The Japan Open 2025 will take place from September 19 to September 23 in Tokyo, Japan. This tournament is separated into 2 categories – Masters and Challengers. The Masters section is a 9-round Swiss system tournament with time control of 90 min + 30 sec/move. For more events from Japan, check out The Asian Chess Calendar, which is part of The Chess Calendar.
The top-seeded players are GM Samvel Ter-Sahakyan (2611), GM Vaibhav Suri (2568), GM Paul Velten (2536), GM Susanto Megaranto (2483), GM Swayams Mishra (2446), IM Junhyeok Lee (2435), IM Thanh Tu Tran (2412), IM Arif Abdul Hafiz (2386), IM Zhaoqi Liu (2364), FM Mirai Aoshima (2354), FM Shou Otsuka (2329), IM Shinya Kojima (2318), IM Ryosuke Nanjo (2311), FM KaiLin Chen (2264), FM Sehyun Kwon (2253), CM Michael Owen (2222), Muxi Chen (2189), FM Kohei Yamada (2186), Samuel Song (2175), CM Kan Nakahara (2171). Scroll down for the full participants list.
Categories: Challengers
More Asian events: 23rd RCC International Fide Rated Classical Cup / 24th RCC International Fide Rated Rapid Cup / 25th RCC International Fide Rated Blitz Cup / Tsaghkadzor Open 2025 / Dasman Classical Chess Championship 2025 / Sukanun Chess 2025 / 20th Dato Arthur Tan Malaysian Open Chess Championship
Japan Open 2025 Masters Participants
No.
Name
FED
RtgI
1
GM
Ter-Sahakyan, Samvel
ARM
2611
2
GM
Vaibhav, Suri
IND
2568
3
GM
Velten, Paul
FRA
2536
4
GM
Megaranto, Susanto
INA
2483
5
GM
Swayams, Mishra
IND
2446
6
IM
Lee, Junhyeok
KOR
2435
7
IM
Tran, Thanh Tu
JPN
2412
8
IM
Hafiz, Arif Abdul
INA
2386
9
IM
Liu, Zhaoqi
CHN
2364
10
FM
Aoshima, Mirai
JPN
2354
11
FM
Otsuka, Shou
JPN
2329
12
IM
Kojima, Shinya
JPN
2318
13
IM
Nanjo, Ryosuke
JPN
2311
14
FM
Chen, KaiLin
CHN
2264
15
FM
Kwon, Sehyun
KOR
2253
16
CM
Owen, Michael
INA
2222
17
Chen, Muxi
CHN
2189
18
FM
Yamada, Kohei
JPN
2186
19
Song, Samuel
CAN
2175
20
CM
Nakahara, Kan
JPN
2171
21
Moritani, Sho
JPN
2138
22
Sanjay, Vasu
SGP
2116
23
FM
Jones, Stephen
JPN
2107
24
Higashino, Tetsuo
JPN
2103
25
CM
Averbukh, Alex
JPN
2097
26
Okuno, Rion
JPN
2069
27
CM
Matsuo, Tomohiko
JPN
2066
28
Yonemitsu, Kohei
JPN
2053
29
Nakamura, Naohiro
JPN
2047
30
Nagataki, Kota
JPN
2037
31
Jiang, Likai
JPN
2030
32
Shioguchi, Tatsuya
JPN
2027
33
Gu, In-Jung
KOR
2023
34
Martin, Axel
FRA
2019
35
Furuya, Masahiro
JPN
2011
36
Yamamoto, Soichiro
JPN
2003
37
Matsunaga, Toma
JPN
2002