By surface
| Surface | Rio Noguchi | Alvaro Alfonso Ruiz |
|---|---|---|
| Carpet | 0 | 1 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1991-09-23 | WTA | St. Petersburg | Semifinal | Carpet | Barbara Rittner | 6-3 | 3-6 | 4-6 |
| Surface | Rio Noguchi | Alvaro Alfonso Ruiz |
|---|---|---|
| Carpet | 0 | 1 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1991-09-23 | WTA | St. Petersburg | Semifinal | Carpet | Barbara Rittner | 6-3 | 3-6 | 4-6 |