Referee
Koei Koya
- Nationality
- Japan
- Matches
- 57In our archive since
- J1 League31
- J2 League14
- Emperor Cup6
- J-League Cup6
This season (2027)
5Matches
3.20Yellow cards per match5 matches
0.00Red cards per match5 matches
0.00Penalties per match5 matches
Career
57Matches
2.68Yellow cards per match31 matches
0.16Red cards per match31 matches
0.16Penalties per match31 matches
21.74Fouls per match
Strictness rankingJ1 League
Koei Koya shows 2.65 yellow cards per match, 4% above the league average (2.55): number 7 of 20 referees.
- 1Atsushi Uemura9 matches3.67
- 2Futoshi Nakamura21 matches3.38
- 3K. Takasaki19 matches3.32
- 4Hiroyuki Kimura22 matches3.18
- 5H. Kasahara20 matches3.15
- 6Daichi Shiino10 matches2.80
- 7Koei Koya20 matches2.65
- 8Jumpei Iida13 matches2.62
- 9Koki Nagamine13 matches2.54
- 10Hayato Shimizu19 matches2.53
- 11Masuya Ueda21 matches2.33
- 12Akihiko Ikeuchi25 matches2.32
- 13Takafumi Mikuriya15 matches2.27
- 14Koichiro Fukushima24 matches2.25
- 15R. Tanimoto16 matches2.25
- 16Yuzo Sutani18 matches2.00
- 17A. Kamimura16 matches2.00
- 18Yoshimi Yamashita9 matches2.00
- 19Y. Araki8 matches2.00
- 20Yusuke Ohashi15 matches1.87
League average 2.55
Cards per matchLast 17 matches with card data
- Yellow cards
- Red cards
Results in his matchesFrom 57 finished matches
- Home win49%
- Draw23%
- Away win28%
Home / awayYellow cards · 31 matches
- Home teams38 yellow cards · 46%
- Away teams45 yellow cards · 54%
Away teams saw 18% more yellow cards.
By competition
| Competition | Matches | Yellow / match | Red cards | Penalties |
|---|---|---|---|---|
| J1 League | 31 | 2.68 | 5 | 5 |
| J2 League | 14 | – | – | – |
| Emperor Cup | 6 | – | – | – |
| J-League Cup | 6 | – | – | – |
Season by season
| Season | Competition | Matches | Yellow cards per match | Red cards per match | Penalties per match |
|---|---|---|---|---|---|
| 2027 | J.League | 5 | 3.20 | 0.00 | 0.00 |
| 2026 | J.League 2 | 3 | – | – | – |
| J.League | 13 | 2.54 | 0.31 | 0.31 | |
| 2025 | J.League | 13 | 2.62 | 0.08 | 0.08 |
| J.League 2 | 4 | – | – | – | |
| J.League Cup | 4 | – | – | – | |
| Emperor Cup | 3 | – | – | – | |
| 2024 | J.League 2 | 7 | – | – | – |
| Emperor Cup | 3 | – | – | – | |
| J.League Cup | 2 | – | – | – |
Latest matches
- J.LeagueSanfrecce Hiroshima3Kyoto Sanga FC02Yellow cards
- J.League 2Tegevajaro Miyazaki1Omiya Ardija1
- J.LeagueYokohama F. Marinos2Mito HollyHock05Yellow cards
- J.League 2FC Imabari1Sagan Tosu0
- J.LeagueVissel Kobe3V-Varen Nagasaki12Yellow cards
- J.LeagueKyoto Sanga FC2Avispa Fukuoka14Yellow cards
- J.League 2Vanraure Hachinohe0Vegalta Sendai2
- J.LeagueJEF United Ichihara Chiba0FC Machida Zelvia43Yellow cards
- J.LeagueJEF United Ichihara Chiba1Avispa Fukuoka21Penalties
- J.LeagueShimizu S-Pulse1Yokohama F. Marinos11Yellow cards
- J.LeagueShimizu S-Pulse1Avispa Fukuoka15Yellow cards
- J.LeagueV-Varen Nagasaki1Nagoya Grampus Eight21Yellow cards
- J.LeagueUrawa Red Diamonds2Yokohama F. Marinos32Yellow cards
- J.LeagueSanfrecce Hiroshima1Shimizu S-Pulse11Yellow cards
- J.LeagueMito HollyHock1Kashima Antlers15Yellow cards1Red cards1Penalties
- J.LeagueCerezo Osaka1Vissel Kobe13Yellow cards
- J.LeagueKashiwa Reysol0FC Machida Zelvia12Yellow cards
- J.LeagueFC Tokyo3Yokohama F. Marinos02Yellow cards
- J.LeagueUrawa Red Diamonds2Kashima Antlers32Yellow cards1Penalties
- J.LeagueShimizu S-Pulse1Vissel Kobe05Yellow cards1Red cards1Penalties
