# 2015 Aegon Surbiton Trophy – Women's singles

This was the first edition of the tournament since 2008.
Vitalia Diatchenko won the title, defeating Naomi Osaka in the final, 7–6$^{(7–5)}$, 6–0.

## Seeds

* Vitalia Diatchenko (champion)
* Hsieh Su-wei (quarterfinals)
* Petra Cetkovská (second round)
* Mandy Minella (first round)
* Verónica Cepede Royg (first round)
* Anett Kontaveit (semifinals)
* Stéphanie Foretz (second round)
* Naomi Osaka (final)

## Main draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 1 | Vitalia Diatchenko | 6 | 6 | | | | | |
| | Naomi Broady | 1 | 3 | | | | | |
| | Naomi Broady | 1 | 3 | | 1 | Vitalia Diatchenko | 7$^7$ | 6 |
| | | | | | 8 | Naomi Osaka | 6$^5$ | 0 |
| 6 | Anett Kontaveit | 4 | 7$^7$ | 2 | 8 | Naomi Osaka | 6$^5$ | 0 |
| 8 | Naomi Osaka | 6 | 6$^5$ | 6 | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | V Diatchenko | 7 | 1 | 6 | | | | | | | | | | | | | |
| Q | N Bains | 5 | 6 | 1 | 1 | V Diatchenko | 3 | 6 | 6 | | | | | | | | |
| Q | L Brown | 5 | 0$^r$ | | | T Moore | 6 | 2 | 4 | | | | | | | | |
| | T Moore | 7 | 5 | | | | | | | 1 | V Diatchenko | 6 | 6 | | | | |
| | M Sirotkina | 4 | 6 | 6 | | | | | | | T Paszek | 4 | 4 | | | | |
| | A Kalinina | 6 | 3 | 4 | | M Sirotkina | 2 | 3 | | | | | | | | | |
| | T Paszek | 6 | 6 | | | T Paszek | 6 | 6 | | | | | | | | | |
| 5 | V Cepede Royg | 3 | 3 | | | | | | | | | | | 1 | V Diatchenko | 6 | 6 |
| 3 | P Cetkovská | 6 | 6 | | | | | | | | | | | | N Broady | 1 | 3 |
| WC | L Deigman | 1 | 3 | | 3 | P Cetkovská | 1 | 5 | | | | | | | | | |
| | N Broady | 6 | 2 | 6 | | N Broady | 6 | 7 | | | | | | | | | |
| WC | G Taylor | 4 | 6 | 3 | | | | | | | N Broady | 6 | 6 | | | | |
| | A Carreras | 3 | 6 | 6 | | | | | | | A Carreras | 1 | 4 | | | | |
| WC | F Stephenson | 6 | 3 | 3 | | A Carreras | 6 | 2 | 6 | | | | | | | | |
| | J Coin | 3 | 2 | | 7 | S Foretz | 4 | 6 | 3 | | | | | | | | |
| 7 | S Foretz | 6 | 6 | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 6 | A Kontaveit | 6 | 6 | | | | | | | | | | | | | | | | |
| Q | J Drew | 1 | 2 | | 6 | A Kontaveit | 6 | 6 | | | | | | | | | | | |
| | N Cavaday | 7$^8$ | 0 | 3 | | E Webley-Smith | 0 | 2 | | | | | | | | | | | |
| | E Webley-Smith | 6$^6$ | 6 | 6 | | | | | | 6 | A Kontaveit | 6 | 6 | | | | | | |
| | G García Pérez | 7$^7$ | 6 | | | | | | | | G García Pérez | 3 | 3 | | | | | | |
| | A Bowtell | 6$^2$ | 2 | | | G García Pérez | 6 | 6 | | | | | | | | | | | |
| PR | M Buzărnescu | 7 | 6 | | PR | M Buzărnescu | 2 | 4 | | | | | | | | | | | |
| 4 | M Minella | 5 | 1 | | | | | | | | | | | | 6 | A Kontaveit | 4 | 7$^7$ | 2 |
| 8 | N Osaka | 6 | 6 | | | | | | | | | | | | 8 | N Osaka | 6 | 6$^5$ | 6 |
| Q | L Stefani | 4 | 4 | | 8 | N Osaka | 0 | 7$^7$ | 6 | | | | | | | | | | |
| | X Knoll | 6 | 6 | | | X Knoll | 6 | 6$^4$ | 0 | | | | | | | | | | |
| WC | G Axon | 1 | 1 | | | | | | | 8 | N Osaka | 6 | 6$^5$ | 6 | | | | | |
| | H Dart | 6 | 6 | | | | | | | 2 | S-w Hsieh | 4 | 7$^7$ | 3 | | | | | |
| | L Kichenok | 4 | 1 | | | H Dart | 5 | 5 | | | | | | | | | | | |
| | A Bai | 1 | 3 | | 2 | S-w Hsieh | 7 | 7 | | | | | | | | | | | |
| 2 | S-w Hsieh | 6 | 6 | | | | | | | | | | | | | | | | |