2018 Volvo Car Open
| 2018 Volvo Car Open | |
|---|---|
| Date | April 2 – 8 |
| Edition | 46th |
| Category | WTA Premier |
| Draw | 56S / 16D |
| Prize money | $776,000 |
| Surface | Green clay |
| Location | Charleston, United States |
| Venue | Family Circle Tennis Center |
| Champions | |
| Singles | |
 Kiki Bertens | |
| Doubles | |
 Alla Kudryavtseva /  Katarina Srebotnik | |
The 2018 Volvo Car Open was a women's tennis event on the 2018 WTA Tour. It took place between April 2 – 8, 2018 and was the 46th edition of the Charleston Open tournament and a Premier level tournament. The event took place at the Family Circle Tennis Center, on Daniel Island, Charleston, United States. It was the only event of the clay court season played on green clay.
Points and prize money
Point distribution
| Event | W | F | SF | QF | Round of 16 | Round of 32 | Round of 64 | Q | Q2 | Q1 |
| Women's Singles | 470 | 305 | 185 | 100 | 55 | 30 | 1 | 25 | 13 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|
| Women's Doubles | 1 | — | — | — | — | — |
Prize money
| Event | W | F | SF | QF | Round of 16 | Round of 32 | Round of 64 | Q2 | Q1 |
| Women's Singles | $132,380 | $70,460 | $34,723 | $17,858 | $9,254 | $4,738 | $2,434 | $1,106 | $661 |
|---|---|---|---|---|---|---|---|---|---|
| Women's Doubles | $41,650 | $22,055 | $12,133 | $6,175 | $3,354 | — | — | — | — |
Singles main draw entrants
Seeds
| Country | Player | Ranking1 | Seed |
|---|---|---|---|
 FRA
|
Caroline Garcia | 7 | 1 |
 CZE
|
Petra Kvitová | 9 | 2 |
| RUS
|
Daria Kasatkina | 11 | 3 |
 USA |
|||
 GER
|
Julia Görges | 13 | 5 |
 GBR
|
Johanna Konta | 14 | 6 |
| USA
|
Madison Keys | 15 | 7 |
 LAT
|
Anastasija Sevastova | 17 | 8 |
 AUS
|
Ashleigh Barty | 20 | 9 |
 JPN
|
Naomi Osaka | 22 | 10 |
| AUS
|
Daria Gavrilova | 26 | 11 |
| NED
|
Kiki Bertens | 29 | 12 |
 ROU
|
Irina-Camelia Begu | 37 | 13 |
| FRA
|
Alizé Cornet | 38 | 14 |
| ROU
|
Mihaela Buzărnescu | 39 | 15 |
| RUS
|
Elena Vesnina | 43 | 16 |
- 1 Rankings as of March 19, 2018.
Other entrants
The following players received wildcards into the main draw:
The following players received entry from the qualifying draw:
Francesca Di Lorenzo- Caroline Dolehide
Georgina García Pérez
Vera Lapko- Claire Liu
- Sílvia Soler Espinosa
Fanny Stollár
Maryna Zanevska
The following player received entry as a lucky loser:
Withdrawals
- Before the tournament
- Catherine Bellis → replaced by Kristie Ahn
Kaia Kanepi → replaced by 
Polona Hercog
Ana Konjuh → replaced by 
Andrea Petkovic- Petra Martić → replaced by Sofia Kenin
- Shelby Rogers → replaced by Jennifer Brady
Lucie Šafářová → replaced by Taylor Townsend
Maria Sakkari → replaced by Bernarda Pera- Sloane Stephens → replaced by
Dayana Yastremska - Barbora Strýcová → replaced by
Natalia Vikhlyantseva
Retirements
Doubles main draw entrants
Seeds
| Country | Player | Country | Player | Rank1 | Seed |
|---|---|---|---|---|---|
 CAN
|
Gabriela Dabrowski |  CHN
|
Xu Yifan | 16 | 1 |
| USA
|
Bethanie Mattek-Sands | CZE
|
Andrea Sestini Hlaváčková | 33 | 2 |
| SLO
|
Andreja Klepač |  ESP
|
María José Martínez Sánchez | 42 | 3 |
| CZE
|
Barbora Krejčíková | CZE
|
Kateřina Siniaková | 44 | 4 |
- 1 Rankings as of March 19, 2018.
Other entrants
The following pairs received wildcards into the doubles main draw:
Champions
Singles
Kiki Bertens def. Julia Görges, 6–2, 6–1
Doubles
- Alla Kudryavtseva / Katarina Srebotnik def. Andreja Klepač / María José Martínez Sánchez, 6–3, 6–3