First League
Bulgaria
| Referee | Games |  |  | Cards per game |
|---|
| Stefan Apostolov | 9 | 63 | 1 | 7.1 (7.0 / 0.1) | |
| Volen Chinkov | 9 | 56 | 2 | 6.4 (6.2 / 0.2) | |
| Georgi Davidov | 9 | 46 | 2 | 5.3 (5.1 / 0.2) | |
| Georgi Dimitrov | 2 | 16 | 0 | 8.0 (8.0 / 0.0) | |
| Dragomir Draganov | 12 | 39 | 2 | 3.5 (3.3 / 0.2) | |
| Nedelcho Gadzhalov | 5 | 19 | 0 | 3.8 (3.8 / 0.0) | |
| Radoslav Gidzhenov | 5 | 22 | 2 | 4.8 (4.4 / 0.4) | |
| Georgi Ivanov | 4 | 13 | 1 | 3.6 (3.3 / 0.3) | |
| Georgi Kabakov | 11 | 78 | 2 | 7.3 (7.1 / 0.2) | |
| Rosen Kirilov | 1 | 6 | 0 | 6.0 (6.0 / 0.0) | |
| Petar Kirilov Kostadinov | 9 | 45 | 4 | 5.4 (5.0 / 0.4) | |
| Nikola Popov | 13 | 54 | 3 | 4.4 (4.2 / 0.2) | |
| Stanislav Stavrov | 6 | 28 | 1 | 4.9 (4.7 / 0.2) | |
| Ivajilo Stoyanov | 9 | 46 | 4 | 5.5 (5.1 / 0.4) | |
| Stanislav Todorov | 14 | 62 | 1 | 4.5 (4.4 / 0.1) | |
| Stanimir Trenchev | 2 | 4 | 0 | 2.0 (2.0 / 0.0) | |
| Valdimir Valkov | 9 | 31 | 0 | 3.4 (3.4 / 0.0) | |
| Nikolay Yordanov | 11 | 53 | 1 | 4.9 (4.8 / 0.1) | |
| Valentin Zhelezov | 5 | 29 | 1 | 6.0 (5.8 / 0.2) | |
England