2025 Byron Capital Darling Downs Open - Major Division

Open SwissStandard

68 players participated in this 7-round tournament, held from 04 Oct 2025 to 06 Oct 2025 in Toowoomba, Australia. 4 titled players from 6 federations. Top 10 Elo average was 1847, and top seed was Joel Leong (🇦🇺 AUS, CM, 1971).

Atash Iddon (🇦🇺 AUS, 0) won with 6.0/7, ahead of Ruilin Qi (6.0) and R.A. Tony Dowden (5.5). Iddon won on tie-break after catching the field in the final round.

The biggest upset came in round 2: Brett Oakley (1461) beat Maximilian Windsor (1738), a +277-point gap.

Location

🇦🇺Toowoomba, Australia

Dates

04 Oct 2025 → 06 Oct 2025

Time control

Standard: 60 minutes with 30 seconds increment from move 1

System

Swiss · 7 rounds

Top seed

🇦🇺CMJoel Leong1971

Avg top 10

1,847

Participants

Titled players · 4

CM×3

WCM×1

Federations · 6 represented

🇦🇺Australia×58

🇳🇿New Zealand×4

🇻🇺Vanuatu×2

🇨🇳China×2

🇱🇰Sri Lanka×1

🇵🇰Pakistan×1

Top 3

🥇
Atash Iddon
🇦🇺AUS
6.0pts·1910perf0.0
🥈
Ruilin Qi
🇨🇳CHN·1764
6.0pts·2182perf+106.0
🥉
CMR.A. Tony Dowden
🇳🇿NZL·1939
5.5pts·1971perf+4.8

How it unfolded

Top 6 · 7 rounds

Tight race until R7; 2 players tied at 6.0/7, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 2 at the finish.

Co-leaders

Iddon6Qi6Dowden5.5Retnaraja5.5Devin5.5Leitch5

R7 · TIEBREAK CLUSTER

2 players finish on 6.0/7. Iddon takes the title on Buchholz Cut1 (30.5).

R5 · HEAD-TO-HEAD · WINNER VS 2ND

Atash Iddon drew with Ruilin Qi (White).

WIN STREAKS · 3 top finishers

Atash Iddon 4 wins (R1–R4)Ruilin Qi 4 wins (R1–R4)CM R.A. Tony Dowden 3 wins (R1–R3)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1Atash Iddon	*	½	—	1
2Ruilin Qi	½	*	1	½
3CMR.A. Tony Dowden	—	0	*	—
4WCMAthena-Malar Retnaraja	0	½	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	R7	Pts	Bu C1	Bu	SB	Perf	Δ
1	Iddon, Atash	0	AUS	+24B	+18B	+4N	+8N	=2B	=5N	+10B	6.0	30.5	34.5	28.75	1910	0.0
2	Qi, Ruilin	1764	CHN	+31B	+15N	+12B	+3B	=1N	+10N	=4B	6.0	30.5	34.0	28.25	2182	+106.0
3	Dowden, R.A. TonyCM	1939	NZL	+39B	+11N	+22B	−2N	=8B	+7B	+13N	5.5	29.0	32.0	23.50	1971	+4.8
4	Retnaraja, Athena-MalarWCM	1851	AUS	+30B	+38N	−1B	+14N	+24B	+6N	=2N	5.5	29.0	32.0	23.00	2103	+54.4
5	Devin, Alex	1864	AUS	−36N	+64B	+58N	+57B	+18N	=1B	+11N	5.5	21.5	23.0	17.00	1889	+6.8
6	Leitch, Jason	1822	AUS	+60N	+34B	=13N	+20B	=7N	−4B	+21N	5.0	26.5	28.5	18.25	1873	+21.6
7	Doran, Kaiden	1831	AUS	+45B	=41N	+35B	+19N	=6B	−3N	+22B	5.0	25.0	28.0	18.50	1879	+21.6
8	Liu, Haoqian (William)	1767	AUS	+57N	+58B	+49N	−1B	=3N	=21B	+23N	5.0	24.0	26.0	15.25	1909	+42.0
9	Chisholm, Tom R	1842	AUS	+67N	=29B	−20N	+37B	=17N	+45B	+19N	5.0	21.5	22.5	14.75	1757	-11.4
10	Leong, JoelCM	1971	AUS	=17N	+66B	+29N	+13B	+23N	−2B	−1N	4.5	28.0	29.0	15.00	1824	-28.4
11	Ahmad Abdullah	1727	PAK	+51B	−3B	+25N	=12N	+39B	+24N	−5B	4.5	26.5	29.0	15.75	1802	+30.0
12	Kodituwakku, Binuka	0	AUS	+43N	+21B	−2N	=11B	+29N	−13B	+38N	4.5	25.5	28.5	15.75	1816	+29.6
13	Godinho, Isaac	1760	AUS	+62B	+36N	=6B	−10N	+46B	+12N	−3B	4.5	25.5	27.5	15.00	1856	+38.0
14	Wang, Yuwei	1634	AUS	=37N	=26B	+66N	−4B	+54N	+40B	=18N	4.5	22.0	23.0	12.00	1725	+18.4
15	Chen, Martin	1646	AUS	+68N	−2B	=61N	=50B	+42N	=17B	+32N	4.5	21.0	21.5	11.25	1689	+14.4
16	Awad, Jonah	1750	AUS	=32N	−17B	−50N	+64B	+60N	+25B	+56N	4.5	18.5	20.0	11.75	1597	-44.0
17	Lee, Timothy	1607	AUS	=10B	+16N	−19B	+33N	=9B	=15N	=27B	4.0	26.5	30.0	17.00	1822	+77.6
18	Hart, Luka	1742	AUS	+25B	−1N	+36B	+31N	−5B	=56N	=14B	4.0	26.5	29.0	14.00	1729	-1.6
19	Yin, Grace (Tingwen)	1762	AUS	+50N	=20B	+17N	−7B	+40N	=23B	−9B	4.0	25.0	27.5	13.50	1655	-16.2
20	Barnes, Rossi	1607	AUS	+61B	=19N	+9B	−6N	=27B	−22N	+47B	4.0	25.0	27.0	14.00	1727	+37.2
21	Pai, Avaneesh	1735	AUS	+42B	−12N	=30B	+44N	+43B	=8N	−6B	4.0	24.0	27.0	13.25	1720	-3.6
22	Jigando, Neo	1728	AUS	+53N	+40B	−3N	−23B	+50N	+20B	−7N	4.0	24.0	26.5	12.00	1655	-22.4
23	Bashirov, Ernest	1501	AUS	=52N	+55B	+33B	+22N	−10B	=19N	−8B	4.0	23.5	26.0	13.25	1791	+101.6
24	Rowe, Abigail	1714	NZL	−1N	+62B	+59N	+49B	−4N	−11B	+45N	4.0	23.5	25.5	9.50	1732	+7.6
25	Xia, ChengYi	1529	AUS	−18N	+28N	−11B	+52B	+41N	−16N	+46B	4.0	23.0	25.5	12.50	1750	+83.2
26	Ellison, JeremyCM	1820	VAN	=35B	=14N	=44B	−39N	+51B	=30N	+36N	4.0	20.5	23.0	12.75	1637	-60.8
27	Windsor, Maximilian	1738	AUS	+63N	−49B	−57N	+59B	=20N	+37B	=17N	4.0	17.5	19.5	11.00	1539	-30.4
28	Bansal, Azaan	1652	AUS	−49N	−25B	−51N	+65N	+59B	+42B	+40N	4.0	17.0	18.5	9.50	1429	-60.4
29	Nguyen, Quan	1676	AUS	+54B	=9N	−10B	+30N	−12B	−32N	+48B	3.5	24.0	26.5	11.50	1666	-4.4
30	Li, Austin	1579	AUS	−4N	+51B	=21N	−29B	+61N	=26B	=34N	3.5	23.0	25.0	10.25	1650	+18.8
31	Wang, Chloe	1544	AUS	−2N	+68B	+34N	−18B	=37N	=33B	=43N	3.5	23.0	23.5	8.75	1652	+34.0
32	Sun, Dejun	1539	AUS	=16B	−33N	=52N	+34B	=38N	+29B	−15B	3.5	22.5	25.0	12.00	1686	+54.8
33	Stokes, Mark C	1695	AUS	F	+32B	−23N	−17B	+35N	=31N	+39B	3.5	21.5	21.5	11.75	1614	-12.0
34	Liu, Mike	1653	AUS	+47B	−6N	−31B	−32N	+62B	+50N	=30B	3.5	21.0	23.0	9.25	1577	-29.2
