By surface
| Surface | Milen Velev | Konstantinos Effraimoglou |
|---|---|---|
| Clay | 1 | 0 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1990-05-04 | ATP | Davis Cup G2 QF: BUL vs GRE | Round Robin | Clay | Milen Velev | 6-2 | 7-5 |
| Surface | Milen Velev | Konstantinos Effraimoglou |
|---|---|---|
| Clay | 1 | 0 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1990-05-04 | ATP | Davis Cup G2 QF: BUL vs GRE | Round Robin | Clay | Milen Velev | 6-2 | 7-5 |