By surface
| Surface | Hietala | Oleg Dyachenko |
|---|---|---|
| Grass | 1 | 0 |
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2014-06-09 | WTA | Birmingham | Round of 64 | Grass | Shuai Zhang | 5-7 | 4-6 |
| Surface | Hietala | Oleg Dyachenko |
|---|---|---|
| Grass | 1 | 0 |
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2014-06-09 | WTA | Birmingham | Round of 64 | Grass | Shuai Zhang | 5-7 | 4-6 |