.25	2151	-8.0
50	Gokturk, Murat KutayCM	2072	TUR	−5B	=78N	+62B	−65N	+79B	−18N	+58B	=44N	−37B	4.0	33.5	35.0	11.75	2032	-19.2
51	Dal, Emir Saygin	1869	TUR	−18B	−60N	=66N	+67B	+42N	−43B	+57N	−45B	=48N	4.0	33.0	36.0	14.50	2066	+80.6
52	Trendafilov, Simeon	2005	BUL	−55B	−13N	+64B	−44N	+78B	−63N	+62B	−31N	+58B	4.0	32.5	34.5	12.50	2037	+9.2
53	La Barbera, Manfredi	2084	ITA	−9N	+69B	−19N	−25B	+82N	=27B	+71N	−20B	−33N	3.5	37.0	37.5	8.50	2011	-36.0
54	Kyparissopoulos, Spyridon	1981	GRE	=65B	−11N	+63N	−12B	−36N	=42B	+76N	=59B	−40N	3.5	36.0	38.0	11.25	2081	+19.6
55	Drenchev, PetarGM	2334	BUL	+52N	+42B	−15N	+45B	−1N	=19B	−25N	F	F	3.5	36.0	36.0	15.75	2230	-8.9
56	Seker, Kadir Mert	1881	TUR	=49B	−26N	=81B	=42B	+59N	=47N	=44B	−41B	−43N	3.5	34.5	35.5	12.50	2068	+75.2
57	Nenova, Andzhelika	2088	BUL	−2B	−70N	=38B	+62N	+58B	−26N	−51B	+61N	F	3.5	34.0	36.5	12.75	1975	-49.6
58	Pehlivanova, AleksandraWCM	1855	BUL	−43N	+63B	−40N	=59B	−57N	+66B	−50N	+67B	−52N	3.5	30.5	33.5	11.25	2007	+62.8
59	Boeren, Jurriaan	2104	NED	=6B	−10N	=78B	=58N	−56B	=70B	+69N	=54N	F	3.5	30.5	30.5	12.00	1992	-25.6
60	Ersoz, Teoman GuneyCM	2090	TUR	−75N	+51B	−23N	+82B	−25N	=71B	−33N	+66B	F	3.5	30.0	30.5	8.75	2005	-37.6
61	Marzakov, Mihail	2002	BUL	−23N	−25B	−69N	=64N	+72B	+76B	−48N	−57B	+71N	3.5	29.0	31.0	8.75	1937	-35.6
62	Uzun, Kuzey	1891	TUR	=26B	−49N	−50N	−57B	=73N	+81B	−52N	+72B	=66N	3.5	28.5	29.5	8.75	1992	+42.0
63	Angelov, Georgi	2128	BUL	F	−58N	−54B	+72N	=74B	+52B	−27N	−38B	+68N	3.5	28.5	28.5	10.75	1960	-36.2
64	Popzafirov, Danail	1900	BUL	−24B	−31N	−52N	=61B	−67N	=73B	=72N	+82B	+79N	3.5	26.5	27.0	6.25	1920	+5.6
65	Sai Agni Jeevitesh, JIM	2300	IND	=54N	+67B	−3N	+50B	=30N	=25B	F	F	F	3.5	26.5	26.5	13.50	2172	-7.9
66	Tsolov, Aleksandar	2002	BUL	−46B	−35N	=51B	−38N	+68B	−58N	+79B	−60N	=62B	3.0	30.5	32.0	8.25	1874	-65.2
67	Mihaylov, BozhidarCM	1999	BUL	=11B	−65N	−80B	−51N	+64B	+79N	−37B	−58N	=72N	3.0	29.0	30.5	9.25	1940	-36.4
68	Rasheva, NoraWCM	1912	BUL	−20B	−48N	−77N	+73B	−66N	+82B	−42N	+69B	−63B	3.0	28.0	28.5	6.00	1909	-5.2
69	Esmer, Ege	1823	BUL	−44B	−53N	+61B	−48N	+81B	−37N	−59B	−68N	+82B	3.0	27.5	28.0	5.00	1916	+34.4
70	Metiner, Yekta Efe	1962	TUR	−14N	+57B	=18B	−26N	−39B	=59N	F	−42B	=73N	2.5	34.5	36.5	9.25	2011	+16.8
71	Aynaoglu, EfeCM	1894	TUR	−12N	+77B	+43N	−23B	−44B	=60N	−53B	−73N	−61B	2.5	33.0	35.0	8.25	1959	+20.0
72	Omota, Vlad	1989	NED	−4N	=40B	−36N	−63B	−61N	+78N	=64B	−62N	=67B	2.5	32.5	34.5	7.50	1900	-23.4
73	Mikov, Simeon	2047	BUL	−7N	−76B	−74N	−68N	=62B	=64N	F	+71B	=70B	2.5	26.0	26.0	7.25	1821	-98.0
74	Theodoridis, Charalampos	1967	GRE	−34B	−41N	+73B	=37B	=63N	=48N	F	F	F	2.5	23.5	23.5	8.50	2086	+34.0
75	Janzelj, TimIM	2396	SLO	+60B	+44N	=28B	−4N	F	F	F	F	F	2.5	23.0	23.0	10.25	2236	-6.8
76	Zahariev, Velislav	1812	BUL	−47B	+73N	=39B	−49N	−24B	−61N	−54B	=78N	F	2.0	29.0	29.0	5.75	1896	+22.0
77	Ivanova, DilyanaWCM	2015	BUL	−21B	−71N	+68B	=24N	=27N	−45B	F	F	F	2.0	27.5	27.5	8.00	2024	-2.4
78	Bayatov, Mario	1928	BUL	−19N	=50B	=59N	−41B	−52N	−72B	=82N	=76B	F	2.0	26.5	26.5	5.00	1830	-42.0
79	Hristova, Ivelina	1812	BUL	=45N	+83B	−13N	−40B	−50N	−67B	−66N	F	−64B	1.5	29.0	29.0	2.75	1846	+3.2
80	Rusev, KrasimirGM	2478	BUL	F	−45B	+67N	=32B	−41N	F	F	F	F	1.5	16.5	16.5	5.25	2030	-20.8
81	Sucharda, Tomas	2014	CZE	=27N	−3B	=56N	−43B	−69N	−62N	F	F	F	1.0	26.0	26.0	4.25	1815	-31.6
82	Dimitrov, Ventsislav	1802	BUL	F	−16B	F	−60N	−53B	−68N	=78B	−64N	−69N	0.5	28.0	28.0	1.00	1569	-56.8
83	Krasteva, BeloslavaFM	2332	BUL	=22B	−79N	F	F	F	F	F	F	F	0.5	6.5	6.5	2.50	1775	-25.8

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Avsar, GedizFMTUR
+152.8
5.0 pts · #22
2Celebi, Mehmet AlperCMTUR
+148.4
4.5 pts · #40
3Velikov, NikolaBUL
+144.4
4.5 pts · #45

Top rating losers

1Mikov, SimeonBUL
-98.0
2.5 pts · #72
2Katsanis, Vasileios DimFMGRE
-74.0
4.5 pts · #28
3Tsolov, AleksandarBUL
-65.2
3.0 pts · #68

Biggest upsets

R2+520 Elo gap
Hristova, Ivelina1812 beat FMKrasteva, Beloslava2332
R4+497 Elo gap
CMCelebi, Mehmet Alper1908 beat IMDehtiarov, Roman2405
R2+448 Elo gap
CMCelebi, Mehmet Alper1908 beat GMSpasov, Vasil2356