By surface
| Surface | Apostolos Triandafilios | Hietala |
|---|---|---|
| Hard | 2 | 1 |
All meetings (3)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2017-07-24 | WTA | Nanchang | Round of 32 | Hard | Kai Chen Chang | 4-6 | 7-66 | 4-6 | ||
| 2011-02-28 | WTA | Kuala Lumpur | Round of 32 | Hard | Shuai Zhang | 4-6 | 7-63 | 4-6 | ||
| 2010-02-22 | WTA | Kuala Lumpur | Round of 32 | Hard | Kai Chen Chang | 6-74 | 5-7 |