Ryo Nakazawa
🚩Japan assistant referee · 1 competition
Ryo Nakazawa is a Japan football assistant referee. They have officiated as assistant referee, fourth official and AVAR. In total they have 12 tracked match appearances across 1 competition, broken down as 7× AR, 1× 4th Official, 4× AVAR. Most-worked competitions include J1 League. This profile is built from official match-appointment data.
Top Competitions
Season-by-Season Activity
| Season | Total | AR | 4th | AVAR |
|---|---|---|---|---|
| 2026/27 | 12 | 7 | 1 | 4 |
Career Milestones
Career-firsts tracked in our database.
Match Activity
12 matches · 1 yearTop 44% among Japan officials
Peer Benchmark
Median in Japan: 10 matches · 1 season
Recent Matches
Most-Officiated Teams
Least-Officiated Teams
Clubs in their current competition, ordered by how seldom this official has worked their matches.
Each number = matches officiated involving that club · 0× = never officiated them
Other officials from Japan
Career Events
Career events (UEFA courses, awards) will appear here when available.
Season Reports
Rarely Works With
Active officials in J1 League they have shared fewest matches with.
- 1Jumpei IidaReferee · 32 in leagueNever
- 2Kōei KoyaReferee · 30 in leagueNever
- 3Yūsuke OhashiReferee · 21 in leagueNever
- 4Keigo SendachiReferee · 19 in leagueNever
- 5Shū KawamataReferee · 19 in leagueNever
- 6Yūdai YamamotoReferee · 18 in leagueNever
- 7Yoshirō ImamuraReferee · 15 in leagueNever
- 8Yuzo SutaniReferee · 14 in leagueNever
Explore the full officiating network — partnerships, observers, clubs and venues — on the network analysis page.
Top Destinations
- 1Tokyo4×
- 2Hakata-ku, Fukuoka1×
- 3Shimzu1×
- 4Kashima1×
- 5Kobe1×
- 6Saitama1×
- 7Kyoto1×
- 8Toyota1×
- 9Osaka1×
Venues Visited(10)
Stadiums Ryo Nakazawa has officiated at. Filter by competition or season to focus the map.
10 venues · 12 matches
Japan National StadiumTokyo2 matches
Tokyo StadiumTokyo2 matches
Best Denki StadiumHakata-ku, Fukuoka1 match
IAI Stadium NihondairaShimzu1 match
Kashima Soccer StadiumKashima1 match
Kobe Wing StadiumKobe1 match
Saitama Stadium 2002Saitama1 match
Sanga Stadium by KyoceraKyoto1 match
Toyota Stadium (Japan)Toyota1 match
Yodoko Sakura StadiumOsaka1 match
Frequently Asked Questions
What is Ryo Nakazawa's primary role?▾
Ryo Nakazawa is a Japan football assistant referee, and has also worked as fourth official and AVAR.
How many matches has Ryo Nakazawa officiated?▾
Ryo Nakazawa has 12 tracked match appearances across 1 competition (7× AR, 1× 4th Official, 4× AVAR).
Which competitions does Ryo Nakazawa work in?▾
Ryo Nakazawa has most often officiated in J1 League.
Is Ryo Nakazawa a FIFA referee?▾
Ryo Nakazawa is not currently recorded as a FIFA badge holder in our data.
Which teams has Ryo Nakazawa officiated most?▾
Among domestic clubs, Ryo Nakazawa has most frequently officiated matches involving Kashima Antlers, Tokyo Verdy and Avispa Fukuoka.
Which cities has Ryo Nakazawa officiated in most?▾
Ryo Nakazawa has officiated most often in Tokyo, Hakata-ku, Fukuoka, Shimzu and Kashima, with Japan National Stadium the most-visited stadium.
Organizer reviews
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