35	Perera, T H Adrian Savidya	1549	SRI	=26N	+52B	−7N	−38B	−33B	+58N	+49N	3.5	20.5	22.5	9.00	1688	+50.8
36	Wu, Elvis	1598	AUS	+5B	−13B	−18N	=48N	=47B	+51N	−26B	3.0	24.0	26.5	11.00	1617	+3.2
37	Yousafi, Simon	0	AUS	=14B	+46N	=41B	−9N	=31B	−27N	=44B	3.0	23.0	26.0	10.00	1627	0.0
38	Ki, Woo Joon	1697	AUS	+48B	−4B	−40N	+35N	=32B	=39N	−12B	3.0	23.0	26.0	9.75	1631	-20.8
39	Zhu, Zane (Zichen)	1599	AUS	−3N	=53B	+64N	+26B	−11N	=38B	−33N	3.0	23.0	24.5	8.25	1606	-3.2
40	Nguyen, Nhan	0	AUS	+44B	−22N	+38B	+41N	−19B	−14N	−28B	3.0	22.5	25.5	9.00	1634	0.0
41	Ghodosi, Hossein	1678	AUS	+59N	=7B	=37N	−40B	−25B	−47N	+63B	3.0	20.0	22.0	8.00	1569	-14.2
42	Chen, Marlon	1514	AUS	−21N	−43B	+62N	+55B	−15B	−28N	+57B	3.0	20.0	22.0	6.50	1580	+23.6
43	Weller, Tony	1638	AUS	−12B	+42N	F	+61B	−21N	=46N	=31B	3.0	20.0	20.0	8.25	1568	-9.8
44	Zhu, Alex	1619	AUS	−40N	+63B	=26N	−21B	=48N	=49B	=37N	3.0	19.5	21.5	8.25	1608	-7.6
45	Liu, Clarissa	1571	AUS	−7N	−59B	+68N	+66B	+49N	−9N	−24B	3.0	19.5	20.0	4.00	1502	-24.8
46	Mantello, Sonny	1669	AUS	=64N	−37B	+53N	+60B	−13N	=43B	−25N	3.0	19.0	20.5	6.75	1601	-18.4
47	Xu, Sophia	1470	AUS	−34N	−57B	=63N	+53B	=36N	+41B	−20N	3.0	18.0	20.0	8.00	1538	+22.8
48	Williams, Elizabeth	1507	AUS	−38N	=67B	=55N	=36B	=44B	+57N	−29N	3.0	17.0	18.0	6.75	1575	+24.8
49	Oakley, Brett	1461	AUS	+28B	+27N	−8B	−24N	−45B	=44N	−35B	2.5	23.5	26.5	9.50	1558	+29.6
50	Vijay, Ayaansh	1542	AUS	−19B	=65N	+16B	=15N	−22B	−34B	=53N	2.5	23.0	24.5	8.75	1550	+1.6
51	Frost, Angus	1509	AUS	−11N	−30N	+28B	+58B	−26N	−36B	=52N	2.5	21.5	23.5	7.25	1568	+17.6
52	Xie, Jason Zihan	1685	NZL	=23B	−35N	=32B	−25N	=58B	=63N	=51B	2.5	19.5	21.5	7.00	1437	-94.8
53	Dudipalli, Hamsini	1511	AUS	−22B	=39N	−46B	−47N	=65B	+66N	=50B	2.5	17.0	18.0	4.50	1364	-35.6
54	Tiong, Rayden	1490	AUS	−29N	=60B	=67N	+63B	−14B	−55N	=58B	2.5	16.5	17.5	4.50	1505	+4.4
55	Kelly, Luke	1650	AUS	F	−23N	=48B	−42N	+66B	+54B	F	2.5	13.5	13.5	5.00	1415	-51.2
56	Karthikeyan, Shivam	1453	AUS	−66N	F	F	+67B	+57N	=18B	−16B	2.5	12.5	12.5	5.00	1748	+59.2
57	Lapthorne, Alex	1548	AUS	−8B	+47N	+27B	−5N	−56B	−48B	−42N	2.0	23.5	26.0	7.00	1458	-37.6
58	Xie, Mason Zixuan	1630	NZL	+65B	−8N	−5B	−51N	=52N	−35B	=54N	2.0	21.5	23.0	4.00	1370	-76.8
59	Wu, Ethan	1493	AUS	−41B	+45N	−24B	−27N	−28N	+68B	F	2.0	20.0	20.5	3.50	1504	+1.6
60	Qin, Lexuan	1570	CHN	−6B	=54N	+65B	−46N	−16B	=61N	F	2.0	19.0	20.5	3.75	1360	-36.8
61	Tasso Jayson	0	VAN	−20N	F	=15B	−43N	−30B	=60B	+62N	2.0	19.0	19.0	5.25	1471	0.0
62	Ruhan Bulchandani	1540	AUS	−13N	−24N	−42B	+68B	−34N	+65N	−61B	2.0	18.5	19.0	2.00	1372	-41.6
63	Dani, Anuj	1520	AUS	−27B	−44N	=47B	−54N	+64B	=52B	−41N	2.0	18.0	19.5	4.25	1343	-49.6
64	Solomon, Anthony	0	AUS	=46B	−5N	−39B	−16N	−63N	F	+67B	1.5	19.0	19.0	2.50	1471	0.0
65	Mills, Ross	0	AUS	−58N	=50B	−60N	−28B	=53N	−62B	=68N	1.5	15.0	15.5	2.75	1322	0.0
66	Zhao, Sayge	0	AUS	+56B	−10N	−14B	−45N	−55N	−53B	F	1.0	19.5	19.5	2.50	1359	0.0
67	Cervenjak, Mark	1572	AUS	−9B	=48N	=54B	−56N	F	F	−64N	1.0	14.5	14.5	2.75	1379	-20.8
68	Wang, Iris	1438	AUS	−15B	−31N	−45B	−62N	F	−59N	=65B	0.5	16.5	16.5	0.75	759	-63.2

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Qi, RuilinCHN
+106.0
6.0 pts · #2
2Bashirov, ErnestAUS
+101.6
4.0 pts · #19
3Xia, ChengYiAUS
+83.2
4.0 pts · #15

Top rating losers

1Xie, Jason ZihanNZL
-94.8
2.5 pts · #47
2Xie, Mason ZixuanNZL
-76.8
2.0 pts · #61
3Wang, IrisAUS
-63.2
0.5 pts · #68

Biggest upsets

R2+277 Elo gap
Oakley, Brett1461 beat Windsor, Maximilian1738
R1+266 Elo gap
Wu, Elvis1598 beat Devin, Alex1864
R3+235 Elo gap
Barnes, Rossi1607 beat Chisholm, Tom R1842