| Singles | |
|---|---|
| 2019 Mallorca Open | |
| Champion |  Sofia Kenin |
| Runner-up |  Belinda Bencic |
| Final score | 6–7(2–7), 7–6(7–5), 6–4 |
| Draw | 32 |
| Seeds | 8 |
Tatjana Maria was the defending champion, but chose not to participate this year. [1]
Sofia Kenin won the title, defeating Belinda Bencic in the final, 6–7(2–7), 7–6(7–5), 6–4, despite being three championship points down in the second set. [2]
Angelique Kerber (semifinals)
Anastasija Sevastova (semifinals) Belinda Bencic (final)
Elise Mertens (quarterfinals) Amanda Anisimova (quarterfinals)
Caroline Garcia (quarterfinals) Sofia Kenin (champion)
Kateřina Siniaková (first round)| Semifinals | Final | ||||||||||||
| 1 | Angelique Kerber | 6 | 62 | 4 | |||||||||
| 3 | Belinda Bencic | 2 | 77 | 6 | |||||||||
| 3 | Belinda Bencic | 77 | 65 | 4 | |||||||||
| 7 | Sofia Kenin | 62 | 77 | 6 | |||||||||
| 7 | Sofia Kenin | 6 | 4 | 6 | |||||||||
| 2 | Anastasija Sevastova | 4 | 6 | 2 | |||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | A Kerber | 7 | 4 | 6 | |||||||||||||||||||||||
| Q | Y Bonaventure | 5 | 6 | 2 | 1 | A Kerber | 6 | 6 | |||||||||||||||||||
 V Kužmová | 68 | 0 | WC |  M Sharapova | 2 | 3 | |||||||||||||||||||||
| WC | M Sharapova | 710 | 6 | 1 | A Kerber | 6 | 77 | ||||||||||||||||||||
| WC |  P Badosa | 62 | 7 | 7 | 6 | C Garcia | 3 | 65 | |||||||||||||||||||
| A Riske | 77 | 5 | 5 | WC | P Badosa | 2 | 77 | 3 | |||||||||||||||||||
 V Azarenka | 6 | 4 | 5 | 6 | C Garcia | 6 | 61 | 6 | |||||||||||||||||||
| 6 | C Garcia | 1 | 6 | 7 | 1 | A Kerber | 6 | 62 | 4 | ||||||||||||||||||
| 3 | B Bencic | 7 | 6 | 3 | B Bencic | 2 | 77 | 6 | |||||||||||||||||||
 R Peterson | 5 | 4 | 3 | B Bencic | 5 | 6 | 3 | ||||||||||||||||||||
| Q | S Rogers | 6 | 6 | Q | S Rogers | 7 | 3 | 1r | |||||||||||||||||||
 S Zhang | 2 | 2 | 3 | B Bencic | 6 | 6 | |||||||||||||||||||||
| A Cornet | 6 | 6 | 5 | A Anisimova | 2 | 2 | |||||||||||||||||||||
| Q | S Sorribes Tormo | 0 | 1 | A Cornet | 2 | 4 | |||||||||||||||||||||
| Q | T Martincová | 6 | 67 | 4 | 5 | A Anisimova | 6 | 6 | |||||||||||||||||||
| 5 | A Anisimova | 3 | 79 | 6 | |||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 7 | S Kenin | 6 | 6 | ||||||||||||||||||||||||
| K Flipkens | 2 | 3 | 7 | S Kenin | 6 | 2 | |||||||||||||||||||||
| Q |  K Juvan | 5 | 65 |  O Jabeur | 2 | 0r | |||||||||||||||||||||
| O Jabeur | 7 | 77 | 7 | S Kenin | 1 | 6 | 6 | ||||||||||||||||||||
| S Zheng | 4 | 5 | 4 | E Mertens | 6 | 1 | 3 | ||||||||||||||||||||
| WC |  S Stosur | 6 | 7 | WC | S Stosur | 3 | 3 | ||||||||||||||||||||
| WC | A Petkovic | 2 | 2 | 4 | E Mertens | 6 | 6 | ||||||||||||||||||||
| 4 | E Mertens | 6 | 6 | 7 | S Kenin | 6 | 4 | 6 | |||||||||||||||||||
| 8 | K Siniaková | 2 | 6 | 3 | 2 | A Sevastova | 4 | 6 | 2 | ||||||||||||||||||
| A Van Uytvanck | 6 | 3 | 6 | A Van Uytvanck | 63 | 3 | |||||||||||||||||||||
| PR | A-L Friedsam | 5 | 3 | Y Wang | 77 | 6 | |||||||||||||||||||||
| Y Wang | 7 | 6 | Y Wang | 2 | 1 | ||||||||||||||||||||||
 M Puig | 4 | 5 | 2 | A Sevastova | 6 | 6 | |||||||||||||||||||||
| A Tomljanović | 6 | 7 | A Tomljanović | 2 | 1 | ||||||||||||||||||||||
| Q | V Lepchenko | 3 | 65 | 2 | A Sevastova | 6 | 6 | ||||||||||||||||||||
| 2 | A Sevastova | 6 | 77 | ||||||||||||||||||||||||
Sara Sorribes Tormo (qualified)
Aleksandra Krunić (withdrew, still competing in Rosmalen) Mona Barthel (first round) Aliona Bolsova (qualifying competition) Jil Teichmann (qualifying competition) Fiona Ferro (qualifying competition) Christina McHale (first round) Ysaline Bonaventure (qualified) Kaja Juvan (qualified) Varvara Lepchenko (qualified) Priscilla Hon (first round)
Arantxa Rus (first round)| First round | Qualifying competition | ||||||||||||
| 1 | Sara Sorribes Tormo | 6 | 1 | 6 | |||||||||
| Antonia Lottner | 2 | 6 | 1 | ||||||||||
| 1 | Sara Sorribes Tormo | 6 | 6 | ||||||||||
| Johanna Larsson | 1 | 0 | |||||||||||
| Johanna Larsson | 4 | 6 | 6 | ||||||||||
| 11 | Priscilla Hon | 6 | 3 | 4 | |||||||||
| First round | Qualifying competition | ||||||||||||
| Alt |  Kurumi Nara | 6 | 7 | ||||||||||
| WC | Rosa Vicens Mas | 3 | 5 | ||||||||||
| Alt | Kurumi Nara | 4 | 6 | 0 | |||||||||
| 10 | Varvara Lepchenko | 6 | 2 | 6 | |||||||||
 Irina Bara | 6 | 1 | 2 | ||||||||||
| 10 | Varvara Lepchenko | 2 | 6 | 6 | |||||||||
| First round | Qualifying competition | ||||||||||||
| 3 | Mona Barthel | 2 | 77 | 2 | |||||||||
| WC | Sabine Lisicki | 6 | 62 | 6 | |||||||||
| WC | Sabine Lisicki | 7 | 4 | 4 | |||||||||
| 9 | Kaja Juvan | 5 | 6 | 6 | |||||||||
| Greet Minnen | 1 | 5 | |||||||||||
| 9 | Kaja Juvan | 6 | 7 | ||||||||||
| First round | Qualifying competition | ||||||||||||
| 4/WC | Aliona Bolsova | 77 | 6 | ||||||||||
| Han Xinyun | 65 | 3 | |||||||||||
| 4/WC | Aliona Bolsova | 79 | 4 | 3 | |||||||||
| Tereza Martincová | 67 | 6 | 6 | ||||||||||
| Tereza Martincová | 6 | 7 | |||||||||||
| 7 | Christina McHale | 2 | 5 | ||||||||||
| First round | Qualifying competition | ||||||||||||
| 5 | Jil Teichmann | 6 | 77 | ||||||||||
 Fanny Stollár | 3 | 65 | |||||||||||
| 5 | Jil Teichmann | 3 | 3 | ||||||||||
| 8 | Ysaline Bonaventure | 6 | 6 | ||||||||||
| WC |  Mira Antonitsch | 4 | 6 | 64 | |||||||||
| 8 | Ysaline Bonaventure | 6 | 4 | 77 | |||||||||
| First round | Qualifying competition | ||||||||||||
| 6 | Fiona Ferro | 6 | 6 | ||||||||||
| Georgina García Pérez | 2 | 2 | |||||||||||
| 6 | Fiona Ferro | 6 | 61 | 3 | |||||||||
| PR | Shelby Rogers | 1 | 77 | 6 | |||||||||
| PR | Shelby Rogers | 65 | 6 | 6 | |||||||||
| 12 | Arantxa Rus | 77 | 4 | 4 | |||||||||
Andrea Petkovic was the defending champion, but she lost to Angelique Kerber in the semifinals.
Johanna Larsson was the defending champion, but lost in the semifinals to Kateřina Siniaková.
Victoria Azarenka was the defending champion, but did not participate this year as she was on maternity leave.
Victoria Azarenka was the defending champion, but did not participate this year as she was on maternity leave.
Petra Kvitová was the defending champion, but lost in the first round to Peng Shuai.
Agnieszka Radwańska was the defending champion, but lost in the third round to Daria Kasatkina.
Tatjana Maria defeated the defending champion Anastasija Sevastova in the final, 6–4, 7–5 to win the singles tennis title at the 2018 Mallorca Open. It was her maiden WTA Tour title.
Caroline Garcia was the defending champion, but she lost in the third round to Aryna Sabalenka.
Bianca Andreescu won her first WTA Tour title, defeating Angelique Kerber in the final, 6–4, 3–6, 6–4. Andreescu became the first wildcard to win the title in the tournament's history and the youngest Indian Wells champion since Serena Williams in 1999. This also marked the second year in a row where a player won the tournament without having won a WTA singles title prior.
Kiki Bertens was the defending champion, but lost in the third round to Maria Sakkari.
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