By surface
| Surface | Jeff Duncan | Mark Philippen |
|---|
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1976-03-01 | WTA | Madrid Campo | Quarterfinal | — | Carmen Coronado | 3-6 | 6-2 | 3-6 |
| Surface | Jeff Duncan | Mark Philippen |
|---|
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1976-03-01 | WTA | Madrid Campo | Quarterfinal | — | Carmen Coronado | 3-6 | 6-2 | 3-6 |