By surface
| Surface | Jourdan Kast | Sergio Ruiz |
|---|---|---|
| Hard | 0 | 1 |
All meetings (2)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1991-07-24 | WTA | Fed Cup WG R2: AUT vs FIN | Round Robin | — | Petra Thoren | 0-6 | 3-6 | |||
| 1991-01-14 | WTA | Australian Open | Round of 128 | Hard | Barbara Paulus | 3-6 | 3-6 |