First League
Bulgaria
| Referee | Games |  |  | Cards per game |
|---|
| Stoyan Arsov | 1 | 2 | 0 | 2.0 (2.0 / 0.0) | |
| Volen Chinkov | 3 | 17 | 3 | 6.7 (5.7 / 1.0) | |
| Georgi Davidov | 2 | 11 | 0 | 5.5 (5.5 / 0.0) | |
| Dimitar Dimitrov | 2 | 8 | 0 | 4.0 (4.0 / 0.0) | |
| Dragomir Draganov | 3 | 9 | 2 | 3.7 (3.0 / 0.7) | |
| Krasen Georgiev | 2 | 11 | 0 | 5.5 (5.5 / 0.0) | |
| Radoslav Gidzhenov | 3 | 15 | 2 | 5.7 (5.0 / 0.7) | |
| Georgi Ginchev | 1 | 9 | 0 | 9.0 (9.0 / 0.0) | |
| Mariyan Grebencharski | 2 | 9 | 0 | 4.5 (4.5 / 0.0) | |
| Hristiyana Guteva | 1 | 6 | 0 | 6.0 (6.0 / 0.0) | |
| Georgi Kabakov | 3 | 16 | 1 | 5.6 (5.3 / 0.3) | |
| Kristiyan Kolev | 2 | 10 | 0 | 5.0 (5.0 / 0.0) | |
| Lyuboslav Lyubomirov | 1 | 5 | 1 | 6.0 (5.0 / 1.0) | |
| Vasil Minev | 2 | 9 | 1 | 5.0 (4.5 / 0.5) | |
| Ventislav Mitrev | 1 | 3 | 0 | 3.0 (3.0 / 0.0) | |
| Mihael Pavlov | 1 | 4 | 0 | 4.0 (4.0 / 0.0) | |
| Nikola Popov | 3 | 16 | 1 | 5.6 (5.3 / 0.3) | |
| Stanimir Trenchev | 2 | 8 | 0 | 4.0 (4.0 / 0.0) | |
| Martin Velikov | 2 | 8 | 1 | 4.5 (4.0 / 0.5) | |
| Valentin Zhelezov | 2 | 11 | 0 | 5.5 (5.5 / 0.0) | |
Germany
