CChessStats

Golden Week Open 2026(Group-A)

Open SwissStandard

36 players participated in this 5-round tournament, held from 04 May 2026 to 06 May 2026 in Tokyo, Japan. 1 titled players from 2 federations. Top 10 Elo average was 1572, and top seed was Takuya Otani (🇯🇵 JPN, 1684).

Takuya Otani (🇯🇵 JPN, 1684) won with 4.5/5, ahead of Satomi Inoue (4.0). Otani shared the lead from round 4 and broke clear in the final round.

The biggest upset came in round 1: Kairi Akiyama (1476) beat Minrui Wang (1631), a +155-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
🇯🇵Takuya Otani1684
Avg top 10
1,572
Participants
36
Titled players · 1
WCM×1
Federations · 2 represented
🇯🇵Japan×11
🇹🇼Chinese Taipei×1
Top 3

How it unfolded

Top 6 · 5 rounds

Takuya Otani led from R5; +0.5-point edge over the runner-up. Title race converged from 3 co-leaders at R4 to 1 by R5.

Co-leaders
16
5
1
3
1
1.52.545R1R2R3R4R5Otani takes lead
Otani4.544Inoue43.5Akiyama3.5
R5 · LEADER CHANGE06 May

Takuya Otani takes the sole lead (4.5/5).

R2 · HEAD-TO-HEAD · WINNER VS 2ND

Takuya Otani beat FIDE 7003633 (Black).

R3–R5 · WIN STREAK

FIDE 7003633 won 3 in a row (R3–R5).

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Takuya Otani*
1
2FIDE 7003633
0
*
3FIDE 7006411*
0
4Satomi Inoue
1
*

Grille américaine

#PlayerEloFedR1R2R3R4R5PtsBu C1BuSBPerfΔ
1Otani, Takuya1684JPN+12B+4N=5B+10N+7B4.514.017.015.251804+15.6
2Inoue, Satomi1475JPN+22B=6N+3B=14N+10B4.013.515.512.252401+26.8
3FIDE 70064110+18N+?B2N+23B+6N4.012.012.08.0015480.0
4FIDE 70036330+27B1B+11N+25N+?B4.011.011.06.5016220.0
5Akiyama, Kairi1476JPN+13N+15B=1N6B+21N3.514.016.510.751851+39.2
6FIDE 70076550+?B=2B+16N+5N3B3.514.014.08.0015560.0
7Wong, Linda JaneWCM1599TPE=8B+17N+20B+19N1N3.513.015.59.251661+3.4
8FIDE 55284700=7N16B+?N+17B+18N3.511.011.06.7515800.0
9FIDE 70086510+32B=?N+24N?B+19B3.55.55.55.5013510.0
10FIDE 70086940+?N+?N+13B1B2N3.011.511.53.0015850.0
11FIDE 70086350+28NF4B+16B+20N3.010.510.56.5015240.0
12Kanehara, Hiromichi1517JPN1N+35B14N+31B+23N3.010.510.53.00884-5.6
13Wang, Minrui1631JPN5B+33N10N+28B+24N3.010.011.04.50676-28.4
14FIDE 70088800+?N=27N+12B=2B?N3.08.58.55.7515350.0
15Kanehara, Makoto0JPN+?B5N?N+?B+?N3.03.53.50.0015510.0
16Kitahara, Fumihiro1504JPN=17B+8N6B11N+27B2.512.514.06.251808+32.0
17Takase, Hayato1638JPN=16N7B+26B8N+34B2.511.512.03.751359-29.2
18FIDE 700853803B=29N+33B+22N8B2.511.012.03.7516210.0
19FIDE 70088990+31B=22N+?N7B9N2.510.010.02.0015790.0
20FIDE 70079220+?N+?B7N=21B11B2.59.09.01.2515850.0
21Vyom, Walia0JPNF+32N+?B=20N5B2.57.07.02.256760.0
22Matsumoto, Shinji1601JPN2N=19B=34N18B+31N2.010.010.52.50675-26.8
23FIDE 70086600+?N?B+27B3N12B2.08.58.51.5014300.0
24FIDE 70089450F+30N9B+?N13B2.08.08.01.508310.0
25FIDE 70089880F+28B+35N4B?N2.05.55.51.507490.0
26FIDE 70074340F+36B17N+35B?N2.02.52.50.007880.0
27Okita, Ken1591JPN4N=14B23N+29B16N1.511.513.03.00704-24.8
28FIDE 7008716011B25N+?B13N=30B1.59.59.50.758310.0
29FIDE 70082440F=18B?N27N+?B1.54.04.01.257700.0
30FIDE 28701180+36N24B?N?B=28N1.53.53.50.757800.0
31FIDE 7008589019N+?B?B12N22B1.07.57.50.007490.0
32FIDE 700890209N21B+?N?B?N1.06.06.00.008210.0
33FIDE 70088480?N13B18NF+36B1.05.55.50.007850.0
34FIDE 70086190FF=22B?N17N0.54.54.51.0013170.0
35FIDE 86958650F12N25B26N?B0.07.07.00.007170.0
36FIDE 7008759030B26NF?B33N0.04.54.50.007490.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets