By surface
| Surface | Ari Alkio | Sidney Yap |
|---|---|---|
| Hard | 2 | 0 |
All meetings (2)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2019-08-26 | WTA | US Open | Round of 128 | Hard | Caroline Wozniacki | 6-1 | 5-7 | 3-6 | ||
| 2015-03-02 | WTA | Kuala Lumpur | Round of 32 | Hard | Caroline Wozniacki | 3-6 | 1-6 |