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
Titled players · 1
WCM×1
Federations · 2 represented
🇯🇵Japan×11
🇹🇼Chinese Taipei×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 5 roundsTakuya 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
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| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Takuya Otani | * | 1 | — | — |
| 2FIDE 7003633 | 0 | * | — | — |
| 3FIDE 7006411 | — | — | * | 0 |
| 4Satomi Inoue | — | — | 1 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Otani, Takuya | 1684 | JPN | +12B | +4N | =5B | +10N | +7B | 4.5 | 14.0 | 17.0 | 15.25 | 1804 | +15.6 |
| 2 | Inoue, Satomi | 1475 | JPN | +22B | =6N | +3B | =14N | +10B | 4.0 | 13.5 | 15.5 | 12.25 | 2401 | +26.8 |
| 3 | FIDE 7006411 | 0 | — | +18N | +?B | −2N | +23B | +6N | 4.0 | 12.0 | 12.0 | 8.00 | 1548 | 0.0 |
| 4 | FIDE 7003633 | 0 | — | +27B | −1B | +11N | +25N | +?B | 4.0 | 11.0 | 11.0 | 6.50 | 1622 | 0.0 |
| 5 | Akiyama, Kairi | 1476 | JPN | +13N | +15B | =1N | −6B | +21N | 3.5 | 14.0 | 16.5 | 10.75 | 1851 | +39.2 |
| 6 | FIDE 7007655 | 0 | — | +?B | =2B | +16N | +5N | −3B | 3.5 | 14.0 | 14.0 | 8.00 | 1556 | 0.0 |
| 7 | Wong, Linda JaneWCM | 1599 | TPE | =8B | +17N | +20B | +19N | −1N | 3.5 | 13.0 | 15.5 | 9.25 | 1661 | +3.4 |
| 8 | FIDE 5528470 | 0 | — | =7N | −16B | +?N | +17B | +18N | 3.5 | 11.0 | 11.0 | 6.75 | 1580 | 0.0 |
| 9 | FIDE 7008651 | 0 | — | +32B | =?N | +24N | −?B | +19B | 3.5 | 5.5 | 5.5 | 5.50 | 1351 | 0.0 |
| 10 | FIDE 7008694 | 0 | — | +?N | +?N | +13B | −1B | −2N | 3.0 | 11.5 | 11.5 | 3.00 | 1585 | 0.0 |
| 11 | FIDE 7008635 | 0 | — | +28N | F | −4B | +16B | +20N | 3.0 | 10.5 | 10.5 | 6.50 | 1524 | 0.0 |
| 12 | Kanehara, Hiromichi | 1517 | JPN | −1N | +35B | −14N | +31B | +23N | 3.0 | 10.5 | 10.5 | 3.00 | 884 | -5.6 |
| 13 | Wang, Minrui | 1631 | JPN | −5B | +33N | −10N | +28B | +24N | 3.0 | 10.0 | 11.0 | 4.50 | 676 | -28.4 |
| 14 | FIDE 7008880 | 0 | — | +?N | =27N | +12B | =2B | −?N | 3.0 | 8.5 | 8.5 | 5.75 | 1535 | 0.0 |
| 15 | Kanehara, Makoto | 0 | JPN | +?B | −5N | −?N | +?B | +?N | 3.0 | 3.5 | 3.5 | 0.00 | 1551 | 0.0 |
| 16 | Kitahara, Fumihiro | 1504 | JPN | =17B | +8N | −6B | −11N | +27B | 2.5 | 12.5 | 14.0 | 6.25 | 1808 | +32.0 |
| 17 | Takase, Hayato | 1638 | JPN | =16N | −7B | +26B | −8N | +34B | 2.5 | 11.5 | 12.0 | 3.75 | 1359 | -29.2 |
