| Singles | |
|---|---|
| 2018 Grand Prix SAR La Princesse Lalla Meryem | |
| Champion |  Elise Mertens |
| Runner-up |  Ajla Tomljanović |
| Final score | 6–2, 7–6(7–4) |
Anastasia Pavlyuchenkova was the defending champion, but chose not to participate.
Elise Mertens won the title, defeating Ajla Tomljanović in the final, 6–2, 7–6(7–4).
Elise Mertens (champion)
Dominika Cibulková (first round)
Petra Martić (first round)
Tímea Babos (first round)
Timea Bacsinszky (withdrew)
Zarina Diyas (first round)
Aleksandra Krunić (semifinals)
Hsieh Su-wei (semifinals)| Semifinals | Final | ||||||||||||
| 1 | Elise Mertens | 6 | 6 | ||||||||||
| 8 | Hsieh Su-wei | 0 | 2 | ||||||||||
| 1 | Elise Mertens | 6 | 77 | ||||||||||
| Ajla Tomljanović | 2 | 64 | |||||||||||
| Ajla Tomljanović | 7 | 6 | |||||||||||
| 7 | Aleksandra Krunić | 5 | 2 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | E Mertens | 6 | 6 | ||||||||||||||||||||||||
| PR | K Kučová | 0 | 0 | 1 | E Mertens | 65 | 6 | 3 | |||||||||||||||||||
 L Siegemund | 6 | 6 | L Siegemund | 77 | 0 | 1r | |||||||||||||||||||||
 A Bogdan | 4 | 1 | 1 | E Mertens | 6 | 6 | |||||||||||||||||||||
 R Peterson | 6 | 3 | 1 |  S Errani | 3 | 1 | |||||||||||||||||||||
| J Larsson | 2 | 6 | 6 | J Larsson | 3 | 0 | |||||||||||||||||||||
| S Errani | 6 | 6 | S Errani | 6 | 6 | ||||||||||||||||||||||
| 6 | Z Diyas | 4 | 4 | 1 | E Mertens | 6 | 6 | ||||||||||||||||||||
| 4 | T Babos | 6 | 67 | 5 | 8 | S-w Hsieh | 0 | 2 | |||||||||||||||||||
| LL | A Dulgheru | 2 | 79 | 7 | LL | A Dulgheru | 5 | 6 | 4 | ||||||||||||||||||
| WC |  D El Jardi | 2 | 3 | WC |  K Zavatska | 7 | 2 | 6 | |||||||||||||||||||
| WC | K Zavatska | 6 | 6 | WC | K Zavatska | 1 | 1 | ||||||||||||||||||||
 M Linette | 4 | 2 | 8 | S-w Hsieh | 6 | 6 | |||||||||||||||||||||
| Q |  T Zidanšek | 6 | 6 | Q | T Zidanšek | 78 | 3 | 3 | |||||||||||||||||||
| PR |  B Mattek-Sands | 6 | 63 | 1 | 8 | S-w Hsieh | 66 | 6 | 6 | ||||||||||||||||||
| 8 | S-w Hsieh | 3 | 77 | 6 | |||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| LL | M Fręch | 7 | 7 | ||||||||||||||||||||||||
| C McHale | 5 | 5 | LL | M Fręch | 2 | 4 | |||||||||||||||||||||
| J Fett | 6 | 3 | 6 | J Fett | 6 | 6 | |||||||||||||||||||||
| S Vickery | 2 | 6 | 3 | J Fett | 6 | 3 | 3 | ||||||||||||||||||||
| A Tomljanović | 6 | 3 | 6 | A Tomljanović | 3 | 6 | 6 | ||||||||||||||||||||
| Q |  S Soler Espinosa | 2 | 6 | 1 | A Tomljanović | 6 | 6 | ||||||||||||||||||||
| K Flipkens | 3 | 6 | 6 | K Flipkens | 3 | 2 | |||||||||||||||||||||
| 3 | P Martić | 6 | 2 | 4 | A Tomljanović | 7 | 6 | ||||||||||||||||||||
| 7 | A Krunić | 6 | 60 | 6 | 7 | A Krunić | 5 | 2 | |||||||||||||||||||
| L Arruabarrena | 2 | 77 | 2 | 7 | A Krunić | 6 | 6 | ||||||||||||||||||||
| Y Putintseva | 64 | 0 | S Sorribes Tormo | 3 | 1 | ||||||||||||||||||||||
| S Sorribes Tormo | 77 | 6 | 7 | A Krunić | 6 | 1 | |||||||||||||||||||||
| Q | P Badosa Gibert | 5 | 6 | 6 | Q | P Badosa Gibert | 2 | 0r | |||||||||||||||||||
| Q |  F Ferro | 7 | 4 | 0 | Q | P Badosa Gibert | 65 | 6 | 6 | ||||||||||||||||||
| P Hercog | 2 | 7 | 6 | P Hercog | 77 | 1 | 2 | ||||||||||||||||||||
| 2 | D Cibulková | 6 | 5 | 4 | |||||||||||||||||||||||
Anna Blinkova (second round) Caroline Dolehide (first round)
Danka Kovinić (first round)
Arantxa Rus (second round) Tamara Zidanšek (qualified) Jil Teichmann (second round) Magdalena Fręch (qualifying competition, lucky loser)
Barbora Krejčíková (second round)| First round | Second round | Qualifying competition | ||||||||||||||||||
| 1 | Anna Blinkova | 6 | 77 | |||||||||||||||||
 Daniela Seguel | 4 | 61 | ||||||||||||||||||
| 1 | Anna Blinkova | 4 | 3 | |||||||||||||||||
