CChessStats

DIUP Boys 11

Open SwissStandard

15 players participated in this 7-round tournament, held from 31 Oct 2025 to 03 Nov 2025 in Borovetz, Bulgaria. Top 10 Elo average was 1570, and top seed was Nikola Malchev (πŸ‡§πŸ‡¬ BUL, 1779).

Georgi Koev (πŸ‡§πŸ‡¬ BUL, 1716) won with 6.5/7, ahead of Nikola Malchev (6.5) and Stojko Kotev (4.5). Koev shared the lead from round 1, winning on tie-break.

The biggest upset came in round 3: Maksim Muserov (1439) beat Dimitar D. Dimitrov (1579), a +140-point gap.

Location
πŸ‡§πŸ‡¬Borovetz, Bulgaria
Dates
31 Oct 2025 β†’ 03 Nov 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss Β· 7 rounds
Top seed
πŸ‡§πŸ‡¬Nikola Malchev1779
Avg top 10
1,570
Participants
15
Federations Β· 1 represented
πŸ‡§πŸ‡¬BulgariaΓ—14
Top 3
  • πŸ₯‡
    Georgi Koev
    πŸ‡§πŸ‡¬BULΒ·1716
    6.5ptsΒ·1951perf+50.0
  • πŸ₯ˆ
    Nikola Malchev
    πŸ‡§πŸ‡¬BULΒ·1779
    6.5ptsΒ·1950perf+35.6
  • πŸ₯‰
    Stojko Kotev
    πŸ‡§πŸ‡¬BULΒ·1493
    4.5ptsΒ·1583perf+31.2

How it unfolded

Top 6 Β· 7 rounds

Tight race until R7; 2 players tied at 6.5/7, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 2 at the finish.

Co-leaders
5
3
4
2
2
2
2
23.55.57R1R2R3R4R5R6R7
Malchev6.5Koev6.5Kotev4.5Genov4Dimitrov4Aleksandrov4
R7 Β· TIEBREAK CLUSTER

2 players finish on 6.5/7. Koev takes the title on Buchholz Cut1 (25.5).

R3 Β· HEAD-TO-HEAD Β· WINNER VS 2ND

Nikola Malchev drew with Georgi Koev (White).

WIN STREAKS Β· 3 top finishers

Nikola Malchev 4 wins (R4–R7)Georgi Koev 4 wins (R4–R7)Stojko Kotev 3 wins (R5–R7)

Key matchups Β· top 4

Head-to-head between the four finishers
Player1234
1Nikola Malchev*
Β½
1
1
2Georgi Koev
Β½
*β€”
1
3Stojko Kotev
0
β€”*
0
4Samuil Genov
0
0
1
*

Grille amΓ©ricaine

#PlayerEloFedR1R2R3R4R5R6R7PtsBu C1BuSBPerfΞ”
1Koev, Georgi1716BUL+4N+6B=2N+9B+8N+7B+5N6.525.528.024.751951+50.0
2Malchev, Nikola1779BUL+3B+5N=1B+7N+4B+10N+11B6.525.027.023.751950+35.6
3Kotev, Stojko1493BULβˆ’2N=13B+11Nβˆ’4N+15B+8B+7N4.521.521.510.001583+31.2
4Genov, Samuil1490BULβˆ’1B+10N+14N+3Bβˆ’2Nβˆ’5B+12N4.026.027.510.501602+32.8
5Dimitrov, Dimitar D.1579BUL+13Bβˆ’2Bβˆ’9N+15N+6B+4Nβˆ’1B4.025.525.510.001507-21.2
6Aleksandrov, Atanas0BUL+10Bβˆ’1N+15Bβˆ’8Nβˆ’5N+9B+14N4.020.520.56.5014790.0
7Angelov, Veselin1614BUL+14B+15N=8Bβˆ’2B+9Nβˆ’1Nβˆ’3B3.525.025.05.751437-18.8
8Chalakov, Nikola N.1510BUL=11B+12N=7N+6Bβˆ’1Bβˆ’3N=10B3.523.025.010.001470-14.4
9Muserov, Maksim1439BUL=12B+11N+5Bβˆ’1Nβˆ’7Bβˆ’6NF2.522.022.07.001549+27.6
10Kamenov, Mihail1510BULβˆ’6Nβˆ’4BF+13N+12Bβˆ’2B=8N2.522.022.05.751556+11.2
11Zhivkov, Ventsislav1413BUL=8Nβˆ’9Bβˆ’3BF=14N+13Bβˆ’2N2.020.520.54.501387-10.4
12Asenov, Martin1536BUL=9Nβˆ’8B=13N+14Bβˆ’10NFβˆ’4B2.016.016.03.751243-74.8
13Iliev, Pavel Il.1468BULβˆ’5N=3N=12Bβˆ’10BFβˆ’11N+15B2.015.015.03.251265-48.8
14Rusev, Viktor0BULβˆ’7NFβˆ’4Bβˆ’12N=11B+15Nβˆ’6B1.515.515.51.0011630.0
15FIDE 29775400β€”Fβˆ’7Bβˆ’6Nβˆ’5Bβˆ’3Nβˆ’14Bβˆ’13N0.019.519.50.007080.0

Key insights

Biggest movers and upsets β€” the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets
DIUP Boys 11 (2025) β€” Borovetz, Bulgaria | Chess Tournament Results | ChessStats