CChessStats

Open classic tournament Kostanay

Open SwissStandard

26 players participated in this 9-round tournament, held from 13 Oct 2025 to 20 Oct 2025 in Kostanay, Kazakhstan. Top 10 Elo average was 1533, and top seed was Sultan Zharmagambetov (🇰🇿 KAZ, 1646).

Sultanbek Talgatov (🇰🇿 KAZ, 1589) won with 7.0/9, ahead of Amirzhan Zhantemirov (7.0) and Yerassyl Sapabek (6.5). Talgatov shared the lead from round 1, winning on tie-break.

The biggest upset came in round 1: Egor Suprunov (1418) beat Sultan Zharmagambetov (1646), a +228-point gap.

Location
🇰🇿Kostanay, Kazakhstan
Dates
13 Oct 2025 → 20 Oct 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 9 rounds
Top seed
🇰🇿Sultan Zharmagambetov1646
Avg top 10
1,533
Participants
26
Federations · 1 represented
🇰🇿Kazakhstan×26
Top 3

How it unfolded

Top 6 · 9 rounds

Tight race until R4; 2 players tied at 7.0/9, decided on Buchholz.

Co-leaders
12
5
2
1
1
1
1
1
2
2.54.579R1R2R3R4R5R6R7R8R9
Talgatov7Zhantemirov7Sapabek6.5Moldakhmet6Sapabek6Zharmagambetov5.5
R4–R9 · LEAD HELD

Sultanbek Talgatov held the sole lead from R4 through R9 without losing it.

R9 · TIEBREAK CLUSTER

2 players finish on 7.0/9. Talgatov takes the title on Buchholz Cut1 (45.5).

R2 · HEAD-TO-HEAD · WINNER VS 2ND

Sultanbek Talgatov beat Amirzhan Zhantemirov (White).

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Sultanbek Talgatov*
1
0
1
2Amirzhan Zhantemirov
0
*
½
1
3Yerassyl Sapabek
1
½
*—
4Abzal Moldakhmet
0
0
—*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7R8R9PtsBu C1BuSBPerfΔ
1Talgatov, Sultanbek1589KAZ+22N+2B+4N+11B=6N+5B=7B+12N−3N7.045.547.535.501715+54.4
2Zhantemirov, Amirzhan1480KAZ+21N−1N+15B+10B+8N+6B=3N=4B+5B7.045.047.033.751627+47.2
3Sapabek, Yerassyl1554KAZ−11B=10B+19N+16B=4N+15N=2B+9N+1B6.542.044.531.251592+14.4
4Sapabek, Nurassyl1486KAZ+20B+15N−1B=5N=3B+17B+6N=2N=7N6.045.548.028.501584+49.6
5Moldakhmet, Abzal1458KAZ+25N+13N=6B=4B+11N−1N+16B+7B−2N6.044.045.025.251568+42.0
6Filippov, Rodion1515KAZ+23N+8B=5N+17B=1B−2N−4B+16N=9B5.544.546.024.001480-12.0
7Zharmagambetov, Sultan1646KAZ−9B=18N+24B+13B+12N+8B=1N−5N=4B5.542.043.023.751535-44.4
8Adyrbai, Mansur1450KAZ+24B−6N+21B+9N−2B−7N+13N=15B+10N5.538.039.019.001447-2.0
9Suprunov, Egor1418KAZ+7N=12B=13N−8B=10N+14B+18N−3B=6N5.041.044.523.001530+40.8
10Baimukhanov, Zhan0KAZ=18B=3N+14B−2N=9B−12B+19N+11N−8B4.541.043.519.0014290.0
11Karin, Arlan1411KAZ+3N+17B+12N−1N−5B−16B=15N−10B+18B4.540.544.020.501645+75.6
12Shudegov, Kirill1532KAZ+14B=9N−11B+18N−7B+10N+17B−1BF4.539.042.519.001453-27.2
13Martynova, Irina1539KAZ+26N−5B=9B−7NF+23N−8B+20B+22N4.532.032.59.001329-56.4
14Aitmukhambetov, Aslan0KAZ−12N+25B−10N+21B−17N−9N=22B+23B+19N4.526.027.08.0013150.0
15Tasmagambetov, Didar0KAZ+19N−4B−2N+23NF−3B=11B=8N+17B4.040.542.013.0014210.0
16Bagitzhan, Alikhan0KAZ−17N+19B+18B−3N+20B+11N−5N−6BF4.037.039.513.0014310.0
17Moshenskaya, Sofiya1505KAZ+16B−11N+20B−6N+14B−4N−12N+21B−15N4.035.537.513.00678-86.4
18Balabaeva, Asima1487KAZ=10N=7B−16N−12B+21N+24N−9B=22B−11N3.532.033.09.001244-61.2
19Makhmut, Sayana1464KAZ−15B−16N−3B+26N=23B+20N−10BF−14B2.528.028.03.75745-14.4
20Kizdarbekov, Daler0KAZ−4N+22B−17N+24B−16N−19B=26B−13NF2.524.524.53.2512310.0
21Serikzhan, Emir0KAZ−2B+26B−8N−14N−18BF+24N−17NF2.027.527.51.506820.0
22Kasymov, Tair1413KAZ−1B−20N−23BFF+26B=14N=18N−13B2.025.526.04.501265-20.0
23Amangali, Asylkhan0KAZ−6B−24N+22N−15B=19N−13BF−14NF1.526.026.03.2513900.0
24Zhantemirova, Ameliya0KAZ−8N+23B−7N−20NF−18B−21BFF1.023.023.01.507280.0
25Utenov, Ruslan0KAZ−5B−14N+26NFFFFFF1.013.013.00.506590.0
26Ahmet, Rustem0KAZ−13B−21N−25B−19BF−22N=20NFF0.515.515.51.256650.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets