Golden Week Open 2026(Open)

Open SwissStandard

76 players participated in this 5-round tournament, held from 04 May 2026 to 06 May 2026 in Tokyo, Japan. 1 titled players from 8 federations. Top 10 Elo average was 1878, and top seed was Hiroaki Maeshima (🇯🇵 JPN, 1951).

Kaviinayan Meiyazhagan (🇰🇷 KOR, 1879) won with 5.0/5, ahead of Domenic Clark (4.0) and Ruhan Xiao (4.0). Meiyazhagan won solo starting round 4.

The biggest upset came in round 3: Ruhan Xiao (1642) beat Pierre-Francois Planche (1939), a +297-point gap.

Location

🇯🇵Tokyo, Japan

Dates

04 May 2026 → 06 May 2026

Time control

Standard: 90 minutes with 30 second increment from move 1

System

Swiss · 5 rounds

Top seed

🇯🇵Hiroaki Maeshima1951

Avg top 10

1,878

Participants

Titled players · 1

WCM×1

Federations · 8 represented

🇯🇵Japan×41

🇨🇳China×6

🇹🇼Chinese Taipei×4

🇺🇸United States of America×3

🇭🇰Hong Kong China×3

🇰🇷South Korea×2

🇧🇷Brazil×1

🇨🇦Canada×1

Top 3

🥇
Kaviinayan Meiyazhagan
🇰🇷KOR·1879
5.0pts·2583perf+61.4
🥈
Domenic Clark
🇯🇵JPN·1777
4.0pts·1823perf+4.0
🥉
Ruhan Xiao
🇨🇳CHN·1642
4.0pts·2095perf+114.0

How it unfolded

Top 6 · 5 rounds

Kaviinayan Meiyazhagan led from R4; +1.0-point edge over the runner-up.

Co-leaders

Meiyazhagan5Xiao4Moawad4Sasaki4Clark4Yasuda4

R4–R5 · LEAD HELD

Kaviinayan Meiyazhagan never relinquished the lead after R4; final gap +1.0 over the runner-up.

WIN STREAKS · 2 top finishers

Kaviinayan Meiyazhagan 5 wins (R1–R5)Matthew Moawad 3 wins (R3–R5)

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	Pts	Bu C1	Bu	SB	Perf	Δ
1	Meiyazhagan, Kaviinayan	1879	KOR	+35N	+2B	+17N	+7B	+8N	5.0	14.0	16.5	16.50	2583	+61.4
2	Clark, Domenic	1777	JPN	+21B	−1N	+40B	+47N	+25B	4.0	13.5	15.5	10.50	1823	+4.0
3	Xiao, Ruhan	1642	CHN	+23N	=10B	+12N	=17B	+22N	4.0	13.0	16.0	12.75	2095	+114.0
4	Sasaki, Kaishi	1665	JPN	=33N	+69B	+44B	=9N	+19B	4.0	11.0	12.0	9.00	2082	+84.8
5	Yasuda, Ousuke	1721	JPN	−17N	+37B	+50N	+46B	+29N	4.0	10.5	12.5	9.50	1091	-11.2
6	Moawad, Matthew	0	USA	+49B	−18N	+57B	+45N	+20B	4.0	10.0	12.0	9.00	1739	0.0
7	Jin, Sangwoo	1745	JPN	+48B	+22N	+19B	−1N	=11B	3.5	14.5	16.5	9.75	2009	+54.8
8	Sugimoto, Koichi	1789	JPN	=26N	+32B	+46N	+10B	−1B	3.5	14.0	16.0	9.50	1860	+7.4
9	Kim, Changhyung	1903	KOR	=32N	+38B	+24N	=4B	=15N	3.5	13.0	15.5	10.50	1812	-9.6
10	Kimura, Ryota	1824	JPN	+18B	=3N	+47B	−8N	+41B	3.5	13.0	15.0	9.50	1768	-5.8
11	FIDE 7008791	0	—	=13N	+58B	=23N	+18B	=7N	3.5	13.0	14.5	9.50	1713	0.0
12	Planche, Pierre-Francois	1939	FRA	+66B	=31N	−3B	+44N	+38B	3.5	11.0	12.0	6.75	1807	-12.6
13	Ozaki, Hugo	0	JPN	=11B	=67N	=32N	+51B	+33N	3.5	10.5	11.5	8.00	1788	0.0
14	Lo, Gareth	1436	HKG	+39B	−34N	+71B	=31N	+45B	3.5	9.5	10.0	6.25	1755	+43.6
15	Ma, Andy	1629	HKG	−31B	+71N	+34B	+65N	=9B	3.5	9.5	10.0	5.75	1818	+28.8
16	FIDE 7008600	0	—	+68B	=36N	−45B	+54N	+31B	3.5	9.0	10.0	6.75	1680	0.0
17	Nodon, Jeremi	1891	JPN	+5B	+51N	−1B	=3N	=21B	3.0	16.0	18.0	9.50	1783	-12.6
18	Jie, Jingfei	1659	JPN	−10N	+6B	+28B	−11N	+47B	3.0	14.0	16.0	9.00	1817	+16.8
19	Maeshima, Hiroaki	1951	JPN	+55N	+27B	−7N	+24B	−4N	3.0	13.5	15.5	8.00	1782	-19.2
20	Wu, Po-Hua	1827	TPE	=38N	+26B	+30N	=29B	−6N	3.0	13.0	15.5	8.75	1903	+9.6
21	Yu, Andrew	1625	HKG	−2N	=23B	+43N	+37B	=17N	3.0	12.5	15.0	8.00	1697	+10.0
22	Summerville, Nathan	1824	JPN	+60N	−7B	+53B	+30N	−3B	3.0	12.5	14.0	6.50	1740	-10.4
23	Ferreira, Raphael Suzuki	1797	BRA	−3B	=21N	=11B	+70N	+48B	3.0	12.5	13.5	6.25	1710	-9.0
24	Jiang, Luning	1613	CHN	+34B	+28N	−9B	−19N	+65B	3.0	12.0	13.0	6.50	1855	+46.4
25	Oi, Sounosuke	0	JPN	−44N	+52N	+35B	+27B	−2N	3.0	11.5	13.5	7.50	1761	0.0
26	Curtis, Toby	1626	JPN	=8B	−20N	+75B	=39N	+44B	3.0	11.0	11.0	5.00	1615	-0.8
27	Mizumoto, Takahiro	1792	JPN	+36B	−19N	+48B	−25N	+52B	3.0	10.5	12.5	6.50	1891	+10.2
28	Takashima, Bunji	1809	JPN	+42N	−24B	−18N	+59B	+46N	3.0	10.5	12.0	6.00	1517	-46.4
29	FIDE 7008732	0	—	+65B	+66N	=31B	=20N	−5B	3.0	10.5	11.5	4.75	1769	0.0
30	Nukui, Michitaka	1585	JPN	+74B	+57N	−20B	−22B	+56N	3.0	10.0	10.0	4.00	1775	+38.8
31	Takenouchi, Atsushi	1792	JPN	+15N	=12B	=29N	=14B	−16N	2.5	14.0	17.0	8.50	1793	+1.8
32	Mukai, Hiroyuki	1729	JPN	=9B	−8N	=13B	+63N	=40B	2.5	13.0	14.5	6.25	1693	-7.2
33	Takahashi, Taiga	1826	JPN	=4B	=53N	+56B	=41N	−13B	2.5	12.0	14.0	6.25	1759	-13.6
34	Bhatia, Praveen	1758	JPN	−24N	+14B	−15N	=58N	+50B	2.5	12.0	13.5	6.25	1455	-31.0
35	Sueyoshi Henna, Jose Luis	1711	JPN	−1B	=40N	−25N	+62B	+61N	2.5	12.0	13.5	4.25	1542	-17.6
36	Liu, Yian	1627	CHN	−27N	=16B	=37N	=43B	+59N	2.5	11.5	13.0	5.75	992	-11.2
37	Kanazawa, Shuya	0	JPN	+52B	−5N	=36B	−21N	+60N	2.5	11.5	13.0	4.75	1648	0.0
38	Kanno, Clara Yumi	1680	GER	=20B	−9N	+68N	+61B	−12N	2.5	11.5	12.5	4.00	1617	-4.0
39	Ma, Ethan	0	CAN	−14N	=49N	+76B	=26B	=42N	2.5	11.0	11.0	3.75	1569	0.0
40	Su,Guan-Rui	1590	TPE	+73N	=35B	−2N	=50B	=32N	2.5	11.0	11.0	3.50	1614	+3.6
