Tokai Open 2026
Open SwissStandard
49 players participated in this 5-round tournament, held from 11 Jan 2026 to 12 Jan 2026 in Nagoya, Japan. 4 titled players from 4 federations. Top 10 Elo average was 2007, and top seed was Shinya Kojima (🇯🇵 JPN, IM, 2303).
Shinya Kojima (🇯🇵 JPN, IM, 2303) won with 5.0/5, ahead of Tosei Yamaguchi (4.0) and Sameer Sharma (4.0). Kojima broke clear in the final round.
The biggest upset came in round 3: Vedat Erkoc (1850) beat Akira Watanabe (FM, 2229), a +379-point gap.
Location
🇯🇵Nagoya, Japan
Dates
11 Jan 2026 → 12 Jan 2026
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 5 rounds
Titled players · 4
IM×1
FM×1
WCM×2
Federations · 4 represented
🇯🇵Japan×43
🇹🇼Chinese Taipei×1
🇧🇷Brazil×1
🇬🇧Scotland×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 5 roundsIM Shinya Kojima led from R5; +1.0-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.
Co-leaders
23
9
5
2
1
R5–R5 · LEAD HELD
IM Shinya Kojima never relinquished the lead after R5; final gap +1.0 over the runner-up.
R3 · HEAD-TO-HEAD · WINNER VS 2ND
IM Shinya Kojima beat Sameer Sharma (White).
WIN STREAKS · 2 top finishers
IM Shinya Kojima 5 wins (R1–R5)Masashi Aso 3 wins (R3–R5)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1IMShinya Kojima | * | 1 | — | 1 |
| 2Sameer Sharma | 0 | * | — | — |
| 3Masashi Aso | — | — | * | — |
| 4Satoshi Tanaka | 0 | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Kojima, ShinyaIM | 2303 | JPN | +37B | +14N | +3B | +5N | +2B | 5.0 | 15.0 | 16.5 | 16.50 | 2706 | +4.1 |
| 2 | Yamaguchi, Tosei | 1920 | JPN | +19B | +30N | +4B | +11N | −1N | 4.0 | 15.0 | 17.0 | 12.00 | 2085 | +18.8 |
| 3 | Sharma, Sameer | 1871 | JPN | +16N | +22B | −1N | +24B | +11B | 4.0 | 13.5 | 16.0 | 11.00 | 2069 | +48.8 |
| 4 | Mizumoto, Takahiro | 1769 | JPN | +32N | +9B | −2N | +17B | +13N | 4.0 | 13.5 | 15.5 | 11.50 | 2057 | +22.8 |
| 5 | Tanaka, Satoshi | 1879 | JPN | +42B | +41N | +23B | −1B | +8N | 4.0 | 12.0 | 13.0 | 8.00 | 2061 | +21.0 |
| 6 | Aso, Masashi | 0 | JPN | +25B | −15N | +30B | +33N | +12B | 4.0 | 10.5 | 12.5 | 9.50 | 1911 | 0.0 |
| 7 | Noguchi, Koji | 1989 | JPN | +29N | −11B | +21N | =18B | +25N | 3.5 | 11.5 | 14.0 | 9.50 | 1915 | -8.0 |
| 8 | Erkoc, Vedat | 1850 | JPN | +38B | +31N | +26B | =12N | −5B | 3.5 | 11.5 | 13.0 | 7.50 | 1964 | +11.2 |
| 9 | Scott, Tyler | 1987 | JPN | +35B | −4N | +41B | =20N | +23B | 3.5 | 11.5 | 12.5 | 7.00 | 1886 | -10.2 |
