2025 Oceania Youth Championship U10 Open

Open SwissStandard

50 players participated in this 9-round tournament, held from 13 Dec 2025 to 17 Dec 2025 in Brisbane, Australia. 3 federations represented. Top 10 Elo average was 1767, and top seed was Leo Kuncoro (🇦🇺 AUS, 1917).

Terrence Li (🇦🇺 AUS, 1893) won with 8.0/9, ahead of Zining (matthew) Jia (8.0) and Leo Kuncoro (6.5). Li shared the lead from round 8, winning on tie-break.

The biggest upset came in round 1: Ethan Wu (1495) beat Huankai (eden) Xu (1766), a +271-point gap.

Location

🇦🇺Brisbane, Australia

Dates

13 Dec 2025 → 17 Dec 2025

Time control

Standard: 90 minutes with 30 second increment from move 1

System

Swiss · 9 rounds

Top seed

🇦🇺Leo Kuncoro1917

Avg top 10

1,767

Participants

Federations · 3 represented

🇦🇺Australia×36

🇳🇿New Zealand×9

🇬🇺Guam×1

Top 3

🥇
Terrence Li
🇦🇺AUS·1893
8.0pts·2021perf+44.4
🥈
Zining (matthew) Jia
🇦🇺AUS·1774
8.0pts·2034perf+97.3
🥉
Leo Kuncoro
🇦🇺AUS·1917
6.5pts·1816perf-29.2

How it unfolded

Top 6 · 9 rounds

Tight race until R5; 2 players tied at 8.0/9, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 2 at the finish.

Co-leaders

Jia8Li8Su6.5Kuncoro6.5Le6Song6

R5–R9 · LEAD HELD

Zining (matthew) Jia held the sole lead from R5 through R9 without losing it.

R9 · TIEBREAK CLUSTER

2 players finish on 8.0/9. Li takes the title on Buchholz Cut1 (48.5).

R4 · HEAD-TO-HEAD · WINNER VS 2ND

Zining (matthew) Jia beat Terrence Li (White).

