By surface
| Surface | Mark Knowles | Juan Carlos Bianchi |
|---|---|---|
| Hard | 1 | 0 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1989-02-03 | ATP | Davis Cup G2 QF: BAH vs VEN | Round Robin | Hard | Mark Knowles | 6-3 | 6-4 |
| Surface | Mark Knowles | Juan Carlos Bianchi |
|---|---|---|
| Hard | 1 | 0 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1989-02-03 | ATP | Davis Cup G2 QF: BAH vs VEN | Round Robin | Hard | Mark Knowles | 6-3 | 6-4 |