By surface
| Surface | Constantin Popovici | Viorel Marcu |
|---|
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1968-09-08 | ATP | Mamaia | Quarterfinal | — | Viorel Marcu | 6-0 | 4-6 | 4-6 |
| Surface | Constantin Popovici | Viorel Marcu |
|---|
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1968-09-08 | ATP | Mamaia | Quarterfinal | — | Viorel Marcu | 6-0 | 4-6 | 4-6 |