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1Zining (matthew) Jia	*	1	1	½
2Terrence Li	0	*	—	1
3Joey Su	0	—	*	—
4Leo Kuncoro	½	0	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	R7	R8	R9	Pts	Bu C1	Bu	SB	Perf	Δ
1	Li, Terrence	1893	AUS	+15B	+6N	+12B	−2N	+3B	+8N	+11B	+9N	+7B	8.0	48.5	54.0	46.00	2021	+44.4
2	Jia, Zining (matthew)	1774	AUS	+43B	+22N	+18B	+1B	+8N	=20B	+4N	=3N	+14B	8.0	46.0	49.0	43.50	2034	+97.3
3	Kuncoro, Leo	1917	AUS	+34N	=10B	+23N	+17B	−1N	+13B	=9N	=2B	+15N	6.5	47.5	51.5	34.00	1816	-29.2
4	Su, Joey	1871	AUS	+27N	+21B	−8N	=10B	+17N	+19N	−2B	+16B	+13N	6.5	44.5	49.0	32.75	1755	-38.4
5	Le, Quang Minh	1746	AUS	+31B	+20N	=24B	=19N	=21B	−11N	+17B	=6N	+18B	6.0	40.0	44.0	28.50	1685	-25.2
6	Zhang, Lucas	1595	NZL	+48N	−1B	−31N	+40B	+33N	+26B	=16N	=5B	+25N	6.0	40.0	42.0	24.25	1694	+46.4
7	Song, Quinn	1588	NZL	−40N	+39B	=37N	+42B	=25N	+12N	+18B	+8B	−1N	6.0	39.0	42.0	26.50	1722	+51.2
8	Xia, ChengYi	1612	AUS	+37B	+41N	+4B	+24N	−2B	−1B	+20N	−7N	=9B	5.5	46.5	50.0	25.25	1718	+37.2
9	Xu, Huankai (eden)	1766	NZL	−23N	=28B	+34N	+31B	+10N	+21N	=3B	−1B	=8N	5.5	43.0	47.0	26.25	1702	-23.6
10	Bansal, Azaan	1592	AUS	+46B	=3N	=32B	=4N	−9B	+37N	+19B	−14N	+20B	5.5	41.0	43.5	24.00	1674	+26.4
11	Lin, Xianchen (Mason)	1606	AUS	−33N	=36B	+46N	+41B	+22N	+5B	−1N	−15B	+21N	5.5	39.5	42.0	22.75	1678	+20.0
12	Ramanathan, Ashwin	1660	AUS	+36B	+33N	−1N	−20B	+23N	−7B	=39N	+34B	+22N	5.5	39.0	42.5	22.25	1600	-24.0
13	Parker, Lucas	1646	AUS	−29B	+44N	+43B	+32N	=19B	−3N	+21B	+20N	−4B	5.5	38.5	41.5	21.50	1662	+5.2
14	Kuncoro, Harvey	1652	AUS	=32N	−17B	−36N	+46B	+41N	+22B	+27N	+10B	−2N	5.5	38.5	41.0	22.50	1565	-32.4
15	Nisha Raj, Taran	1538	AUS	−1N	+48B	=42B	−37N	+47B	+43N	+24B	+11N	−3B	5.5	36.0	38.0	18.50	1777	+57.2
16	Stanton, John	1545	AUS	F	+35N	F	+49B	+31N	+25B	=6B	−4N	+26B	5.5	31.0	31.0	21.50	1809	+68.0
17	Wang, Isaac (Yijun)	1582	AUS	=38B	+14N	+29B	−3N	−4B	+30N	−5N	=27B	+31N	5.0	42.0	45.5	22.50	1676	+40.8
18	Addagada, Geetham	1639	NZL	+39N	+40B	−2N	+23B	−20N	+28B	−7N	+30B	−5N	5.0	41.5	45.0	20.50	1617	-4.0
19	Ren, Joshua	1443	AUS	=30B	+38N	+25N	=5B	=13N	−4B	−10N	=24N	+36B	5.0	40.5	44.0	21.75	1670	+100.0
20	Vijay, Ayaansh	1544	AUS	+47B	−5B	+40N	+12N	+18B	=2N	−8B	−13B	−10N	4.5	44.5	46.5	20.00	1596	+20.4
21	Kirschbaum, Asher	1568	NZL	+49B	−4N	+33B	+26N	=5N	−9B	−13N	+39B	−11B	4.5	41.0	42.5	16.50	1578	-2.0
22	Karthikeyan, Dharshan	1544	AUS	+50N	−2B	=41B	+29N	−11B	−14N	+35B	+38N	−12B	4.5	40.0	41.0	14.75	1466	-25.2
23	Wu, Ethan	1495	AUS	+9B	+26N	−3B	−18N	−12B	=38N	=29B	+36N	=24B	4.5	39.5	43.0	19.75	1614	+50.8
24	Zhu, Zane (Zichen)	1599	AUS	+35B	+42N	=5N	−8B	=28N	=27B	−15N	=19B	=23N	4.5	39.5	42.5	19.25	1444	-62.0
25	Batyrbekov, Kaisar	1682	AUS	+44B	=29N	−19B	+36N	=7B	−16N	+28B	=26N	−6B	4.5	39.5	42.5	18.50	1513	-74.8
26	Yendluri, Rithvik Chowdary	1693	AUS	+28N	−23B	+27N	−21B	+37B	−6N	+31N	=25B	−16N	4.5	38.0	41.5	18.75	1499	-83.2
27	Wang, Noah	1508	AUS	−4B	+49N	−26B	+43N	+32B	=24N	−14B	=17N	=28B	4.5	37.5	39.0	15.50	1571	+21.6
28	Wang, Ruoshui	1482	AUS	−26B	=9N	+30B	+38N	=24B	−18N	−25N	+33B	=27N	4.5	37.0	40.5	19.25	1578	+37.2
29	Huang, Joshua Kai-En	1420	AUS	+13N	=25B	−17N	−22B	−30N	+47B	=23N	=32B	+39N	4.5	36.0	38.0	17.50	1527	+44.4
30	Xie, Leo	1666	AUS	=19N	−32B	−28N	+44N	+29B	−17B	+37N	−18N	+38B	4.5	35.0	38.0	17.00	1452	-89.6
31	Oakley, Brett	1491	AUS	−5N	+47B	+6B	−9N	−16B	+42N	−26B	+44N	−17B	4.0	38.5	40.5	14.00	1463	-14.0
32	Lin, Xin (Oliver)	1427	NZL	=14B	+30N	=10N	−13B	−27N	−34B	=42B	=29N	+45B	4.0	37.0	40.0	16.75	1530	-0.4
33	Li-Zeng, Richard	0	AUS	+11B	−12B	−21N	+45N	−6B	−36N	+43B	−28N	+44B	4.0	35.5	38.5	14.50	1495	0.0
34	Kovalenko, Kiy	1543	AUS	−3B	=46N	−9B	+35N	=38B	+32N	=36B	−12N	=42B	4.0	35.5	38.0	14.25	1498	-18.8
35	Chen, Sijia	0	AUS	−24N	−16B	=47N	−34B	+46N	+41B	−22N	+37B	=40N	4.0	31.5	33.5	12.25	1173	0.0
36	Campos Wagner, Fulvio Alberto	1433	AUS	−12N	=11N	+14B	−25B	=42N	+33B	=34N	−23B	−19N	3.5	38.5	41.5	15.75	1426	-5.6
37	Chen, Isaac	0	AUS	−8N	+45N	=7B	+15B	−26N	−10B	−30B	−35N	+46B	3.5	38.5	41.0	14.00	1506	0.0
38	Liang, David Ye Cheng	0	NZL	=17N	−19B	+39N	−28B	=34N	=23B	+45N	−22B	−30N	3.5	35.5	38.5	13.25	1446	+2.0
39	Sheth, Adidev	1417	AUS	−18B	−7N	−38B	+50N	+45B	+44N	=12B	−21N	−29B	3.5	35.0	36.0	9.75	1398	-9.2
40	Chen, Jayden	1459	NZL	+7B	−18N	−20B	−6N	−44B	−45N	+50B	+43N	=35B	3.5	34.5	35.5	12.00	1390	-27.2
41	Luo, Roy	0	AUS	+45B	−8B	=22N	−11N	−14B	−35N	+46B	−42N	+49B	3.5	33.5	35.0	9.25	1449	0.0
42	Zhang, Aiden J	0	AUS	F	−24B	=15N	−7N	=36B	−31B	=32N	+41B	=34N	3.0	35.0	35.0	12.00	1375	0.0
43	Lakshman, Emmanuel	1496	AUS	−2N	+50B	−13N	−27B	+49N	−15B	−33N	−40B	+48N	3.0	34.5	35.5	4.50	786	-77.2
44	Jayasinghe, Attiligoda	1453	AUS	−25N	−13B	+50N	−30B	+40N	−39B	+48N	−31B	−33N	3.0	31.5	32.5	6.50	1287	-47.2
45	Lopatyuk, Leo	1569	GUM	−41N	−37B	+48N	−33B	−39N	+40B	−38B	+47N	−32N	3.0	27.5	29.5	7.50	1268	-62.4
46	FIDE 3299554	0	—	−10N	=34B	−11B	−14N	−35B	+50N	−41N	+48B	−37N	2.5	33.5	34.5	5.00	1279	0.0
47	Wang, Jamie	0	NZL	−20N	−31N	=35B	+48B	−15N	−29N	=49B	−45B	−50N	2.0	29.0	30.0	4.75	711	0.0
48	FIDE 3299120	0	—	−6B	−15N	−45B	−47N	+50B	+49N	−44B	−46N	−43B	2.0	26.5	27.5	2.50	724	0.0
49	FIDE 80449174	0	—	−21N	−27B	F	−16N	−43B	−48B	=47N	+50B	−41N	1.5	26.0	26.0	2.00	730	0.0
50	FIDE 3282384	0	—	−22B	−43N	−44B	−39B	−48N	−46B	−40N	−49N	+47B	1.0	24.0	25.5	2.00	674	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Ren, JoshuaAUS
+100.0
5.0 pts · #8
2Jia, Zining (matthew)AUS
+97.3
8.0 pts · #1
3Stanton, JohnAUS
+68.0
5.5 pts · #26

Top rating losers

1Xie, LeoAUS
-89.6
4.5 pts · #25
2Yendluri, Rithvik ChowdaryAUS
-83.2
4.5 pts · #21
3Lakshman, EmmanuelAUS
-77.2
3.0 pts · #46

Biggest upsets

R1+271 Elo gap
Wu, Ethan1495 beat Xu, Huankai (eden)1766
R3+259 Elo gap
Xia, ChengYi1612 beat Su, Joey1871
R3+239 Elo gap
Ren, Joshua1443 beat Batyrbekov, Kaisar1682