| 10 | Shakuya, Keita | 1894 | JPN | +40N | =27B | −11N | +22B | +28N | 3.5 | 10.5 | 12.0 | 7.75 | 1850 | -7.2 |
| 11 | Ferreira, Raphael Suzuki | 1764 | BRA | +34B | +7N | +10B | −2B | −3N | 3.0 | 15.0 | 17.0 | 9.00 | 1919 | +32.8 |
| 12 | Kanda, Daigo | 1819 | JPN | +13N | =24B | +27N | =8B | −6N | 3.0 | 13.0 | 15.5 | 8.50 | 1999 | +14.2 |
| 13 | Shirakawa, Mizuki | 0 | JPN | −12B | +36N | +37B | +15N | −4B | 3.0 | 12.0 | 13.5 | 6.50 | 1802 | 0.0 |
| 14 | Tokuni, Shun | 1842 | JPN | +44B | −1B | =22N | =23N | +31B | 3.0 | 12.0 | 13.0 | 5.50 | 1762 | -8.8 |
| 15 | Kinoshita, Akira | 1882 | JPN | =39N | +6B | =24N | −13B | +32N | 3.0 | 11.5 | 13.0 | 8.00 | 1807 | -3.0 |
| 16 | Wang, Minrui | 1553 | JPN | −3B | =25N | +39N | +27B | =24N | 3.0 | 11.5 | 13.0 | 6.50 | 1874 | +78.0 |
| 17 | Kuroda, Yunosuke | 1890 | JPN | +43B | −23N | +19B | −4N | +35B | 3.0 | 11.5 | 12.5 | 6.00 | 1759 | -15.6 |
| 18 | Takashima, Bunji | 1800 | JPN | +45B | −26N | +31B | =7N | =20B | 3.0 | 11.0 | 11.0 | 5.25 | 1887 | +9.2 |
| 19 | Furuse, Mizuki | 1628 | JPN | −2N | +46B | −17N | +30N | +33B | 3.0 | 11.0 | 11.0 | 4.00 | 1881 | +48.8 |
| 20 | Nagai, Toshiyuki | 1846 | JPN | −22N | +42B | +40N | =9B | =18N | 3.0 | 10.5 | 11.5 | 5.75 | 1778 | -6.8 |
| 21 | Takayasu, Melody | 1718 | JPN | −26B | +45N | −7B | +43N | +34B | 3.0 | 9.0 | 9.0 | 3.00 | 1782 | +2.2 |
| 22 | Itokazu, Antonio | 1535 | JPN | +20B | −3N | =14B | −10N | +37B | 2.5 | 13.5 | 15.0 | 6.00 | 1835 | +70.0 |
| 23 | Kojima, NatsumiWCM | 1743 | JPN | +48N | +17B | −5N | =14B | −9N | 2.5 | 13.5 | 13.5 | 4.50 | 1813 | +6.4 |
| 24 | Matsunaga, Toma | 2021 | JPN | +36B | =12N | =15B | −3N | =16B | 2.5 | 13.0 | 15.0 | 6.50 | 1782 | -57.2 |
| 25 | Yamamichi, Atsuya | 1842 | JPN | −6N | =16B | +32N | +49B | −7B | 2.5 | 12.5 | 12.5 | 3.50 | 1578 | -25.6 |
| 26 | Watanabe, AkiraFM | 2229 | JPN | +21N | +18B | −8N | =28B | F | 2.5 | 12.0 | 12.0 | 7.25 | 1931 | -23.4 |
| 27 | Takayasu, Nobuyuki | 1751 | JPN | +47B | =10N | −12B | −16N | +38B | 2.5 | 11.0 | 11.0 | 3.25 | 1617 | -14.8 |
| 28 | Araki, Dai | 1834 | JPN | −31B | +38N | +43B | =26N | −10B | 2.5 | 9.5 | 10.5 | 3.75 | 1916 | +7.6 |
| 29 | Sawamura, Tetsushi | 1704 | JPN | −7B | +34N | −33B | =38N | +49N | 2.5 | 9.0 | 9.0 | 2.75 | 1557 | -11.2 |
| 30 | Fujisawa, Hiroshi | 1760 | JPN | +46N | −2B | −6N | −19B | +40N | 2.0 | 12.5 | 12.5 | 1.50 | 1598 | -26.4 |
