By surface
| Surface | Marcos Ondruska | Milen Velev |
|---|---|---|
| Clay | 0 | 1 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1993-07-16 | ATP | Davis Cup G2 QF: BUL vs RSA | Round Robin | Clay | Milen Velev | 4-6 | 4-6 | 6-1 | 1-6 |
| Surface | Marcos Ondruska | Milen Velev |
|---|---|---|
| Clay | 0 | 1 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1993-07-16 | ATP | Davis Cup G2 QF: BUL vs RSA | Round Robin | Clay | Milen Velev | 4-6 | 4-6 | 6-1 | 1-6 |