| Sílvia Soler Espinosa | 6 | 6 | ||||||||||||||||||
| Sílvia Soler Espinosa | 6 | 6 | ||||||||||||||||||
| WC |  Sandra Samir | 2 | 0 | |||||||||||||||||
| Sílvia Soler Espinosa | 6 | 6 | ||||||||||||||||||
| Martina Trevisan | 4 | 4 | ||||||||||||||||||
| Georgina García Pérez | 0 | 2 | ||||||||||||||||||
| Martina Trevisan | 6 | 6 | ||||||||||||||||||
| Martina Trevisan | 6 | 6 | ||||||||||||||||||
| 8 | Barbora Krejčíková | 2 | 3 | |||||||||||||||||
 Ayla Aksu | 1 | 0 | ||||||||||||||||||
| 8 | Barbora Krejčíková | 6 | 6 | |||||||||||||||||
| First round | Second round | Qualifying competition | ||||||||||||||||||
| 2 | Caroline Dolehide | 77 | 3 | 3 | ||||||||||||||||
| Fiona Ferro | 65 | 6 | 6 | |||||||||||||||||
| Fiona Ferro | 6 | 6 | ||||||||||||||||||
| Jessika Ponchet | 4 | 3 | ||||||||||||||||||
| Myrtille Georges | 6 | 4 | 1r | |||||||||||||||||
| Jessika Ponchet | 4 | 6 | 4 | |||||||||||||||||
| Fiona Ferro | 6 | 6 | ||||||||||||||||||
| Alexandra Dulgheru | 1 | 4 | ||||||||||||||||||
| Alexandra Dulgheru | 6 | 6 | ||||||||||||||||||
| WC | Salma Charif | 0 | 2 | |||||||||||||||||
| Alexandra Dulgheru | 6 | 6 | ||||||||||||||||||
| 6 | Jil Teichmann | 2 | 1 | |||||||||||||||||
| WC | Panna Udvardy | 3 | 1 | |||||||||||||||||
| 6 | Jil Teichmann | 6 | 6 | |||||||||||||||||
| First round | Second round | Qualifying competition | ||||||||||||||||||
| 3 | Danka Kovinić | 62 | 3 | |||||||||||||||||
| Fanny Stollár | 77 | 6 | ||||||||||||||||||
| Fanny Stollár | 6 | 6 | ||||||||||||||||||
| Maryna Zanevska | 3 | 4 | ||||||||||||||||||
| Isabelle Wallace | 3 | 1 | ||||||||||||||||||
| Maryna Zanevska | 6 | 6 | ||||||||||||||||||
| Fanny Stollár | 6 | 4 | 4 | |||||||||||||||||
| 5 | Tamara Zidanšek | 4 | 6 | 6 | ||||||||||||||||
| Marie Benoît | 6 | 6 | ||||||||||||||||||
| Harmony Tan | 1 | 1 | ||||||||||||||||||
| Marie Benoît | 2 | 2 | ||||||||||||||||||
| 5 | Tamara Zidanšek | 6 | 6 | |||||||||||||||||
| Bibiane Schoofs | 3 | 6 | 4 | |||||||||||||||||
| 5 | Tamara Zidanšek | 6 | 3 | 6 | ||||||||||||||||
| First round | Second round | Qualifying competition | ||||||||||||||||||
| 4 | Arantxa Rus | 6 | 6 | |||||||||||||||||
 Ons Jabeur | 3 | 1 | ||||||||||||||||||
| 4 | Arantxa Rus | 6 | 4 | 3 | ||||||||||||||||
| Paula Badosa Gibert | 1 | 6 | 6 | |||||||||||||||||
| Paula Badosa Gibert | 3 | 7 | 6 | |||||||||||||||||
| Başak Eraydın | 6 | 5 | 1 | |||||||||||||||||
| Paula Badosa Gibert | 6 | 6 | ||||||||||||||||||
| 7 | Magdalena Fręch | 1 | 3 | |||||||||||||||||
| İpek Soylu | 6 | 6 | ||||||||||||||||||
| Lizette Cabrera | 3 | 4 | ||||||||||||||||||
| İpek Soylu | 4 | 1r | ||||||||||||||||||
| 7 | Magdalena Fręch | 6 | 4 | |||||||||||||||||
| Conny Perrin | 3 | 3 | ||||||||||||||||||
| 7 | Magdalena Fręch | 6 | 6 | |||||||||||||||||
Çağla Büyükakçay was the defending champion, but lost in the quarterfinals to Elise Mertens.
Simona Halep was the defending champion, but chose not to participate this year.
Tímea Babos was the defending champion, but lost in the second round to Mona Barthel.
Markéta Vondroušová was the defending champion, but lost in the second round to Elise Mertens.
The 2018 Grand Prix SAR La Princesse Lalla Meryem was a women's professional tennis tournament played on clay courts. It was the 18th edition of the tournament and part of the WTA International tournaments category of the 2018 WTA Tour. It took place in Rabat, Morocco, between 30 April and 5 May 2018.
Madison Keys was the defending champion, but withdrew due to a wrist injury.
Petra Kvitová was the defending champion, but chose not to participate.
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