| 31 | Amenomori, Kentaro | 0 | JPN | +28N | −8B | −18N | +41B | −14N | 2.0 | 12.0 | 13.0 | 3.50 | 1722 | 0.0 |
| 32 | Sirimalla, Srivatsa | 0 | JPN | −4B | +35N | −25B | +36N | −15B | 2.0 | 11.5 | 13.5 | 4.00 | 1706 | 0.0 |
| 33 | Higashishiba, Teruomi | 1954 | JPN | −41N | +39B | +29N | −6B | −19N | 2.0 | 11.0 | 12.0 | 4.00 | 1642 | -28.8 |
| 34 | Watanabe, Keisuke | 0 | JPN | −11N | −29B | +42N | +39B | −21N | 2.0 | 10.0 | 11.0 | 2.50 | 1602 | 0.0 |
| 35 | Zhang, Yicheng | 1684 | JPN | −9N | −32B | +46N | +44B | −17N | 2.0 | 9.5 | 9.5 | 1.00 | 1676 | -1.6 |
| 36 | Donaldson, Sheldon | 1716 | JPN | −24N | −13B | +45N | −32B | +44N | 2.0 | 8.5 | 8.5 | 1.00 | 1774 | +2.2 |
| 37 | Akai, Kiyotaka | 1724 | JPN | −1N | +44B | −13N | =40B | −22N | 1.5 | 12.0 | 13.0 | 1.75 | 1615 | -14.4 |
| 38 | Kumasaka, Akiho | 1548 | JPN | −8N | −28B | +48N | =29B | −27N | 1.5 | 11.0 | 11.0 | 1.25 | 1463 | -13.6 |
| 39 | Matsuyama, Takefumi | 1593 | JPN | =15B | −33N | −16B | −34N | +42B | 1.5 | 10.0 | 11.0 | 2.50 | 1657 | +6.8 |
| 40 | Toyota, Yusuke | 1620 | JPN | −10B | +47N | −20B | =37N | −30B | 1.5 | 10.0 | 10.0 | 0.75 | 1484 | -11.0 |
| 41 | Uegaki, Haruo | 1643 | SCO | +33B | −5B | −9N | −31N | F | 1.0 | 11.5 | 12.5 | 2.00 | 1815 | +21.6 |
| 42 | Inukai, Kazunori | 1588 | JPN | −5N | −20N | −34B | +46B | −39N | 1.0 | 10.5 | 10.5 | 0.00 | 973 | -32.8 |
| 43 | Wong, Linda JaneWCM | 1614 | TPE | −17N | +48B | −28N | −21B | F | 1.0 | 9.5 | 9.5 | 0.00 | 1015 | -15.0 |
| 44 | Yoshizawa, Kazufumi | 1527 | JPN | −14N | −37N | +47B | −35N | −36B | 1.0 | 8.5 | 8.5 | 0.00 | 941 | -37.2 |
| 45 | FIDE 7008414 | 0 | — | −18N | −21B | −36B | F | F | 0.0 | 8.0 | 8.0 | 0.00 | 945 | 0.0 |
| 46 | Watanabe, Satoru | 0 | JPN | −30B | −19N | −35B | −42N | F | 0.0 | 8.0 | 8.0 | 0.00 | 865 | 0.0 |
| 47 | Atre, Shreyas | 0 | JPN | −27N | −40B | −44N | F | F | 0.0 | 5.0 | 5.0 | 0.00 | 833 | 0.0 |
| 48 | FIDE 7008317 | 0 | — | −23B | −43N | −38B | F | F | 0.0 | 5.0 | 5.0 | 0.00 | 835 | 0.0 |
| 49 | FIDE 7006683 | 0 | — | F | F | F | −25N | −29B | 0.0 | 5.0 | 5.0 | 0.00 | 973 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Wang, MinruiJPN+78.03.0 pts · #9
- 2Itokazu, AntonioJPN+70.02.5 pts · #15
- 3Sharma, SameerJPN+48.84.0 pts · #2
Top rating losers
- 1Matsunaga, TomaJPN-57.22.5 pts · #13
- 2Yoshizawa, KazufumiJPN-37.21.0 pts · #45
- 3Inukai, KazunoriJPN-32.81.0 pts · #47
Biggest upsets
- R3+379 Elo gap
- R5+326 Elo gap
- R1+311 Elo gap