By surface
| Surface | Ingo Buding | Stojan Velev |
|---|
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1968-05-17 | ATP | Davis Cup EUR QF: BUL vs FRG | Round Robin | — | Ingo Buding | 6-4 | 6-1 | 6-3 |
| Surface | Ingo Buding | Stojan Velev |
|---|
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1968-05-17 | ATP | Davis Cup EUR QF: BUL vs FRG | Round Robin | — | Ingo Buding | 6-4 | 6-1 | 6-3 |