| Referee | Country |  |
W | D | L |  |
 |
 |
 |
|---|---|---|---|---|---|---|---|---|---|
| Georgi Davidov |
|
2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
| Ivo Andreev |
|
1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 |
| Georgi Ginchev |
|
1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
| Vasil Minev |
|
1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
| Ventsislav Mitrev |
|
1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
| Nikola Popov |
|
1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Valentin Zhelezov |
|
1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
Nigeria