First League
Bulgaria
| Referee | Games |  |  | Cards per game |
|---|
| Ivo Andreev | 1 | 7 | 0 | 7.0 (7.0 / 0.0) | |
| Volen Chinkov | 7 | 36 | 2 | 5.4 (5.1 / 0.3) | |
| Georgi Davidov | 8 | 34 | 1 | 4.4 (4.3 / 0.1) | |
| Georgi Dimitrov | 5 | 33 | 3 | 7.2 (6.6 / 0.6) | |
| Dimo Dimov | 1 | 5 | 0 | 5.0 (5.0 / 0.0) | |
| Dragomir Draganov | 8 | 34 | 1 | 4.4 (4.3 / 0.1) | |
| Vladimir El-Khatib | 1 | 3 | 0 | 3.0 (3.0 / 0.0) | |
| Radoslav Gidzhenov | 6 | 28 | 2 | 5.0 (4.7 / 0.3) | |
| Georgi Ginchev | 1 | 3 | 0 | 3.0 (3.0 / 0.0) | |
| Georgi Ivanov | 7 | 28 | 0 | 4.0 (4.0 / 0.0) | |
| Georgi Kabakov | 8 | 47 | 3 | 6.3 (5.9 / 0.4) | |
| Petar Kirilov Kostadinov | 5 | 30 | 3 | 6.6 (6.0 / 0.6) | |
| Nikolay Kolev | 4 | 24 | 0 | 6.0 (6.0 / 0.0) | |
| Georgi Nikolov | 3 | 25 | 3 | 9.3 (8.3 / 1.0) | |
| Nikola Popov | 11 | 70 | 3 | 6.7 (6.4 / 0.3) | |
| Ivajilo Stoyanov | 7 | 41 | 1 | 6.0 (5.9 / 0.1) | |
| Stanislav Todorov | 8 | 36 | 3 | 4.9 (4.5 / 0.4) | |
| Stanimir Trenchev | 3 | 19 | 1 | 6.6 (6.3 / 0.3) | |
| Valdimir Valkov | 5 | 35 | 4 | 7.8 (7.0 / 0.8) | |
| Nikolay Yordanov | 6 | 38 | 4 | 7.0 (6.3 / 0.7) | |
| Ivelin Zanev | 1 | 4 | 0 | 4.0 (4.0 / 0.0) | |
| Valentin Zhelezov | 5 | 23 | 0 | 4.6 (4.6 / 0.0) | |
England