By surface
| Surface | Kazuhlko Okada | Kushaan Nath |
|---|---|---|
| Hard | 0 | 3 |
All meetings (3)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2011-07-25 | WTA | Stanford | Round of 32 | Hard | Serena Williams | 0-6 | 0-6 | |||
| 2008-03-03 | WTA | Bangalore | Quarterfinal | Hard | Serena Williams | 1-6 | 4-6 | |||
| 2007-03-19 | WTA | Miami | Round of 64 | Hard | Serena Williams | 3-6 | 3-6 |