| Referee | Country |  |
W | D | L |  |
 |
 |
 |
|---|---|---|---|---|---|---|---|---|---|
| Gastón Castro |
|
2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 |
| Roque Cerullo |
|
1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| Luis da Rosa |
|
1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| Vicente Llobregat |
|
1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
| Carlos Montalván |
|
1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| Teodoro Nitti |
|
1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| César Orosco |
|
1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Octavio Sierra |
|
1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| Juan Silvagno |
|
1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
Paraguay