27th Asian Youth Chess Championships 2025 - U08

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72 players participated in this 9-round tournament, held from 22 Nov 2025 to 29 Nov 2025 in Bangkok, Thailand. 1 titled players from 8 federations. Top 10 Elo average was 1737, and top seed was Kiasha Mahboobi (🇮🇷 IRI, 1869).

Kiasha Mahboobi (🇮🇷 IRI, 1869) won with 7.0/9, ahead of Tamizh Amudhan S (7.0) and Mahdiar Janbarari (7.0). Mahboobi won on tie-break after catching the field in the final round.

The biggest upset came in round 5: Neithal D Ansera (1533) beat Kiasha Mahboobi (1869), a +336-point gap.

Location

🇹🇭Bangkok, Thailand

Dates

22 Nov 2025 → 29 Nov 2025

Time control

Standard: 90 minutes with 30 second increment from move 1

System

Swiss · 9 rounds

Top seed

🇮🇷Kiasha Mahboobi1869

Avg top 10

1,737

Participants

Titled players · 1

CM×1

Federations · 8 represented

🇻🇳Vietnam×8

🇸🇬Singapore×6

🇹🇭Thailand×6

🇮🇳India×6

🇰🇿Kazakhstan×5

🇲🇳Mongolia×4

🇮🇷Iran×4

🇰🇷South Korea×3

Top 3

🥇
Kiasha Mahboobi
🇮🇷IRI·1869
7.0pts·1872perf+4.4
🥈
CMTamizh Amudhan S
🇮🇳IND·1714
7.0pts·1879perf+67.6
🥉
Mahdiar Janbarari
🇮🇷IRI·1721
7.0pts·1851perf+57.6

How it unfolded

Top 6 · 9 rounds

Tight race until R9; 4 players tied at 7.0/9, decided on Buchholz. Title race narrowed from 3 co-leaders at R4 to 4 at the finish.

Co-leaders

Mahboobi7Tamizh Amudhan7Janbarari7Constante7Khasanchin6.5Huynh Thien6.5

R9 · TIEBREAK CLUSTER

4 players finish on 7.0/9. Mahboobi takes the title on Buchholz Cut1 (49.5).

R7 · HEAD-TO-HEAD · WINNER VS 2ND

Kiasha Mahboobi beat CM Tamizh Amudhan S (Black).

WIN STREAKS · 3 top finishers

Kiasha Mahboobi 4 wins (R1–R4)CM Tamizh Amudhan S 6 wins (R1–R6)Mahdiar Janbarari 3 wins (R6–R8)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1Kiasha Mahboobi	*	1	0	1
2CMTamizh Amudhan S	0	*	1	0
3Mahdiar Janbarari	1	0	*	—
4Marius Constante	0	1	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	R7	R8	R9	Pts	Bu C1	Bu	SB	Perf	Δ
1	Mahboobi, Kiasha	1869	IRI	+31N	+20B	+10N	+4B	−24N	+8B	+2N	−3B	+13N	7.0	49.5	54.0	42.00	1872	+4.4
2	Tamizh Amudhan SCM	1714	IND	+55B	+25N	+17B	+9N	+3B	+24N	−1B	+6N	−4B	7.0	49.0	52.5	38.50	1879	+67.6
3	Janbarari, Mahdiar	1721	IRI	+56B	+23N	=5B	+14N	−2N	+31B	+9B	+1N	=7B	7.0	48.5	52.0	38.50	1851	+57.6
4	Constante, Marius	1681	PHI	+29B	+35N	+44B	−1N	+27B	−11N	+16B	+24N	+2N	7.0	45.0	49.0	36.00	1818	+57.2
5	Vu Thanh An	1609	VIE	+38B	+36N	=3N	+26B	=8N	=6B	−12N	+22B	+19B	6.5	46.0	50.5	34.75	1805	+89.2
6	Khasanchin, Damir	1776	FID	+59B	+65N	−9B	+32N	+7B	=5N	+11B	−2B	+14N	6.5	45.0	47.5	31.25	1786	+6.0
7	Huynh Thien An	1634	VIE	+50B	+60N	−11B	+35N	−6N	+37B	+26N	+12B	=3N	6.5	43.5	46.5	30.50	1762	+62.8
8	Omurzakov, Altair	1687	KAZ	+47B	+16N	=14B	+21N	=5B	−1N	+15B	=10N	=9B	6.0	47.5	51.5	32.50	1752	+31.2
9	Chong, Jake	1652	HKG	+40N	+46B	+6N	−2B	=13N	+10B	−3N	+33B	=8N	6.0	47.5	51.5	31.50	1776	+59.2
10	Takkshanth Anand	1661	IND	+30B	+34N	−1B	+16N	+15B	−9N	+17B	=8B	=11N	6.0	46.5	51.0	32.00	1750	+30.4
11	Kalinin, Bogdan	1724	FID	+49N	+32B	+7N	−24B	+45N	+4B	−6N	=13B	=10B	6.0	45.5	49.5	32.00	1758	+15.2
12	Rakhymtay, Sanzhar	1682	KAZ	=33N	−18B	+36B	+58N	=14B	+28N	+5B	−7N	+24B	6.0	43.0	46.5	29.50	1604	-30.0
13	Bakhytzhan, Abilmansur	1734	KAZ	−34B	+50N	+59B	+46N	=9B	+19N	+24B	=11N	−1B	6.0	42.0	45.0	27.50	1738	+1.6
14	Erkinboev, Sayfuddin	1567	UZB	+43B	+39N	=8N	−3B	=12N	=20B	+25N	+27B	−6B	5.5	45.5	50.0	27.75	1711	+51.6
15	Jayasuriya, Sayuru Lonindu	1513	SRI	−21B	+43N	+25B	+65N	−10N	+32B	−8N	+26B	=16B	5.5	42.0	44.5	24.25	1654	+57.2
16	Saifiev, Murodali	1536	TJK	+69N	−8B	+40N	−10B	+53N	+45B	−4N	+41B	=15N	5.5	41.5	43.5	21.75	1575	+14.8
17	Hoang Gia Bao	1601	VIE	+41N	+57B	−2N	=31B	=26N	+34B	−10N	+48B	=18N	5.5	41.0	44.5	24.00	1562	-14.4
18	Nguyen Minh Khang	1517	VIE	=19B	+12N	−21B	=28N	−32B	+50N	+45N	+39B	=17B	5.5	40.5	44.5	26.50	1696	+87.6
19	Nguyen Tran Gia Vuong	1717	VIE	=18N	−44B	+47N	+51B	+37N	−13B	+31N	+20B	−5N	5.5	40.5	44.5	25.25	1703	-5.6
20	Prayank Gaonkar	1596	IND	+70B	−1N	+56B	=33N	=22B	=14N	+44B	−19N	+38B	5.5	40.0	42.0	21.75	1627	+10.4
21	Yunker, German	1689	FID	+15N	=26B	+18N	−8B	−31N	+49B	−33N	+46B	+32N	5.5	39.5	43.5	26.00	1634	-26.4
22	Mazhitov, Madi	1743	KAZ	+37N	=45B	−24N	+49B	=20N	=25B	+42N	−5N	+35B	5.5	39.5	43.5	24.75	1630	-50.4
23	Jin, Yi	1574	SGP	+66N	−3B	+55N	−37B	=33N	−47B	+49N	+36B	+34N	5.5	36.5	39.0	21.25	1552	-7.6
24	Neithal D Ansera	1533	IND	+52B	+27N	+22B	+11N	+1B	−2B	−13N	−4B	−12N	5.0	49.5	53.5	27.50	1724	+88.0
25	Hosseini, Seyed Maahyar	1572	IRI	+48N	−2B	−15N	+38B	+29N	=22N	−14B	+47B	=27N	5.0	42.0	46.0	22.75	1578	-3.6
26	Aaradhyo Guin	1572	IND	+71B	=21N	+58B	−5N	=17B	+52N	−7B	−15N	+33B	5.0	41.5	43.5	19.50	1464	-25.2
27	Azaan, Mahmood	1619	BAN	+61N	−24B	+34N	+42B	−4N	=33B	+36N	−14N	=25B	5.0	40.5	43.5	21.25	1552	-29.2
28	Suyundukov, Ansar	1545	KAZ	−44N	+61B	=51N	=18B	+30N	−12B	−41N	+50B	+48N	5.0	37.0	40.0	20.75	1563	+6.0
29	Ruengjirachuporn, Chantat	1491	THA	−4N	+69B	−32N	+57B	−25B	−38N	+62B	+53N	+44B	5.0	35.5	37.5	16.50	768	-64.0
30	Cheng, Shu-Tsai	1481	TPE	−10N	+54B	−46N	+69B	−28B	−39N	+60B	+52N	+45B	5.0	34.5	36.5	17.00	1366	-34.4
31	Mirkhatami, Seyed Arsam	1528	IRI	−1B	+53N	+60B	=17N	+21B	−3N	−19B	=44N	=41B	4.5	43.0	46.0	19.50	1543	-2.0
32	Ng, Yuval	1574	SGP	+72B	−11N	+29B	−6B	+18N	−15N	+40B	=38N	−21B	4.5	43.0	43.0	17.25	1537	-20.4
33	Devansh Darpan Patel	1493	IND	=12B	+68N	=45N	=20B	=23B	=27N	+21B	−9N	−26N	4.5	42.5	45.0	21.00	1622	+55.6
34	Tay, Cameron	1526	SGP	+13N	−10B	−27B	+43N	+39B	−17N	+52B	=35N	−23B	4.5	41.5	45.5	21.25	1530	-0.4
35	Vishwakarthi, Vikram	1535	SGP	+54N	−4B	+57N	−7B	=36N	=41B	+53N	=34B	−22N	4.5	40.5	44.0	18.25	1354	-44.0
36	Sod, Munkh-Orgil	0	MGL	+42N	−5B	−12N	+40B	=35B	+59N	−27B	−23N	+63B	4.5	39.5	42.5	17.25	1560	0.0
37	Mohd Shahrul Annuar, Muhd Aariz Daniel	1526	MAS	−22B	+72N	+39B	+23N	−19B	−7N	−38B	+61N	=43B	4.5	39.5	39.5	15.25	1561	+13.7
38	Choi, Jungwoon	1411	KOR	−5N	+67B	−42N	−25N	+63B	+29B	+37N	=32B	−20N	4.5	38.5	41.0	17.25	1549	0.0
39	Pham Xuan An	1675	VIE	+51N	−14B	−37N	+48B	−34N	+30B	+47N	−18N	=40B	4.5	37.5	41.5	19.25	1473	-87.6
40	Dabaev, Ermek	1475	KGZ	−9B	+52N	−16B	−36N	+43B	+55N	−32N	+54B	=39N	4.5	37.5	41.0	18.25	1449	-8.0
41	Tang Duy Khanh	1405	VIE	−17B	−59N	+62B	+56N	=46B	=35N	+28B	−16N	=31N	4.5	35.5	38.5	18.00	1500	+38.8
42	Khasanov, Abdulaziz	1535	UZB	−36B	+70N	+38B	−27N	=44B	+51N	−22B	−45N	+57B	4.5	35.0	37.0	16.00	1500	-1.6
43	Koe, Ruihe Joshua	0	SGP	−14N	−15B	+61N	−34B	−40N	+64B	+59B	+67N	=37N	4.5	33.5	36.0	13.75	1485	0.0
44	Odmagnai Battulga	0	MGL	+28B	+19N	−4N	−45B	=42N	+46B	−20N	=31B	−29N	4.0	41.0	45.0	19.00	1535	-16.8
45	Shi, Hankun(SH)	1580	CHN	+53B	=22N	=33B	+44N	−11B	−16N	−18B	+42B	−30N	4.0	40.5	44.5	17.50	1419	-60.8
46	Jyothi Nikhil, Neev	1548	AUS	+62B	−9N	+30B	−13B	=41N	−44N	+58B	−21N	=47B	4.0	38.5	41.5	15.75	1459	-28.8
47	Nguyen Viet Hoang Phuc	1498	VIE	−8N	=48B	−19B	+68N	+60B	+23N	−39B	−25N	=46N	4.0	37.5	40.0	15.00	1532	+10.0
48	Jargalbayar Uuganbayar	0	MGL	−25B	=47N	+68B	−39N	=55B	+56N	+51B	−17N	−28B	4.0	35.0	37.5	13.75	1526	0.0
49	Mohamed AlMaeeni	1525	UAE	−11B	+71N	=65B	−22N	+58B	−21N	−23B	+66N	=51N	4.0	35.0	37.0	11.25	1362	-52.0
50	Yang, Zhiyi	1460	CHN	−7N	−13B	+71N	−52B	+69N	−18B	+65B	−28N	+60B	4.0	34.5	36.5	9.50	1361	-23.6
51	Alisherov, Altai	1484	KGZ	−39B	+62N	=28B	−19N	+65B	−42B	−48N	+55N	=49B	4.0	34.0	36.5	13.50	1539	+17.6
52	Zan Lin Htut	0	MYA	−24N	−40B	+64N	+50N	+59B	−26B	−34N	−30B	+65N	4.0	34.0	36.5	12.50	1428	0.0
53	Baidar Bayasgalan	0	MGL	−45N	−31B	+54N	+67B	−16B	+66N	−35B	−29B	+59N	4.0	33.0	35.5	12.00	1376	0.0
54	Tanjung, Arzanka Einer	0	INA	−35B	−30N	−53B	=70N	+68B	=65N	+56B	−40N	+61B	4.0	29.5	31.5	11.25	1544	0.0
55	Lai, Yun-Cheng	1516	TPE	−2N	+66B	−23B	=60N	=48N	−40B	=57N	−51B	+67B	3.5	34.0	36.5	10.25	1320	-56.4
56	Ruengjirachuporn, Nantat	1524	THA	−3N	+64B	−20N	−41B	+57N	−48B	−54N	=65N	+66B	3.5	34.0	36.5	10.25	1254	-49.2
57	Koraviyotin, Archawin	0	THA	+63B	−17N	−35B	−29N	−56B	+70N	=55B	+58N	−42N	3.5	33.0	35.0	10.25	1303	0.0
58	Guosaimiuer	0	CHN	=68B	+63N	−26N	−12B	−49N	+67B	−46N	−57B	+71N	3.5	30.5	32.5	8.75	1479	0.0
59	Shin, Hyeonseo	1528	KOR	−6N	+41B	−13N	+66B	−52N	−36B	−43N	+62B	−53B	3.0	37.0	39.5	10.00	1517	-1.6
60	Pradhan, Shubhanga	0	NEP	+67N	−7B	−31N	=55B	−47N	=61B	−30N	+68B	−50N	3.0	33.0	35.5	8.25	1419	0.0
61	Yarkin, Ivan	1428	RUS	−27B	−28N	−43B	+72N	=62B	=60N	+63B	−37B	−54N	3.0	32.0	32.0	6.00	1363	-32.8
62	Loh, Asher	0	SGP	−46N	−51B	−41N	+64B	=61N	=71B	−29N	−59N	+69B	3.0	28.5	30.5	7.50	1094	0.0
63	Damraks, Teeravee	1549	THA	−57N	−58B	−66N	+71B	−38N	+69B	−61N	+64B	−36N	3.0	26.5	28.5	7.00	676	-46.8
64	Aung Khant	0	MYA	−65B	−56N	−52B	−62N	+70B	−43N	+69B	−63N	+72N	3.0	24.5	24.5	4.00	749	0.0
65	Phanthajarunithi, Napat	1586	THA	+64N	−6B	=49N	−15B	−51N	=54B	−50N	=56B	−52B	2.5	35.5	38.5	8.75	1281	-90.4
66	Choi, Jiwan	0	KOR	−23B	−55N	+63B	−59N	=67N	−53B	+71N	−49B	−56N	2.5	29.0	31.0	6.25	1311	0.0
67	Al-Mahasna, Abdulaziz	1542	QAT	−60B	−38N	+72B	−53N	=66B	−58N	+68B	−43B	−55N	2.5	28.0	28.0	3.75	1419	-20.0
68	Myint Mho Thurein	1573	MYA	=58N	−33B	−48N	−47B	−54N	+72B	−67N	−60N	+70B	2.5	27.5	27.5	3.75	716	-82.8
69	Puthidawat, Nakhun	0	THA	−16B	−29N	+70B	−30N	−50B	−63N	−64N	+72B	−62N	2.0	30.5	30.5	2.00	708	0.0
70	FIDE 6223699	0	—	−20N	−42B	−69N	=54B	−64N	−57B	+72N	=71B	−68N	2.0	27.0	27.0	3.00	783	0.0
71	Hori, Lihito	0	JPN	−26N	−49B	−50B	−63N	+72B	=62N	−66B	=70N	−58B	2.0	27.0	27.0	2.50	723	0.0
72	FIDE 14019965	0	—	−32N	−37B	−67N	−61B	−71N	−68N	−70B	−69N	−64B	0.0	24.0	26.0	0.00	763	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Vu Thanh AnVIE
+89.2
6.5 pts · #14
2Neithal D AnseraIND
+88.0
5.0 pts · #23
3Nguyen Minh KhangVIE
+87.6
5.5 pts · #13

Top rating losers

1Phanthajarunithi, NapatTHA
-90.4
2.5 pts · #58
2Pham Xuan AnVIE
-87.6
4.5 pts · #36
3Myint Mho ThureinMYA
-82.8
2.5 pts · #70

Biggest upsets

R5+336 Elo gap
Neithal D Ansera1533 beat Mahboobi, Kiasha1869
R3+210 Elo gap
Neithal D Ansera1533 beat Mazhitov, Madi1743
R1+208 Elo gap
Tay, Cameron1526 beat Bakhytzhan, Abilmansur1734