Vladimir Dvorkovich Memorial - Aktobe Open 2025 (CHALLENGERS)

SwissStandard

95 players participated in this 9-round tournament, held from 22 Jun 2025 to 30 Jun 2025 in Aktobe, Kazakhstan. 44 titled players from 4 federations. Top 10 Elo average was 2284, and top seed was Kirill Kuderinov (🇰🇿 KAZ, IM, 2350).

Alan Petukhov (🇰🇿 KAZ, FM, 2313) won with 7.0/9, ahead of Bakhtiyar Nugumanov (7.0) and Konstantin Kazakov (6.5). Petukhov took the lead from round 8, winning on tie-break.

The biggest upset came in round 2: Anton Kolosovskiy (1933) beat Ilya Moisseyenko (FM, 2273), a +340-point gap.

Location

🇰🇿Aktobe, Kazakhstan

Dates

22 Jun 2025 → 30 Jun 2025

Time control

Standard: 90 minutes with 30 second increment from move 1

System

Swiss · 9 rounds

Top seed

🇰🇿IMKirill Kuderinov2350

Avg top 10

2,284

Participants

Titled players · 44

IM×5

FM×18

CM×13

WFM×6

WCM×2

Federations · 4 represented

🇰🇿Kazakhstan×85

🇷🇺Russia×5

FIDE (no federation)×4

🇧🇾Belarus×1

Top 3

🥇
FMAlan Petukhov
🇰🇿KAZ·2313
7.0pts·2344perf+8.0
🥈
IMBakhtiyar Nugumanov
🇰🇿KAZ·2305
7.0pts·2375perf+8.5
🥉
IMKonstantin Kazakov
🇰🇿KAZ·2306
6.5pts·2335perf+4.6

How it unfolded

Top 6 · 9 rounds

Tight race until R9; 2 players tied at 7.0/9, decided on Buchholz. Title race narrowed from 3 co-leaders at R4 to 2 at the finish.

Co-leaders

Nugumanov7Petukhov7Talgatov6.5Kazakov6.5Meirkhanuly6.5Beristenov6.5— ex-leaders:Askarovled R7, #15

R8 · LEADER CHANGE29 Jun

FM Alan Petukhov takes the sole lead (6.5/8).

R9 · TIEBREAK CLUSTER

2 players finish on 7.0/9. Petukhov takes the title on Buchholz Cut1 (44.0).

R3–R5 · WIN STREAK

IM Bakhtiyar Nugumanov won 3 in a row (R3–R5).

