| Year | Tournament | Result | Player | Age | Nation |
|---|---|---|---|---|---|
| 1968 | French Open | R64 | Maria Chakarova | 30 | Bulgaria |
| 1968 | French Open | R128 | Lubka Radkova | 23 | Bulgaria |
Open Era Grand Slam Tennis| Year | Tournament | Result | Player | Age | Nation |
|---|---|---|---|---|---|
| 1968 | French Open | R64 | Maria Chakarova | 30 | Bulgaria |
| 1968 | French Open | R128 | Lubka Radkova | 23 | Bulgaria |