First League
Bulgaria
| Referee | Games |  |  | Cards per game |
|---|
| Stefan Apostolov | 5 | 27 | 4 | 6.2 (5.4 / 0.8) | |
| Volen Chinkov | 8 | 46 | 1 | 5.9 (5.8 / 0.1) | |
| Georgi Davidov | 6 | 26 | 2 | 4.6 (4.3 / 0.3) | |
| Georgi Dimitrov | 8 | 36 | 1 | 4.6 (4.5 / 0.1) | |
| Dragomir Draganov | 10 | 40 | 2 | 4.2 (4.0 / 0.2) | |
| Nedelcho Gadzhalov | 4 | 14 | 0 | 3.5 (3.5 / 0.0) | |
| Radoslav Gidzhenov | 7 | 33 | 2 | 5.0 (4.7 / 0.3) | |
| Georgi Ivanov | 5 | 16 | 0 | 3.2 (3.2 / 0.0) | |
| Georgi Kabakov | 10 | 65 | 4 | 6.9 (6.5 / 0.4) | |
| Petar Kirilov Kostadinov | 7 | 36 | 2 | 5.4 (5.1 / 0.3) | |
| Nikolay Kolev | 1 | 5 | 0 | 5.0 (5.0 / 0.0) | |
| Georgi Nikolov | 4 | 16 | 0 | 4.0 (4.0 / 0.0) | |
| Nikola Popov | 13 | 56 | 1 | 4.4 (4.3 / 0.1) | |
| Ivajilo Stoyanov | 10 | 69 | 3 | 7.2 (6.9 / 0.3) | |
| Stanislav Todorov | 10 | 46 | 2 | 4.8 (4.6 / 0.2) | |
| Stanimir Trenchev | 4 | 23 | 0 | 5.8 (5.8 / 0.0) | |
| Valdimir Valkov | 6 | 44 | 3 | 7.8 (7.3 / 0.5) | |
| Nikolay Yordanov | 10 | 68 | 3 | 7.1 (6.8 / 0.3) | |
| Valentin Zhelezov | 5 | 15 | 1 | 3.2 (3.0 / 0.2) | |
England