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1IMBakhtiyar Nugumanov	*	—	—	½
2FMAlan Petukhov	—	*	—	½
3FMNazar Talgatov	—	—	*	—
4IMKonstantin Kazakov	½	½	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	R7	R8	R9	Pts	Bu C1	Bu	SB	Perf	Δ
1	Petukhov, AlanFM	2313	KAZ	+33B	=32N	+34B	+23N	=30B	=18N	+19B	+10N	=3B	7.0	44.0	49.0	38.00	2344	+8.0
2	Nugumanov, BakhtiyarIM	2305	KAZ	+65B	−58N	+61B	+79N	+11B	=12N	+13B	=3N	+10B	7.0	42.5	45.5	35.25	2375	+8.5
3	Kazakov, KonstantinIM	2306	KAZ	+88N	+38B	+21N	+6B	=18N	=10B	=4N	=2B	=1N	6.5	49.0	51.5	35.50	2335	+4.6
4	Amangeldy, ErnurFM	2235	KAZ	+74B	=44N	+22B	+32N	=10B	+30N	=3B	=5N	=7B	6.5	45.5	49.0	34.00	2330	+46.0
5	Kuderinov, KirillIM	2350	KAZ	+26N	+79B	−31N	+59B	=6N	+32B	=14N	=4B	+19N	6.5	44.0	47.0	32.50	2242	-9.0
6	Meirkhanuly, AkylzhanFM	2141	KAZ	+71B	+45N	+58B	−3N	=5B	=44N	+30B	+13N	=17B	6.5	43.0	46.5	31.50	2320	+82.1
7	Dumanuly, SultanbeibarysFM	2212	KAZ	−78B	+42N	+45B	+27N	−19B	+34N	+31B	+21B	=4N	6.5	42.5	45.5	33.75	2217	+6.5
8	Talgatov, NazarFM	2197	KAZ	=56B	+75N	=44B	+34N	=33B	=19N	+20B	=18N	+22B	6.5	41.0	44.5	32.00	2176	-3.2
9	Beristenov, Kair	2183	KAZ	+69B	−34N	=78B	−43N	+63B	+70B	+38N	+23N	+18B	6.5	36.5	39.5	28.50	2146	-10.3
10	Askarov, BakhtiyarIM	2297	KAZ	+76N	+64B	+19N	+31B	=4N	=3N	+18B	−1B	−2N	6.0	47.0	50.5	30.00	2289	+0.1
11	Khazhatuly, AlikhanFM	2173	KAZ	+68N	+14B	+28N	−18B	−2N	+27B	=24N	+44B	=15N	6.0	45.5	49.0	30.75	2201	+13.7
12	Sadubayev, AiratFM	2211	KAZ	−80N	+51B	+16N	+60B	+28N	=2B	=25N	=15B	=14N	6.0	44.5	47.5	32.25	2190	-3.0
13	Tleukhanov, YerlanFM	2296	KAZ	+52B	+72N	−18B	+58N	+15N	+25B	−2N	−6B	+41N	6.0	44.0	47.5	28.50	2227	-13.4
14	Tanikin, Isabek	2004	KAZ	+85B	−11N	+53B	+39N	=35B	+17N	=5B	=36N	=12B	6.0	44.0	46.5	29.25	2231	+106.0
15	Tulendinov, DinmukhammedFM	2104	KAZ	+42B	+40N	=30B	+41N	−13B	+43B	=21N	=12N	=11B	6.0	43.5	48.0	30.75	2205	+24.6
16	Zharas, AldiyarCM	1969	KAZ	+29B	−21N	−12B	+84N	+39B	−31N	+58B	+35N	+36B	6.0	41.0	44.0	27.50	2235	+119.7
17	Moisseyenko, IlyaFM	2273	KAZ	=47N	−20B	+86N	+46B	+50N	−14B	+43N	+32B	=6N	6.0	41.0	43.5	26.50	2104	-31.0
18	Daulet, AlikhanFM	2074	KAZ	+73N	+62B	+13N	+11N	=3B	=1B	−10N	=8B	−9N	5.5	48.5	52.0	29.50	2248	+83.6
19	Zhakan, Erasyl	2105	KAZ	+54N	+80B	−10B	+90N	+7N	=8B	−1N	+25B	−5B	5.5	45.5	47.5	24.75	2218	+55.1
20	Kolosovskiy, Anton	1933	KAZ	=36B	+17N	−23B	=22N	+58B	+28B	−8N	+31N	=27B	5.5	44.5	48.5	28.50	2196	+61.6
21	Mazhkenov, Alisher	2118	KAZ	+51N	+16B	−3B	=44N	+78B	+33N	=15B	−7N	=26B	5.5	44.5	47.5	26.50	2135	+4.6
22	Kenzhalin, Nursultan	2060	KAZ	=46N	+43B	−4N	=20B	+51N	=37B	+55N	+24B	−8N	5.5	42.5	47.0	26.50	2121	+15.4
23	Bolat, InayatFM	2085	KAZ	+84N	=59B	+20N	−1B	−43N	+54B	+52N	−9B	+47N	5.5	41.0	44.0	24.00	2084	+0.8
24	Amirali, Abzal	2111	KAZ	=49B	=53N	+69B	−33N	+40B	+41N	=11B	−22N	+46B	5.5	40.0	43.5	25.50	2048	-13.2
25	Plotnikov, BorisFM	2227	RUS	−45B	+71N	+81B	+38N	+31B	−13N	=12B	−19N	+44B	5.5	40.0	43.0	24.00	2155	-28.8
26	Tokbayev, Anuar	2001	KAZ	−5B	=92N	−43B	+56N	+46B	+59N	=35B	+48B	=21N	5.5	39.0	41.0	23.75	2114	+49.4
27	Abdsattar, AlisherCM	2030	KAZ	=53B	=49N	+70B	−7B	+86N	−11N	+78B	+40N	=20N	5.5	38.5	41.0	21.25	2035	+4.6
28	Oskenbay, Alisher	2087	KAZ	+89B	+90N	−11B	+68N	−12B	−20N	+74B	=33N	+49B	5.5	36.5	38.5	18.50	2059	-8.8
29	Suslov, DmitriiFM	2225	FID	−16N	=63B	F	=87N	+89B	=69N	+59B	+55B	+43N	5.5	31.5	31.5	20.50	2060	-54.4
30	Tangatov, Nurdaulet	2189	KAZ	+55N	+60B	=15N	+50B	=1N	−4B	−6N	−41B	+61N	5.0	44.0	48.0	23.50	2130	-14.0
31	Galymbek, AlikhanCM	2118	KAZ	+63B	+78N	+5B	−10N	−25N	+16B	−7N	−20B	+66N	5.0	44.0	47.0	23.50	2125	+3.8
32	Fedorov, Grigory	2058	RUS	+70B	=1B	+37N	−4B	+59N	−5N	+68B	−17N	=33B	5.0	43.5	47.0	22.00	2170	+24.6
33	Kabylbek, YedilCM	1994	KAZ	−1N	+73B	+85N	+24B	=8N	−21B	=37N	=28B	=32N	5.0	43.5	46.0	22.50	2130	+59.7
34	Ainakul, Mukhtar	2008	KAZ	+77N	+9B	−1N	−8B	+85N	−7B	+70N	=37B	=39N	5.0	43.5	46.0	21.00	2121	+47.5
35	Yessengali, Adizhan	2090	KAZ	=43N	+46B	−59N	+47B	=14N	=55B	=26N	−16B	+62N	5.0	39.5	43.5	23.25	1985	-47.1
36	Bayantas, AsmanFM	2142	KAZ	=20N	+47B	−50N	=62B	+76N	+60B	=44N	=14B	−16N	5.0	39.0	42.5	22.00	2017	-56.2
37	Zhauynbay AldiyarFM	2233	KAZ	+81N	=50B	−32B	+61N	=41B	=22N	=33B	=34N	=38N	5.0	39.0	42.0	22.00	2062	-39.2
38	Baturin-Vinogradov, MiroslavCM	2046	FID	+82B	−3N	+84B	−25B	=54N	+45N	−9B	+71N	=37B	5.0	39.0	42.0	18.75	2101	+15.0
39	Zhauynbay, AlimzhanFM	2133	KAZ	−59N	+54B	+80N	−14B	−16N	+51B	=47B	+68N	=34B	5.0	38.0	41.0	20.25	2002	-62.4
40	Barmagambetova, Sakypzhamal	1903	KAZ	+57N	−15B	=64N	=48B	−24N	+79B	+60N	−27B	+72N	5.0	37.5	40.5	19.25	2114	+49.6
41	Tursunali , Bekarys	2007	KAZ	=87N	+83B	+48N	−15B	=37N	−24B	+90B	+30N	−13B	5.0	37.5	39.5	18.25	2089	+19.2
42	Yerzhanuly Yernur	1915	KAZ	−15N	−7B	+95B	=45N	=61B	−58N	+65N	+88B	+60N	5.0	35.5	35.5	14.75	2084	+74.9
43	Primbetov, NurassylCM	1906	KAZ	=35B	−22N	+26N	+9B	+23B	−15N	−17B	+45N	−29B	4.5	45.5	50.0	24.50	2110	+90.8
44	Kleschevnikov, ArsenyCM	2024	FID	+86N	=4B	=8N	=21B	+62N	=6B	=36B	−11N	−25N	4.5	45.5	48.0	21.50	2098	+34.2
45	Saidulla, Bakdaulet	1969	KAZ	+25N	−6B	−7N	=42B	+83N	−38B	+54N	−43B	+70N	4.5	41.0	44.0	19.00	2001	+7.0
46	Amanzhol, KhanzadaWFM	1896	KAZ	=22B	−35N	+65B	−17N	−26N	+83B	+88N	+52B	−24N	4.5	39.0	41.5	16.75	2030	+61.2
47	Altynbek, AiaruWFM	1977	KAZ	=17B	−36N	+92B	−35N	+87B	=48B	=39N	+53N	−23B	4.5	38.0	40.0	16.75	2043	+28.9
48	Kabinazar, Nurmukhammed	2169	KAZ	=75B	+56N	−41B	=40N	=68B	=47N	+61B	−26N	=51B	4.5	36.5	40.0	19.00	1961	-90.1
49	Khairoshev, Nurbek	1919	KAZ	=24N	=27B	−79N	=57B	−64N	+87N	+72B	+50B	−28N	4.5	36.0	38.5	18.25	2028	+26.2
50	Tulegenov, Amir	2023	KAZ	+91B	=37N	+36B	−30N	−17B	=78N	=71B	−49N	+69B	4.5	35.5	37.5	16.25	2045	+8.4
51	Anetov, AmirzhanCM	1920	KAZ	−21B	−12N	+93B	+91N	−22B	−39N	+79N	+64B	=48N	4.5	35.5	37.5	13.25	2048	+53.3
52	Rashit, Alikhan	1979	KAZ	−13N	−67B	=73N	+82B	+66N	+62B	−23B	−46N	+68B	4.5	35.0	38.0	16.25	1944	-9.8
53	Kuanyshev, Miras	1813	KAZ	=27N	=24B	−14N	=69N	=74B	=88B	+76N	−47B	+79N	4.5	35.0	37.5	16.75	2010	+85.1
54	Boran, Shyngys	1917	KAZ	−19B	−39N	+94B	+81N	=38B	−23N	−45B	+85N	+74B	4.5	34.5	35.0	12.00	1984	+15.6
55	Zaitsev, Ilya	1948	KAZ	−30B	=91N	=87B	+67N	+79B	=35N	−22B	−29N	+71B	4.5	34.0	36.0	15.25	1996	+19.8
56	Novikau, Mikita	1955	BLR	=8N	−48B	−66N	−26B	+92N	+82B	=73N	+90B	=57N	4.5	33.5	35.5	14.25	1968	+4.8
57	Syzdyk, SamirCM	2075	KAZ	−40B	+89N	−68B	=49N	=69B	−71N	+85B	+75N	=56B	4.5	30.5	33.0	14.75	1913	-72.2
58	Akhmet, SuleymanCM	2049	KAZ	+66N	+2B	−6N	−13B	−20N	+42B	−16N	=62B	=59N	4.0	44.0	48.0	20.00	1979	-32.7
59	Kim, KristinaWCM	1930	KAZ	+39B	=23N	+35B	−5N	−32B	−26B	−29N	+89N	=58B	4.0	42.0	44.5	17.25	2055	+27.0
60	Dauren, DarmenCM	2008	KAZ	+94B	−30N	+67B	−12N	+90B	−36N	−40B	+63N	−42B	4.0	36.0	36.5	10.50	1918	-41.6
61	Utemisov, Damir	2004	KAZ	=83N	+87B	−2N	−37B	=42N	+86B	−48N	+73B	−30B	4.0	35.5	38.0	12.50	1964	-9.8
62	Ulan, RizatCM	1852	KAZ	+95B	−18N	+72B	=36N	−44B	−52N	+69B	=58N	−35B	4.0	35.5	35.5	11.50	1999	+65.0
63	Amankos, Zhanbolat	1921	KAZ	−31N	=29N	=91B	=83B	−9N	+77B	=64N	−60B	+80N	4.0	34.5	36.5	13.75	1947	+8.4
64	Tabermakova, LeilaWFM	2042	FID	+93B	−10N	=40B	−78N	+49B	−68N	=63B	−51N	+82B	4.0	33.5	35.5	14.00	1906	-62.7
65	Ayapov, Alimzhan	1987	KAZ	−2N	=66B	−46N	=73B	−67N	+84N	−42B	+86B	+90N	4.0	33.5	35.5	11.25	1863	-30.6
66	Japparbekova, Malika	1863	KAZ	−58B	=65N	+56B	−72N	−52B	=75N	+81B	+78N	−31B	4.0	32.0	35.0	14.25	1957	+42.9
67	Zarkym, Ailin	1816	KAZ	−72B	+52N	−60N	−55B	+65B	−74N	−75B	+81N	+78B	4.0	30.5	33.5	14.50	1936	+58.0
68	Qusaiyn, Altynbek	1943	KAZ	−11B	+94N	+57N	−28B	=48N	+64B	−32N	−39B	−52N	3.5	39.0	39.5	11.25	1977	+8.5
69	Zhandos, Akarys	1948	KAZ	−9N	+77B	−24N	=53B	=57N	=29B	−62N	+76B	−50N	3.5	38.5	42.0	14.25	1926	-12.9
70	Kozlova, Olga	1871	RUS	−32N	+88B	−27N	+80B	+72B	−9N	−34B	=74N	−45B	3.5	36.5	39.0	10.75	1943	+30.4
71	Fefelova, EkaterinaWFM	1932	RUS	−6N	−25B	+77N	−85B	+94N	+57B	=50N	−38B	−55N	3.5	36.5	37.0	10.75	1900	-17.5
72	Bigabylov, ZhubanFM	2031	KAZ	+67N	−13B	−62N	+66B	−70N	=73B	−49N	+77B	−40B	3.5	34.5	38.0	13.25	1832	-48.6
73	Madi, AidanaWFM	1899	KAZ	−18B	−33N	=52B	=65N	+81B	=72N	=56B	−61N	=75B	3.5	34.5	37.5	13.00	1913	+6.0
74	Danilov, Dmitryi	1977	KAZ	−4N	−86B	=82N	+92B	=53N	+67B	−28N	=70B	−54N	3.5	34.0	36.0	11.50	1841	-67.2
75	Zharylgasov, Ayat	1940	KAZ	=48N	−8B	=83N	−86B	=77N	=66B	+67N	−57B	=73N	3.5	33.5	36.0	13.25	1852	-23.0
76	Bekentayev, Uran	1979	KAZ	−10B	+82N	−90B	+89N	−36B	=85N	−53B	−69N	+93B	3.5	29.0	31.0	8.75	1844	-34.0
77	Duabek, Abylaikhan	1798	KAZ	−34B	−69N	−71B	+95N	=75B	−63N	+87B	−72N	+89B	3.5	28.0	28.0	6.75	1865	+30.8
78	Tleuov, Akhan	1968	KAZ	+7N	−31B	=9N	+64B	−21N	=50B	−27N	−66B	−67N	3.0	41.5	45.5	16.00	1920	-22.8
79	Barmagambetov, MeyrzhanCM	2074	KAZ	+92B	−5N	+49B	−2B	−55N	−40N	−51B	+91N	−53B	3.0	38.5	40.5	8.50	1859	-51.6
80	Baisalbekov, Maksat	1966	KAZ	+12B	−19N	−39B	−70N	+91B	−90N	=89B	=82N	−63B	3.0	31.5	33.5	10.75	1826	-65.4
81	Baimurzin, AitkazyIM	1972	KAZ	−37B	+93N	−25N	−54B	−73N	+94B	−66N	−67B	+92N	3.0	30.5	31.0	4.50	1816	-38.8
82	Tyulyupov, Kumar	1853	KAZ	−38N	−76B	=74B	−52N	+95B	−56N	+86N	=80B	−64N	3.0	30.5	30.5	5.75	1852	-0.2
83	Nurakyn, Suleiman	1773	KAZ	=61B	−41N	=75B	=63N	−45B	−46N	=91B	−93N	+94N	3.0	29.5	30.0	7.25	1781	+1.5
84	Sivirin, Viktor	1904	KAZ	−23B	+95N	−38N	−16B	−88N	−65B	−93N	+94N	+91B	3.0	27.5	27.5	2.50	1824	-19.0
85	Khassenov, Miras	1775	KAZ	−14N	F	−33B	+71N	−34B	=76B	−57N	−54B	+88N	2.5	34.5	34.5	7.75	1846	+27.2
86	Ospanova, Adelya	1804	KAZ	−44B	+74N	−17B	+75N	−27B	−61N	−82B	−65N	=87B	2.5	34.0	36.5	8.25	1812	-2.4
87	Alemanova, YasminaWCM	1782	KAZ	=41B	−61N	=55N	=29B	−47N	−49B	−77N	=92B	=86N	2.5	34.0	36.0	9.75	1782	-6.0
88	Litvinov, Anton	1989	RUS	−3B	−70N	−89B	+93N	+84B	=53N	−46B	−42N	−85B	2.5	32.0	34.0	7.25	1746	-59.8
89	Tynyshtyk, DianaWFM	1905	KAZ	−28N	−57B	+88N	−76B	−29N	+93B	=80N	−59B	−77N	2.5	32.0	34.0	6.00	1819	-44.0
90	Seilbay, Timur	1759	KAZ	F	−28B	+76N	−19B	−60N	+80B	−41N	−56N	−65B	2.0	35.0	35.0	6.50	1819	+18.8
91	Diaskyzy, Daliya	1801	KAZ	−50N	=55B	=63N	−51B	−80N	=92B	=83N	−79B	−84N	2.0	29.5	31.5	6.75	1716	-34.2
92	Mamakova, Aknur	1898	KAZ	−79N	=26B	−47N	−74N	−56B	=91N	=94B	=87N	−81B	2.0	28.5	29.0	5.25	1706	-82.1
93	Kambar , Ersultan	1821	KAZ	−64N	−81B	−51N	−88B	F	−89N	+84B	+83B	−76N	2.0	26.0	26.0	6.00	1742	-32.4
94	Kalzhanov, Ermukhan	1797	KAZ	−60N	−68B	−54N	F	−71B	−81N	=92N	−84B	−83B	0.5	26.5	26.5	1.00	1474	-44.0
95	Sultanbek, Beibars	2044	KAZ	−62N	−84B	−42N	−77B	−82N	F	F	F	F	0.0	18.5	18.5	0.00	1063	-146.8

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Zharas, AldiyarCMKAZ
+119.7
6.0 pts · #17
2Tanikin, IsabekKAZ
+106.0
6.0 pts · #11
3Primbetov, NurassylCMKAZ
+90.8
4.5 pts · #50

Top rating losers

1Sultanbek, BeibarsKAZ
-146.8
0.0 pts · #95
2Kabinazar, NurmukhammedKAZ
-90.1
4.5 pts · #45
3Mamakova, AknurKAZ
-82.1
2.0 pts · #93

Biggest upsets

R2+340 Elo gap
Kolosovskiy, Anton1933 beat FMMoisseyenko, Ilya2273
R4+277 Elo gap
CMPrimbetov, Nurassyl1906 beat Beristenov, Kair2183
R6+269 Elo gap
Tanikin, Isabek2004 beat FMMoisseyenko, Ilya2273