| Singles | |
|---|---|
| 2019 İstanbul Cup | |
| Champion |  Petra Martić |
| Runner-up |  Markéta Vondroušová |
| Score | 1–6, 6–4, 6–1 |
| Draw | 32 |
| Seeds | 8 |
Pauline Parmentier was the defending champion, [1] but lost in the second round to Elena Rybakina.
Petra Martić won her first WTA Tour title, defeating Markéta Vondroušová in the final, 1–6, 6–4, 6–1.
Carla Suárez Navarro (first round)
Mihaela Buzărnescu (second round)
Camila Giorgi (withdrew)
Dayana Yastremska (first round)
Ajla Tomljanović (first round) Petra Martić (champion) Kateřina Siniaková (first round)
Maria Sakkari (first round)
Viktória Kužmová (first round)| Semifinals | Final | ||||||||||||
| Markéta Vondroušová | 6 | 6 | |||||||||||
| Barbora Strýcová | 2 | 1 | |||||||||||
| Markéta Vondroušová | 6 | 4 | 1 | ||||||||||
| 6 | Petra Martić | 1 | 6 | 6 | |||||||||
| 6 | Petra Martić | 6 | 0 | ||||||||||
 Margarita Gasparyan | 1 | 0r | |||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | C Suárez Navarro | 4 | 5 | ||||||||||||||||||||||||
| L Arruabarrena | 6 | 7 | L Arruabarrena | 6 | 6 | ||||||||||||||||||||||
 R Peterson | 6 | 2 | 6 | R Peterson | 3 | 2 | |||||||||||||||||||||
| WC |  P Özgen | 1 | 6 | 0 | L Arruabarrena | 1 | 2 | ||||||||||||||||||||
| WC | Ç Büyükakçay | 3 | 64 | M Vondroušová | 6 | 6 | |||||||||||||||||||||
| WC | S Kuznetsova | 6 | 77 | WC | S Kuznetsova | 4 | 3 | ||||||||||||||||||||
| M Vondroušová | 6 | 6 | M Vondroušová | 6 | 6 | ||||||||||||||||||||||
| 5 | A Tomljanović | 3 | 3 | M Vondroušová | 6 | 6 | |||||||||||||||||||||
| 9 | V Kužmová | 7 | 5 | 4 | B Strýcová | 2 | 1 | ||||||||||||||||||||
| B Strýcová | 5 | 7 | 6 | B Strýcová | 6 | 1 | 6 | ||||||||||||||||||||
| S Cîrstea | 2 | 6 | 6 | S Cîrstea | 2 | 6 | 3 | ||||||||||||||||||||
| Q | I Bara | 6 | 0 | 0 | B Strýcová | 0 | 78 | 6 | |||||||||||||||||||
 P Parmentier | 6 | 6 | Q |  E Rybakina | 6 | 66 | 0 | ||||||||||||||||||||
| E Rodina | 1 | 1 | P Parmentier | 0 | 4 | ||||||||||||||||||||||
| Q | E Rybakina | 3 | 6 | 6 | Q | E Rybakina | 6 | 6 | |||||||||||||||||||
| 7 | K Siniaková | 6 | 2 | 4 | |||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 6 | P Martić | 3 | 6 | 6 | |||||||||||||||||||||||
 T Zidanšek | 6 | 1 | 3 | 6 | P Martić | 4 | 7 | 6 | |||||||||||||||||||
 K Flipkens | 1 | 0r | Q | A Bogdan | 6 | 5 | 3 | ||||||||||||||||||||
| Q | A Bogdan | 6 | 1 | 6 | P Martić | 77 | 4 | 77 | |||||||||||||||||||
| Q | K Kozlova | 6 | 1 | K Mladenovic | 64 | 6 | 62 | ||||||||||||||||||||
| A Potapova | 3 | 0r | Q | K Kozlova | 1 | 2 | |||||||||||||||||||||
| K Mladenovic | 6 | 6 | K Mladenovic | 6 | 6 | ||||||||||||||||||||||
| 4 | D Yastremska | 3 | 4 | 6 | P Martić | 6 | 0 | ||||||||||||||||||||
| 8 | M Sakkari | 3 | 4 | M Gasparyan | 1 | 0r | |||||||||||||||||||||
