By surface
| Surface | Hietala | Imre Kovacs |
|---|---|---|
| Clay | 1 | 0 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2015-04-06 | WTA | Charleston | Round of 64 | Clay | Shuai Zhang | 4-6 | 5-7 |
| Surface | Hietala | Imre Kovacs |
|---|---|---|
| Clay | 1 | 0 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2015-04-06 | WTA | Charleston | Round of 64 | Clay | Shuai Zhang | 4-6 | 5-7 |