CChessStats

Sofia Chess Summer 2025 B-Under the aegis of BSCF

Open SwissStandard

27 players participated in this 6-round tournament, held from 19 Jul 2025 to 20 Jul 2025 in Sofia, Bulgaria. Top 10 Elo average was 1372, and top seed was Daniel P Todorov (🇧🇬 BUL, 1656).

Kaloyan Kaloyanov (🇧🇬 BUL, 1548) won with 5.5/6, ahead of Iliya Iliev Iliev (5.0) and Daniel P Todorov (4.5). Kaloyanov took the lead from round 5.

The biggest upset came in round 2: Valeri P. Petrov (1453) beat Avigeya Vasileva (1583), a +130-point gap.

Location
🇧🇬Sofia, Bulgaria
Dates
19 Jul 2025 → 20 Jul 2025
Time control
Standard: 30 minutes for game with 30 seconds increment from move 1
System
Swiss · 6 rounds
Top seed
🇧🇬Daniel P Todorov1656
Avg top 10
1,372
Participants
27
Federations · 1 represented
🇧🇬Bulgaria×20
Top 3

How it unfolded

Top 6 · 6 rounds

Kaloyan Kaloyanov led from R5; +0.5-point edge over the runner-up.

Co-leaders
13
7
3
1
1
1
1.534.56R1R2R3R4R5R6Kaloyanov takes lead
R5 · LEADER CHANGE20 Jul

Kaloyan Kaloyanov takes the sole lead (4.5/5).

WIN STREAKS · 3 top finishers

Kaloyan Kaloyanov 3 wins (R1–R3)Iliya Iliev Iliev 3 wins (R1–R3)Daniel P Todorov 4 wins (R1–R4)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Kaloyan Kaloyanov*
1
2Iliya Iliev Iliev*
0
3Daniel P Todorov
0
1
*
½
4Tsvetan Danev
½
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6PtsBu C1BuSBPerfΔ
1Kaloyanov, Kaloyan1548BUL+21B+10N+15B=13N+3N+5B5.518.520.519.002366+63.6
2Iliev, Iliya Iliev1518BUL+24N+23B+5N3B+17N+6B5.017.519.515.001603+8.8
3Todorov, Daniel P1656BUL+16B+6N+14B+2N1B=4N4.522.025.017.251626-6.8
4Danev, Tsvetan1483BUL+26N8B+21N+22B+13N=3B4.515.515.59.251655+8.8
5Petrov, Valeri P.1453BUL+18B+7N2B+10N+14B1N4.021.524.514.001555+0.8
6Angelova, Katrin0BUL+?N3B+24N+8B+7B2N4.019.519.510.0014630.0
7Vasileva, Avigeya1583BUL+19N5B+9N+11B6N+13B4.019.021.513.501517-7.6
8Statkov, Kaloyan0BUL+11B+4N13B6N+15B+14N4.018.521.514.5015750.0
9Zheleva, Eleonora1484BUL=13B+20N7B=25N+18B+17N4.015.517.010.75784-14.4
10FIDE 29744790+?N1B+?N5B+16N+19B4.015.015.05.507480.0
11Doychev, Nikola0BUL8N+27B+?N7N+20B+22B4.012.512.54.507840.0
12Pazvantova, Emilia0BUL+25B15N16B+?N=19N+20B3.512.512.55.256910.0
13Katsarski, Yan0BUL=9N+?B+8N=1B4B7N3.022.022.08.7513320.0
14Hristov, Georgi1496BUL+17B+22N3N+16B5N8B3.018.520.58.00803-36.0
15Dimitrova, Ema1495BUL+27N+12B1N17B8N+21B3.018.018.05.50744-17.2
16Glazunov, Alexandr0BUL3N+26B+12N14N10B+23B3.017.017.05.508110.0
17Ivanov, Simon E.0BUL14N+?B+23N+15N2B9B3.017.017.05.0013230.0
18FIDE 297442805N19B+27N+21B9N+?B3.012.512.52.007170.0
19Gospodinov, Konstantin0BUL7B+18N22B+?N=12B10N2.516.516.54.757840.0
20Stoyanov, Krum0BUL=?N9B+?N+23B11N12N2.513.513.52.006830.0
21Grancharova, Katerina0BUL1N+?B4B18N+25B15N2.017.517.51.507080.0
22Vasilev, Kaloyan K.0BULF14B+19N4N+24B11N2.016.016.04.507280.0
23FIDE 29726200+?B2N17B20N+26B16N2.013.513.50.007250.0
24FIDE 297441002B+25N6B+?N22N?B2.012.512.51.507250.0
25FIDE 2974436012N24B+26N=9B21NF1.511.511.52.0014830.0
26FIDE 297448704B16N25BF23NF0.011.011.00.006890.0
27FIDE 2971810015B11N18B?BF?N0.010.010.00.006910.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets