40th National Age Group Chess Championships Under 9

Open SwissStandard

105 players participated in this 9-round tournament, held from 09 Dec 2025 to 13 Dec 2025 in Singapore, Singapore. 6 federations represented. Top 10 Elo average was 1627, and top seed was Yu Heng Lucas John Wee (🇸🇬 SGP, 1797).

Yu Heng Lucas John Wee (🇸🇬 SGP, 1797) won with 8.5/9, ahead of Si Xu Shane Yeo (7.5) and Elijah Johan Banguilan (7.0). Wee won solo starting round 6.

The biggest upset came in round 3: Kar Yan Rebekah Lee (1411) beat Tsao Kyle Oon (1686), a +275-point gap.

Location

🇸🇬Singapore, Singapore

Dates

09 Dec 2025 → 13 Dec 2025

Time control

Standard: 90 minutes with 30 second increment from move 1

System

Swiss · 9 rounds

Top seed

🇸🇬Yu Heng Lucas John Wee1797

Avg top 10

1,627

Participants

105

Federations · 6 represented

🇸🇬Singapore×55

🇮🇳India×2

🇲🇾Malaysia×1

FIDE (no federation)×1

🇵🇭Philippines×1

🇲🇲Myanmar×1

Top 3

🥇
Yu Heng Lucas John Wee
🇸🇬SGP·1797
8.5pts·1948perf+30.0
🥈
Si Xu Shane Yeo
🇸🇬SGP·1491
7.5pts·1729perf+49.6
🥉
Elijah Johan Banguilan
🇵🇭PHI·1575
7.0pts·1675perf+26.8

How it unfolded

Top 6 · 9 rounds

Yu Heng Lucas John Wee led from R6; +1.0-point edge over the runner-up. Title race converged from 9 co-leaders at R4 to 1 by R6.

Co-leaders

Wee8.5Yeo7.5Zhang7Ong7Banguilan7Lee7

R6–R9 · LEAD HELD

Yu Heng Lucas John Wee never relinquished the lead after R6; final gap +1.0 over the runner-up.

WIN STREAKS · 3 top finishers

Yu Heng Lucas John Wee 7 wins (R1–R7)Si Xu Shane Yeo 3+3 wins (R1–R3, R5–R7)Yunyi Zhang 4 wins (R1–R4)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1Yu Heng Lucas John Wee	*	—	—	—
2Si Xu Shane Yeo	—	*	—	½
3Yunyi Zhang	—	—	*	—
4Qi Yi Ong	—	½	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	R7	R8	R9	Pts	Bu C1	Bu	SB	Perf	Δ
1	Wee, Yu Heng Lucas John	1797	SGP	+27N	+77B	+33N	+15B	+7N	+32B	+19N	=3B	+8N	8.5	50.5	54.5	51.00	1948	+30.0
2	Yeo, Si Xu Shane	1491	SGP	+43N	+84B	+50N	−3B	+27N	+63B	+32N	=4B	+13N	7.5	47.0	51.0	40.50	1729	+49.6
3	Banguilan, Elijah Johan	1575	PHI	+75B	+81N	+62B	+2N	=6B	=5N	+24B	=1N	=4N	7.0	51.5	55.5	40.75	1675	+26.8
4	Ong, Qi Yi	1741	SGP	+60B	+78N	+48B	+22N	=19B	=6N	+15B	=2N	=3B	7.0	50.0	54.0	40.25	1638	-29.2
5	Zhang, Yunyi	1465	SGP	+89N	+92B	+26N	+8B	=12N	=3B	+7N	−11B	+19N	7.0	49.5	52.5	39.25	1651	+58.4
6	Tay, Ye Zhe Eliot	1525	SGP	+79N	+63B	+85N	+10B	=3N	=4B	+26N	−8B	+11N	7.0	49.0	52.5	38.50	1583	+14.0
7	Ng, Yuval	1570	SGP	+103B	+38N	+73B	+45N	−1B	+10N	−5B	+48N	+24B	7.0	48.0	49.0	33.50	1454	-20.0
8	Ng, Jacob Euben	1558	SGP	+95B	+101N	+37B	−5N	+47B	+48N	+14B	+6N	−1B	7.0	47.5	49.5	34.00	1559	-0.8
9	Tay, Cameron	1490	SGP	+36B	+80N	+28B	−32N	−24B	+60N	+47B	+62N	+22B	7.0	43.5	47.5	36.00	1544	+5.6
10	Lee, Kar Yan Rebekah	1411	SGP	+?B	+?N	+17B	−6N	+53B	−7B	+42N	+32N	+37B	7.0	42.0	42.0	28.00	1586	0.0
11	Lim, Julian Jia Rui	1468	SGP	+57B	+52N	+88B	−19N	=28B	+36N	+23B	+5N	−6B	6.5	47.5	51.0	35.00	1376	-12.8
12	Lu, Bingyang	1475	SGP	+74B	+14N	=23B	+68N	=5B	−24N	+63B	+59N	=15B	6.5	46.0	50.0	34.25	1587	+17.6
13	Yeap, Jing Chen	1646	SGP	−38B	+100N	=36B	+30N	+70B	+25B	+34N	+50N	−2B	6.5	45.5	47.5	31.75	693	-28.4
14	Rajesh, Nathaniel	0	SGP	+93N	−12B	+102N	+56B	+18N	+20B	−8N	=33B	+44N	6.5	44.5	46.5	30.25	1496	+11.6
15	Tan, Yu Yang	1503	MAS	+100B	+96N	+91B	−1N	+37B	+46N	−4N	+27B	=12N	6.5	44.5	46.5	27.75	1398	-10.4
16	Maheshwari, Savya	1536	SGP	+104B	=30N	+64B	+87N	+23B	−19N	−38B	+26B	+34N	6.5	43.0	44.0	29.50	718	-21.2
17	Oon, Tsao Kyle	1686	SGP	+71N	+97B	−10N	+34B	=85N	+86B	=33N	=19B	+41N	6.5	41.0	43.5	29.00	1470	-21.6
18	Aarush Gaurav Tipnis	0	SGP	+?B	−23N	+74B	+57N	−14B	=41N	+?B	+40N	+35B	6.5	38.0	38.0	22.75	654	0.0
19	Yeo, Si Xun Shaun	1541	SGP	+55N	+83B	+46N	+11B	=4N	+16B	−1B	=17N	−5B	6.0	52.0	56.0	33.75	1615	+27.0
20	Cao, Bangting	1447	SGP	+29N	+59B	+25N	+21B	−32B	−14N	+31B	=35N	=50B	6.0	46.5	51.5	34.25	1397	-7.6
21	Pang, Jun Rui	1524	SGP	=61B	+65N	+30B	−20N	+40B	−38N	+36B	=23N	+52B	6.0	44.5	49.0	32.00	647	-25.2
22	Cheng, Lin Yi Nathan	1522	SGP	+42N	+94B	+47N	−4B	−63N	+53B	+76N	+46B	−9N	6.0	43.0	46.0	27.50	817	-29.6
23	Tan, Jing Xun Jayden	0	SGP	+?N	+18B	=12N	+?B	−16N	+85B	−11N	=21B	+46N	6.0	40.5	40.5	21.25	1417	0.0
24	Koe, Ruihe Joshua	0	SGP	−?N	+?B	+35N	+69B	+9N	+12B	−3N	+?B	−7N	6.0	37.5	37.5	23.50	1533	0.0
25	Zhang, Alaric You Wei	0	SGP	+66B	+?N	−20B	+78N	+?B	−13N	−46B	+63N	+55B	6.0	35.5	35.5	18.00	747	0.0
26	Wije Pradesh, Avnish	0	SGP	+?B	+?N	−5B	+?N	+51B	+45N	−6B	−16N	+47B	6.0	35.5	35.5	15.00	1305	0.0
27	Lee, Yu Xi Ansel	0	SGP	−1B	+?N	+?B	+64N	−2B	+?N	+45B	−15N	+?B	6.0	32.0	32.0	9.50	1470	0.0
28	FIDE 5859557	0	—	+?N	+?B	−9N	+?B	=11N	−34B	=39N	+80B	+?N	6.0	28.5	28.5	10.00	1282	0.0
29	Myra Kaushik	0	SGP	−20B	+?N	+?B	−62N	+73B	−?N	+91B	+51N	+48B	6.0	27.5	27.5	17.00	647	0.0
30	Muhammad Shafiq	0	SGP	+?N	=16B	−21N	−13B	+?N	+87B	=44N	+?B	+?B	6.0	27.5	27.5	9.25	1540	0.0
31	FIDE 5847966	0	—	−85N	−86B	+?N	+97B	+?N	+?B	−20N	+?B	+58N	6.0	20.5	20.5	7.50	647	0.0
32	Jin, Yi	1574	SGP	+70N	+58B	+51N	+9B	+20N	−1N	−2B	−10B	=42N	5.5	51.5	56.0	30.25	1557	-4.4
33	Foo, En Ze David	1419	SGP	+41N	+67B	−1B	+75N	+66B	=50N	=17B	=14N	F	5.5	45.0	45.0	27.50	1521	+10.4
34	Song, Boan	0	SGP	=65B	+61N	+?B	−17N	+?B	+28N	−13B	+66N	−16B	5.5	39.5	39.5	17.75	823	0.0
35	FIDE 5862205	0	—	+?B	−62N	−24B	+58B	+71N	+81N	+?B	=20B	−18N	5.5	36.5	36.5	16.50	1447	0.0
36	Low, Ee Kai	0	SGP	−9N	+?B	=13N	+?N	+44B	−11B	−21N	+?B	+69N	5.5	35.5	35.5	12.75	1471	0.0
37	Chong, Yu Xiang Julius	0	SGP	+?N	+?B	−8N	+?B	−15N	=39B	+68N	+72B	−10N	5.5	35.0	35.0	11.75	710	0.0
38	Liang, Yuchen	0	SGP	+13N	−7B	+?N	=44N	+?B	+21B	+16N	F	F	5.5	31.0	31.0	21.50	1615	0.0
39	Ning, Zirui	0	SGP	+?B	−45N	−?B	+?N	+91B	=37N	=28B	+73N	=62B	5.5	28.0	28.0	15.00	672	0.0
40	Quek, Zuo Xun Ethan	0	SGP	−?N	+76B	=86N	+?B	−21N	+65B	+85N	−18B	+?N	5.5	28.0	28.0	13.75	1488	0.0
41	Ng, Jing Qi Ashley	0	SGP	−33B	−?N	+?N	+?B	+56N	=18B	+?N	+?B	−17B	5.5	23.5	23.5	8.25	1389	0.0
42	Loh, Asher	0	SGP	−22B	−?N	+?B	+?N	+64B	+?N	−10B	+?N	=32B	5.5	23.0	23.0	7.25	1252	0.0
43	FIDE 5874580	0	—	−2B	−?N	+?N	=?B	−92N	+?B	+65N	+?B	+67B	5.5	19.5	19.5	9.00	693	0.0
44	Saung Wutt Hmone Oo	1577	MYA	−94N	+79B	+82N	=38B	−36N	+49N	=30B	+60N	−14B	5.0	41.5	44.5	23.75	654	-26.8
45	Lee, Chloe Ling En	1473	SGP	+99N	+39B	+69N	−7B	+94N	−26B	−27N	−55N	+64B	5.0	41.5	44.0	20.00	773	-14.4
46	FIDE 5874882	0	—	+?B	+?N	−19B	+?N	+49B	−15B	+25N	−22N	−23B	5.0	35.5	35.5	11.00	699	0.0
47	FIDE 5863619	0	—	+?B	+49N	−22B	+?N	−8N	+80B	−9N	+?B	−26N	5.0	35.0	35.0	9.00	722	0.0
48	FIDE 88106713	0	—	+?N	+?B	−4N	+99B	+59N	−8B	+?N	−7B	−29N	5.0	34.5	34.5	7.50	824	0.0
49	FIDE 8650624	0	—	+?N	−47B	+65N	+71B	−46N	−44B	+53N	−58B	+?N	5.0	34.0	34.0	14.00	776	0.0
50	Tay, Yi Zhe Edison	0	SGP	F	+?N	−2B	+91N	+62B	=33B	+?N	−13B	=20N	5.0	33.0	33.0	13.25	1417	0.0
51	FIDE 5854229	0	—	+?N	+?B	−32B	+?N	−26N	−55B	+101N	−29B	+75B	5.0	28.5	28.5	6.00	771	0.0
52	Saayeni Santosh	0	IND	+?N	−11B	+97N	−85B	−76N	+56B	+?N	+?B	−21N	5.0	27.5	27.5	7.50	700	0.0
53	FIDE 5868190	0	—	−54N	+?B	+?N	+?B	−10N	−22N	−49B	+82B	+?N	5.0	27.0	27.0	4.00	716	0.0
54	FIDE 5865034	0	—	+53B	−91N	−75B	+90N	+95B	=66N	−?B	+97N	=?B	5.0	25.5	25.5	16.25	688	0.0
55	FIDE 5852897	0	—	−19B	+?N	−?B	+?N	+88B	+51N	−?N	+45B	−25N	5.0	25.5	25.5	13.50	1289	0.0
56	FIDE 5856981	0	—	+?B	−64N	+?B	−14N	−41B	−52N	+?B	+?N	+74B	5.0	25.5	25.5	4.00	654	0.0
57	FIDE 5881650	0	—	−11N	+?B	+?N	−18B	−?N	+93B	−73B	+91N	+?B	5.0	23.0	23.0	6.00	655	0.0
58	FIDE 5857597	0	—	+?B	−32N	−?B	−35N	+?B	+?N	+?B	+49N	−31B	5.0	22.0	22.0	5.00	771	0.0
59	FIDE 5858836	0	—	+?B	−20N	+?B	+73N	−48B	+?N	+?B	−12B	−?N	5.0	21.5	21.5	4.00	658	0.0
60	Lee, Yu Zheng Cayson	0	SGP	−4N	+?B	−?N	+?B	+?N	−9B	+?N	−44B	+?B	5.0	19.0	19.0	0.00	803	0.0
61	Liu, Yicheng	0	SGP	=21N	−34B	+?N	+92B	−?N	=?N	+?B	−?N	+73B	5.0	18.5	18.5	10.00	1215	0.0
62	Anishka Biyani	0	IND	+?N	+35B	−3N	+29B	−50N	F	+?B	−9B	=39N	4.5	39.0	39.0	14.25	734	0.0
63	Lee, Chen Yu	0	SGP	+?B	−6N	+?B	+88N	+22B	−2N	−12N	−25B	=?N	4.5	36.5	36.5	9.50	1307	0.0
64	FIDE 5878462	0	—	+?N	+56B	−16N	−27B	−42N	+83B	=77N	+?B	−45N	4.5	36.0	36.0	11.00	704	0.0
65	FIDE 6016502	0	—	=34N	−21B	−49B	+?N	+?B	−40N	−43B	+88N	+97B	4.5	33.5	33.5	8.75	742	0.0
66	FIDE 5860989	0	—	−25N	+?B	+?N	+?B	−33N	=54B	+67N	−34B	−68B	4.5	31.0	31.0	7.00	622	0.0
67	Tan, Leanne	0	SGP	+?B	−33N	−?B	+?N	=78B	+70N	−66B	+86B	−43N	4.5	27.5	27.5	10.00	622	0.0
68	Sim, En Xi Audelia	0	SGP	F	=?B	+?N	−12B	−86N	+?N	−37B	+77B	+66N	4.5	24.0	24.0	8.50	1262	0.0
69	FIDE 531001599	0	—	+?B	+?N	−45B	−24N	−75B	=97N	+?B	+?N	−36B	4.5	23.0	23.0	1.25	672	0.0
70	FIDE 5878136	0	—	−32B	+?N	+?B	=?N	−13N	−67B	−?N	+?B	+85N	4.5	20.0	20.0	3.50	809	0.0
71	FIDE 5869536	0	—	−17B	+?N	+?B	−49N	−35B	−?N	=?B	+?N	+?B	4.5	17.0	17.0	0.00	887	0.0
72	FIDE 5870798	0	—	−?B	+?N	+?B	=?N	+87B	−?B	+86N	−37N	−?B	4.5	12.5	12.5	7.00	634	0.0
73	FIDE 5872138	0	—	+?N	+?B	−7N	−59B	−29N	+89B	+57N	−39B	−61N	4.0	37.0	37.0	8.50	773	0.0
74	Lum, Liam	0	SGP	−12N	+?B	−18N	+93B	+?N	−76B	−?N	+87B	−56N	4.0	28.5	28.5	6.50	676	0.0
75	Lim, Adam Tianyue	0	SGP	−3N	+?B	+54N	−33B	+69N	−?B	−?N	+?B	−51N	4.0	27.0	27.0	9.50	683	0.0
76	Duan, Jingtian	0	SGP	−98B	−40N	+?B	+?N	+52B	+74N	−22B	−?N	−?B	4.0	23.0	23.0	9.00	716	0.0
77	Huang, Enya	0	SGP	+?B	−1N	−?B	+?N	+?B	−?N	=64B	−68N	=79B	4.0	21.5	21.5	4.25	996	0.0
78	FIDE 5882753	0	—	+?N	−4B	+?N	−25B	=67N	=92B	−?N	+?B	−?N	4.0	20.5	20.5	3.75	942	0.0
79	FIDE 5882249	0	—	−6B	−44N	+?B	=?N	−98B	+?N	+?B	−?N	=77N	4.0	18.5	18.5	2.00	745	0.0
80	FIDE 5871867	0	—	+?N	−9B	+?B	−?N	+?B	−47N	+?B	−28N	−?B	4.0	18.0	18.0	0.00	692	0.0
81	Lau, Yaokai Harvey	0	SGP	+?N	−3B	−?N	+?B	+82N	−35B	−?N	+?B	−?N	4.0	16.5	16.5	4.00	775	0.0
82	FIDE 5863538	0	—	+?B	=?N	−44B	=?N	−81B	−?N	+?B	−53N	+100B	4.0	16.0	16.0	2.00	776	0.0
83	FIDE 5868513	0	—	+?B	−19N	=?B	+98N	=?B	−64N	−?B	−?N	+?B	4.0	13.0	13.0	2.50	718	0.0
84	FIDE 5857090	0	—	+?B	−2N	−?B	−?N	=?B	=?N	+?B	−?N	+?B	4.0	7.5	7.5	0.00	1491	0.0
85	Diwan, Aashi	0	FID	+31B	+?N	−6B	+52N	=17B	−23N	−40B	−?N	−70B	3.5	40.5	40.5	14.25	1408	0.0
86	FIDE 5881838	0	—	−?B	+31N	=40B	+?N	+68B	−17N	−72B	−67N	−?B	3.5	31.5	31.5	13.25	887	0.0
87	FIDE 5881404	0	—	+?B	=98N	+?B	−16B	−72N	−30N	=?B	−74N	=89B	3.5	27.0	27.0	3.00	736	0.0
88	FIDE 5878292	0	—	+?N	+?B	−11N	−63B	−55N	=?B	−93N	−65B	+?N	3.5	23.5	23.5	0.00	658	0.0
89	FIDE 5870186	0	—	−5B	−?N	+?B	+?N	−?B	−73N	−?B	+?N	=87N	3.5	14.5	14.5	1.75	670	0.0
90	FIDE 5884330	0	—	−?N	=?B	−?N	−54B	−?N	+?N	+?B	−?N	+?B	3.5	5.0	5.0	0.00	651	0.0
91	FIDE 547015268	0	—	+?N	+54B	−15N	−50B	−39N	+?B	−29N	−57B	−?N	3.0	33.0	33.0	5.00	663	0.0
92	Ong, Yujie Atlas	0	SGP	+?B	−5N	=?B	−61N	+43B	=78N	−?B	−?N	F	3.0	24.5	24.5	7.50	670	0.0
93	FIDE 5881501	0	—	−14B	+105N	−?B	−74N	+?B	−57N	+88B	−?N	F	3.0	22.0	22.0	3.50	654	0.0
94	Liew, Ming Yang Isaac	0	SGP	+44B	−22N	+?B	+?N	−45B	F	F	F	F	3.0	20.5	20.5	5.00	1513	0.0
95	FIDE 5862477	0	—	−8N	−?B	F	+?B	−54N	−?B	−?N	+?B	+?N	3.0	12.0	12.0	0.00	757	0.0
96	Ong, Yi Xiang Orion	0	SGP	+?N	−15B	−?B	−?N	−?N	+?B	−?N	−?B	+103N	3.0	7.5	7.5	1.00	663	0.0
97	Koh, Zhi Xin Skylar	0	SGP	+?B	−17N	−52B	−31N	F	=69B	+98N	−54B	−65N	2.5	34.0	34.0	4.75	887	0.0
98	FIDE 5882745	0	—	+76N	=87B	−?N	−83B	+79N	−?B	−97B	−?N	−?B	2.5	18.0	18.0	9.75	634	0.0
99	Lum, Linus	0	SGP	−45B	+?N	+?B	−48N	−?B	−?N	−?B	=?N	−?B	2.5	10.0	10.0	0.00	680	0.0
100	FIDE 5868475	0	—	−15N	−13B	+?N	−?B	F	−?B	+?N	−?B	−82N	2.0	17.0	17.0	0.00	720	0.0
101	Lim, Zheng Ze Nathan	0	SGP	F	−8B	−?N	+?B	+?N	−?N	−51B	−?N	−?B	2.0	12.0	12.0	0.00	757	0.0
102	FIDE 5864550	0	—	−?B	+?N	−14B	−?N	−?B	−?N	=?B	−?N	=?N	2.0	6.5	6.5	0.00	654	0.0
103	FIDE 5868467	0	—	−7N	−?B	−?N	−?B	−?N	−?B	F	+?N	−96B	1.0	10.0	10.0	0.00	773	0.0
104	FIDE 5884233	0	—	−16N	−?B	−?N	−?B	−?N	F	−?B	−?N	+?B	1.0	6.5	6.5	0.00	736	0.0
105	FIDE 5873657	0	—	−?N	−93B	−?N	−?B	F	F	F	F	F	0.0	3.0	3.0	0.00	634	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Zhang, YunyiSGP
+58.4
7.0 pts · #2
2Yeo, Si Xu ShaneSGP
+49.6
7.5 pts · #10
3Wee, Yu Heng Lucas JohnSGP
+30.0
8.5 pts · #1

Top rating losers

1Cheng, Lin Yi NathanSGP
-29.6
6.0 pts · #55
2Ong, Qi YiSGP
-29.2
7.0 pts · #3
3Yeap, Jing ChenSGP
-28.4
6.5 pts · #40

Biggest upsets

R3+275 Elo gap
Lee, Kar Yan Rebekah1411 beat Oon, Tsao Kyle1686
R8+163 Elo gap
Lee, Kar Yan Rebekah1411 beat Jin, Yi1574
R9+155 Elo gap
Yeo, Si Xu Shane1491 beat Yeap, Jing Chen1646