| 18 | FIDE 7008538 | 0 | — | −3B | =29N | +33B | +22N | −8B | 2.5 | 11.0 | 12.0 | 3.75 | 1621 | 0.0 |
| 19 | FIDE 7008899 | 0 | — | +31B | =22N | +?N | −7B | −9N | 2.5 | 10.0 | 10.0 | 2.00 | 1579 | 0.0 |
| 20 | FIDE 7007922 | 0 | — | +?N | +?B | −7N | =21B | −11B | 2.5 | 9.0 | 9.0 | 1.25 | 1585 | 0.0 |
| 21 | Vyom, Walia | 0 | JPN | F | +32N | +?B | =20N | −5B | 2.5 | 7.0 | 7.0 | 2.25 | 676 | 0.0 |
| 22 | Matsumoto, Shinji | 1601 | JPN | −2N | =19B | =34N | −18B | +31N | 2.0 | 10.0 | 10.5 | 2.50 | 675 | -26.8 |
| 23 | FIDE 7008660 | 0 | — | +?N | −?B | +27B | −3N | −12B | 2.0 | 8.5 | 8.5 | 1.50 | 1430 | 0.0 |
| 24 | FIDE 7008945 | 0 | — | F | +30N | −9B | +?N | −13B | 2.0 | 8.0 | 8.0 | 1.50 | 831 | 0.0 |
| 25 | FIDE 7008988 | 0 | — | F | +28B | +35N | −4B | −?N | 2.0 | 5.5 | 5.5 | 1.50 | 749 | 0.0 |
| 26 | FIDE 7007434 | 0 | — | F | +36B | −17N | +35B | −?N | 2.0 | 2.5 | 2.5 | 0.00 | 788 | 0.0 |
| 27 | Okita, Ken | 1591 | JPN | −4N | =14B | −23N | +29B | −16N | 1.5 | 11.5 | 13.0 | 3.00 | 704 | -24.8 |
| 28 | FIDE 7008716 | 0 | — | −11B | −25N | +?B | −13N | =30B | 1.5 | 9.5 | 9.5 | 0.75 | 831 | 0.0 |
| 29 | FIDE 7008244 | 0 | — | F | =18B | −?N | −27N | +?B | 1.5 | 4.0 | 4.0 | 1.25 | 770 | 0.0 |
| 30 | FIDE 2870118 | 0 | — | +36N | −24B | −?N | −?B | =28N | 1.5 | 3.5 | 3.5 | 0.75 | 780 | 0.0 |
| 31 | FIDE 7008589 | 0 | — | −19N | +?B | −?B | −12N | −22B | 1.0 | 7.5 | 7.5 | 0.00 | 749 | 0.0 |
| 32 | FIDE 7008902 | 0 | — | −9N | −21B | +?N | −?B | −?N | 1.0 | 6.0 | 6.0 | 0.00 | 821 | 0.0 |
| 33 | FIDE 7008848 | 0 | — | −?N | −13B | −18N | F | +36B | 1.0 | 5.5 | 5.5 | 0.00 | 785 | 0.0 |
| 34 | FIDE 7008619 | 0 | — | F | F | =22B | −?N | −17N | 0.5 | 4.5 | 4.5 | 1.00 | 1317 | 0.0 |
| 35 | FIDE 8695865 | 0 | — | F | −12N | −25B | −26N | −?B | 0.0 | 7.0 | 7.0 | 0.00 | 717 | 0.0 |
| 36 | FIDE 7008759 | 0 | — | −30B | −26N | F | −?B | −33N | 0.0 | 4.5 | 4.5 | 0.00 | 749 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Akiyama, KairiJPN+39.23.5 pts · #8
- 2Kitahara, FumihiroJPN+32.02.5 pts · #9
- 3Inoue, SatomiJPN+26.84.0 pts · #17
Top rating losers
- 1Takase, HayatoJPN-29.22.5 pts · #18
- 2Wang, MinruiJPN-28.43.0 pts · #35
- 3Matsumoto, ShinjiJPN-26.82.0 pts · #30
Biggest upsets
- R1+155 Elo gap
- R1+126 Elo gap