J1 League
Japan
| Referee | Games |  |  | Cards per game |
|---|
| Yusuke Araki | 13 | 39 | 2 | 3.2 (3.0 / 0.2) | |
| Florian Badstübner | 3 | 7 | 0 | 2.3 (2.3 / 0.0) | |
| Ivan Barton | 3 | 8 | 0 | 2.7 (2.7 / 0.0) | |
| Ming Fu | 2 | 3 | 0 | 1.5 (1.5 / 0.0) | |
| Koichiro Fukushima | 12 | 16 | 1 | 1.4 (1.3 / 0.1) | |
| Jumpei Iida | 10 | 21 | 0 | 2.1 (2.1 / 0.0) | |
| Akihiko Ikeuchi | 15 | 26 | 0 | 1.7 (1.7 / 0.0) | |
| Yoshiro Imamura | 11 | 27 | 1 | 2.6 (2.5 / 0.1) | |
| Robert Jones | 1 | 3 | 0 | 3.0 (3.0 / 0.0) | |
| Atsushi Kamimura | 10 | 25 | 1 | 2.6 (2.5 / 0.1) | |
| Hiroki Kasahara | 11 | 30 | 1 | 2.8 (2.7 / 0.1) | |
| Shu Kawamata | 10 | 20 | 1 | 2.1 (2.0 / 0.1) | |
| Hiroyuki Kimura | 13 | 30 | 0 | 2.3 (2.3 / 0.0) | |
| Koei Koya | 11 | 27 | 1 | 2.6 (2.5 / 0.1) | |
| Lukasz Kuzma | 4 | 11 | 0 | 2.8 (2.8 / 0.0) | |
| Takafumi Mikuriya | 15 | 29 | 1 | 2.0 (1.9 / 0.1) | |
| Koki Nagamine | 9 | 20 | 0 | 2.2 (2.2 / 0.0) | |
| Futoshi Nakamura | 14 | 36 | 1 | 2.7 (2.6 / 0.1) | |
| Yusuke Ohashi | 8 | 9 | 0 | 1.1 (1.1 / 0.0) | |
| Takuto Okabe | 7 | 16 | 0 | 2.3 (2.3 / 0.0) | |
| Martin Petersen | 3 | 7 | 0 | 2.3 (2.3 / 0.0) | |
| Keigo Sendachi | 8 | 25 | 0 | 3.1 (3.1 / 0.0) | |
| Hayato Shimizu | 10 | 23 | 1 | 2.4 (2.3 / 0.1) | |
| Koji Takasaki | 11 | 28 | 1 | 2.6 (2.5 / 0.1) | |
| Ryo Tanimoto | 12 | 24 | 0 | 2.0 (2.0 / 0.0) | |
| Masuya Ueda | 13 | 41 | 1 | 3.3 (3.2 / 0.1) | |
| Naoto Uehara | 1 | 1 | 0 | 1.0 (1.0 / 0.0) | |
| Nathan Verboomen | 4 | 13 | 0 | 3.3 (3.3 / 0.0) | |
| Yudai Yamamoto | 13 | 34 | 0 | 2.6 (2.6 / 0.0) | |
| Yoshimi Yamashita | 5 | 3 | 0 | 0.6 (0.6 / 0.0) | |
Germany