| Q | V Kudermetova | 6 | 6 | Q | V Kudermetova | 6 | 77 | ||||||||||||||||||||
| LL |  T Babos | 6 | 6 | LL | T Babos | 0 | 64 | ||||||||||||||||||||
| Q |  I Jorović | 4 | 4 | Q | V Kudermetova | 5 | 4 | ||||||||||||||||||||
| J Larsson | 66 | 6 | 3 | M Gasparyan | 7 | 6 | |||||||||||||||||||||
| M Gasparyan | 78 | 4 | 6 | M Gasparyan | 1 | 6 | 7 | ||||||||||||||||||||
| LL |  J Glushko | 4 | 4 | 2 | M Buzărnescu | 6 | 4 | 5 | |||||||||||||||||||
| 2 | M Buzărnescu | 6 | 6 | ||||||||||||||||||||||||
Veronika Kudermetova (qualified) Kateryna Kozlova (qualified) Ivana Jorović (qualified) Julia Glushko (qualifying competition, lucky loser) Tímea Babos (qualifying competition, retired, lucky loser) Fanny Stollár (first round) Ana Bogdan (qualified)
Viktoriya Tomova (first round)
Danka Kovinić (first round, retired) Elena Rybakina (qualified) Alexandra Dulgheru (qualifying competition) Arina Rodionova (first round)| First round | Qualifying competition | ||||||||||||
| 1 | Veronika Kudermetova | 79 | 6 | ||||||||||
 Giuliana Olmos | 67 | 1 | |||||||||||
| 1 | Veronika Kudermetova | 6 | 6 | ||||||||||
| Martina Di Giuseppe | 4 | 1 | |||||||||||
| Martina Di Giuseppe | 6 | 6 | |||||||||||
| 8 | Viktoriya Tomova | 3 | 2 | ||||||||||
| First round | Qualifying competition | ||||||||||||
| 2 | Kateryna Kozlova | 6 | 6 | ||||||||||
| WC | Berfu Cengiz | 0 | 2 | ||||||||||
| 2 | Kateryna Kozlova | 6 | 6 | ||||||||||
| 11 | Alexandra Dulgheru | 2 | 4 | ||||||||||
| Tereza Mrdeža | 6 | 2 | 3 | ||||||||||
| 11 | Alexandra Dulgheru | 3 | 6 | 6 | |||||||||
| First round | Qualifying competition | ||||||||||||
| 3 | Ivana Jorović | 6 | 3 | 6 | |||||||||
| WC | İpek Soylu | 1 | 6 | 2 | |||||||||
| 3 | Ivana Jorović | 6 | 6 | ||||||||||
| Yana Sizikova | 1 | 2 | |||||||||||
| Yana Sizikova | 6 | 1 | |||||||||||
| 9 | Danka Kovinić | 3 | 2r | ||||||||||
| First round | Qualifying competition | ||||||||||||
| 4 | Julia Glushko | 6 | 6 | ||||||||||
| WC | Zeynep Sönmez | 3 | 2 | ||||||||||
| 4 | Julia Glushko | 6 | 4 | 2 | |||||||||
| Irina Bara | 2 | 6 | 6 | ||||||||||
| Irina Bara | 6 | 6 | |||||||||||
| 12 | Arina Rodionova | 1 | 1 | ||||||||||
| First round | Qualifying competition | ||||||||||||
| 5 | Tímea Babos | 7 | 64 | 6 | |||||||||
 Barbara Haas | 5 | 77 | 1 | ||||||||||
| 5 | Tímea Babos | 4 | 0r | ||||||||||
| 10 | Elena Rybakina | 6 | 3 | ||||||||||
| Valentina Ivakhnenko | 1 | 0r | |||||||||||
| 10 | Elena Rybakina | 6 | 1 | ||||||||||
| First round | Qualifying competition | ||||||||||||
| 6 | Fanny Stollár | 3 | 1 | ||||||||||
| WC | İpek Öz | 6 | 6 | ||||||||||
| WC | İpek Öz | 0 | 2 | ||||||||||
| 7 | Ana Bogdan | 6 | 6 | ||||||||||
| Anna Bondár | 6 | 3 | 3 | ||||||||||
| 7 | Ana Bogdan | 2 | 6 | 6 | |||||||||
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