41	Lu, Xiaohan	1603	CHN	+62B	−64N	+67B	=33B	−10N	2.5	9.0	10.0	3.75	1564	-4.8
42	Ishii, Hibiki	1655	JPN	−28B	−44N	+62B	+75N	=39B	2.5	9.0	9.0	2.75	1009	-11.6
43	Chen, Yihu	0	USA	+70B	−45N	−21B	=36N	+66B	2.5	8.5	9.5	3.25	1657	0.0
44	FIDE 7008724	0	—	+25B	+42B	−4N	−12B	−26N	2.0	13.5	16.0	5.50	1528	0.0
45	Fukuda, Toyoaki	1714	JPN	F	+43B	+16N	−6B	−14N	2.0	13.5	13.5	6.00	636	-16.6
46	Gentili, Niccolo	0	JPN	+54B	+76N	−8B	−5N	−28B	2.0	12.5	12.5	2.00	1634	0.0
47	Furukawa, Masayuki	0	JPN	+72N	+60B	−10N	−2B	−18N	2.0	12.0	12.5	2.00	1620	0.0
48	Toyota, Yusuke	1609	JPN	−7N	+55B	−27N	+71B	−23N	2.0	11.5	12.0	2.50	1575	-3.4
49	Hernandez, Jino	1427	JPN	−6N	=39B	=60N	=53B	=51N	2.0	10.5	12.0	4.00	1686	+38.0
50	FIDE 7008937	0	—	=58N	+61B	−5B	=40N	−34N	2.0	10.5	12.0	3.50	1447	0.0
51	Sirimalla, Srivatsa	1688	JPN	+69N	−17B	=64B	−13N	=49B	2.0	10.0	11.0	2.75	1764	+16.8
52	Diba, Seyed Reza	1604	JPN	−37N	−25B	+73N	+69B	−27N	2.0	9.5	9.5	1.00	1835	+11.4
53	Cha, Tony	1705	JPN	F	=33B	−22N	=49N	+58B	2.0	9.0	9.0	3.75	1642	-11.2
54	Lyles, William	1507	USA	−46N	+73B	=59N	−16B	=55N	2.0	9.0	9.0	1.75	1736	+11.6
55	Takayasu, Nobuyuki	1736	JPN	−19B	−48N	=58B	+67N	=54B	2.0	8.5	9.5	2.75	1447	-29.8
56	Chen Yong-Ye	1681	TPE	F	+59B	−33N	+68N	−30B	2.0	8.0	8.0	2.50	906	-37.6
57	Ogasa, Seiichi	1767	JPN	F	−30B	−6N	+76B	+74N	2.0	7.0	7.0	0.00	1644	-6.6
58	Lai, Yun-Cheng	1491	TPE	=50B	−11N	=55N	=34B	−53N	1.5	10.0	12.0	3.25	1608	+15.6
59	Li, Hongyun	0	CHN	+63B	−56N	=54B	−28N	−36B	1.5	9.5	11.0	2.50	1473	0.0
60	Misawa, YukiWCM	1664	JPN	−22B	−47N	=49B	+72N	−37B	1.5	9.5	10.0	1.50	1595	-5.2
61	Yasuda, Yu	0	JPN	=67B	−50N	+66B	−38N	−35B	1.5	8.0	9.0	1.50	1584	0.0
62	FIDE 7008678	0	—	−41N	=72B	−42N	−35N	+75B	1.5	8.0	8.0	0.25	1304	0.0
63	Li, Chengfei	1488	CHN	−59N	+74B	−65N	−32B	=71N	1.5	5.5	5.5	0.25	929	-8.0
64	Erkoc, Vedat	1861	JPN	F	+41B	=51N	F	F	1.5	4.5	4.5	3.50	1839	-1.0
65	FIDE 39982947	0	—	−29N	F	+63B	−15B	−24N	1.0	11.0	11.0	1.50	1452	0.0
66	Asai, Ippei	1735	JPN	−12N	−29B	−61N	+73B	−43N	1.0	10.5	10.5	0.00	1139	-9.6
67	FIDE 574003470	0	—	=61N	=13B	−41N	−55B	F	1.0	9.5	10.5	2.50	870	0.0
68	FIDE 7008643	0	—	−16N	+70N	−38B	−56B	F	1.0	9.0	10.0	1.00	1523	0.0
69	Otake, Sakae	1877	JPN	−51B	−4N	+72B	−52N	F	1.0	9.0	9.5	0.50	1430	-44.6
70	Ramkumar, Aravindh	1583	JPN	−43N	−68B	+74N	−23B	F	1.0	7.5	7.5	0.00	997	-9.2
71	FIDE 574003488	0	—	F	−15B	−14N	−48N	=63B	0.5	10.5	10.5	0.75	1219	0.0
72	Okubo, Sui	1535	JPN	−47B	=62N	−69N	−60B	F	0.5	6.0	6.0	0.75	971	-18.0
73	FIDE 7006683	0	—	−40B	−54N	−52B	−66N	F	0.0	7.5	7.5	0.00	809	0.0
74	FIDE 16306600	0	—	−30N	−63N	−70B	F	−57B	0.0	7.5	7.5	0.00	806	0.0
75	FIDE 7008910	0	—	F	F	−26N	−42B	−62N	0.0	7.0	7.0	0.00	841	0.0
76	Chong, Wing Hei	1702	JPN	F	−46B	−39N	−57N	F	0.0	6.5	6.5	0.00	967	-16.4

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Xiao, RuhanCHN
+114.0
4.0 pts · #2
2Sasaki, KaishiJPN
+84.8
4.0 pts · #8
3Meiyazhagan, KaviinayanKOR
+61.4
5.0 pts · #1

Top rating losers

1Takashima, BunjiJPN
-46.4
3.0 pts · #41
2Otake, SakaeJPN
-44.6
1.0 pts · #53
3Chen Yong-YeTPE
-37.6
2.0 pts · #63

Biggest upsets

R3+297 Elo gap
Xiao, Ruhan1642 beat Planche, Pierre-Francois1939
R5+286 Elo gap
Sasaki, Kaishi1665 beat Maeshima, Hiroaki1951
R5+278 Elo gap
Lo, Gareth1436 beat Fukuda, Toyoaki1714