First League
Bulgaria
| Referee | Games |  |  | Cards per game |
|---|
| Stefan Apostolov | 4 | 22 | 3 | 6.3 (5.5 / 0.8) | |
| Volen Chinkov | 5 | 31 | 0 | 6.2 (6.2 / 0.0) | |
| Georgi Davidov | 4 | 19 | 1 | 5.1 (4.8 / 0.3) | |
| Georgi Dimitrov | 4 | 14 | 0 | 3.5 (3.5 / 0.0) | |
| Dragomir Draganov | 6 | 23 | 1 | 4.0 (3.8 / 0.2) | |
| Nedelcho Gadzhalov | 2 | 10 | 0 | 5.0 (5.0 / 0.0) | |
| Radoslav Gidzhenov | 4 | 15 | 1 | 4.1 (3.8 / 0.3) | |
| Georgi Ivanov | 3 | 9 | 0 | 3.0 (3.0 / 0.0) | |
| Georgi Kabakov | 9 | 61 | 3 | 7.1 (6.8 / 0.3) | |
| Petar Kirilov Kostadinov | 4 | 25 | 2 | 6.8 (6.3 / 0.5) | |
| Nikolay Kolev | 1 | 5 | 0 | 5.0 (5.0 / 0.0) | |
| Georgi Nikolov | 1 | 5 | 0 | 5.0 (5.0 / 0.0) | |
| Nikola Popov | 8 | 34 | 1 | 4.4 (4.3 / 0.1) | |
| Ivajilo Stoyanov | 7 | 43 | 1 | 6.2 (6.1 / 0.1) | |
| Stanislav Todorov | 6 | 25 | 1 | 4.4 (4.2 / 0.2) | |
| Stanimir Trenchev | 3 | 15 | 0 | 5.0 (5.0 / 0.0) | |
| Valdimir Valkov | 4 | 36 | 2 | 9.5 (9.0 / 0.5) | |
| Nikolay Yordanov | 6 | 35 | 3 | 6.3 (5.8 / 0.5) | |
| Valentin Zhelezov | 3 | 11 | 0 | 3.7 (3.7 / 0.0) | |
England