Koji Morikawa
🚩Japan assistant referee · 1 competition
Koji Morikawa is a Japan football assistant referee. They have officiated as assistant referee, fourth official and AVAR. In total they have 11 tracked match appearances across 1 competition, broken down as 7× AR, 1× 4th Official, 3× 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 | 11 | 7 | 1 | 3 |
Career Milestones
Career-firsts tracked in our database.
Match Activity
11 matches · 1 yearTop 46% 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.
- 1Akihiko IkeuchiReferee · 36 in leagueNever
- 2Futoshi NakamuraReferee · 35 in leagueNever
- 3Hiroki KasaharaReferee · 30 in leagueNever
- 4Koji TakasakiReferee · 24 in leagueNever
- 5Ryō TanimotoReferee · 22 in leagueNever
- 6Yūsuke OhashiReferee · 21 in leagueNever
- 7Shū KawamataReferee · 19 in leagueNever
- 8Keigo SendachiReferee · 19 in leagueNever
Explore the full officiating network — partnerships, observers, clubs and venues — on the network analysis page.
Top Destinations
- 1Tokyo3×
- 2Kashima2×
- 3Okayama1×
- 4Yokohama1×
- 5Kashiwa1×
- 6Osaka1×
- 7Kawasaki1×
Venues Visited(7)
Stadiums Koji Morikawa has officiated at. Filter by competition or season to focus the map.
7 venues · 10 matches
Tokyo StadiumTokyo3 matches
Kashima Soccer StadiumKashima2 matches
City Light StadiumOkayama1 match
Nissan StadiumYokohama1 match
Sankyo Frontier Kashiwa StadiumKashiwa1 match
Suita City Football StadiumOsaka1 match
Uvance Todoroki Stadium by FujitsuKawasaki1 match
Frequently Asked Questions
What is Koji Morikawa's primary role?▾
Koji Morikawa is a Japan football assistant referee, and has also worked as fourth official and AVAR.
How many matches has Koji Morikawa officiated?▾
Koji Morikawa has 11 tracked match appearances across 1 competition (7× AR, 1× 4th Official, 3× AVAR).
Which competitions does Koji Morikawa work in?▾
Koji Morikawa has most often officiated in J1 League.
Is Koji Morikawa a FIFA referee?▾
Koji Morikawa is not currently recorded as a FIFA badge holder in our data.
Which teams has Koji Morikawa officiated most?▾
Among domestic clubs, Koji Morikawa has most frequently officiated matches involving Gamba Osaka, FC Tokyo and Kashiwa Reysol.
Which cities has Koji Morikawa officiated in most?▾
Koji Morikawa has officiated most often in Tokyo, Kashima, Okayama and Yokohama, with Tokyo Stadium the most-visited stadium.
Organizer reviews
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<a href="https://www.referee.observer/referee/jpn/koji-morikawa" title="Koji Morikawa — referee statistics on Referee.Observer">Koji Morikawa — referee profile & stats on Referee.Observer</a>Referee.Observer is built by a community of referees from open, public data sources — so some details may be out of date or wrong.