By surface
| Surface | Hietala | Tommy Adams |
|---|---|---|
| Hard | 0 | 2 |
All meetings (2)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2021-08-02 | WTA | San Jose | Quarterfinal | Hard | Ana Konjuh | 6-3 | 2-6 | 0-6 | ||
| 2017-02-20 | WTA | Dubai | Round of 64 | Hard | Ana Konjuh | 0-6 | 1-6 |