By surface
| Surface | John Holladay | Margarita De Zuleta |
|---|---|---|
| Clay | 1 | 0 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1969-10-06 | WTA | Quito | Semifinal | Clay | Ana Maria Ycaza | 0-6 | 1-6 |
| Surface | John Holladay | Margarita De Zuleta |
|---|---|---|
| Clay | 1 | 0 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1969-10-06 | WTA | Quito | Semifinal | Clay | Ana Maria Ycaza | 0-6 | 1-6 |