2018 Copa Colsanitas – Singles

Francesca Schiavone was the defending champion, but withdrew before the tournament began.

Anna Karolína Schmiedlová won the title, defeating Lara Arruabarrena in the final, 6–2, 6–4.

Seeds
• #🇩🇪 Tatjana Maria (second round)

• #🇵🇱 Magda Linette (quarterfinals)

• #🇸🇪 Johanna Larsson (quarterfinals)

• # Verónica Cepede Royg (first round)

• #🇪🇸 Lara Arruabarrena (final)

• #🇺🇸 Alison Riske (first round)

• #🇷🇴 Ana Bogdan (semifinals)

• #🇦🇺 Ajla Tomljanović (first round)

Seeds
• # Dalila Jakupović (moved to main draw)

• # 🇦🇺 Lizette Cabrera (qualified)

• # 🇧🇪 Maryna Zanevska (qualifying competition)

• # Conny Perrin (qualifying competition)

• # Valentini Grammatikopoulou (qualified)

• # 🇦🇺 Priscilla Hon (qualifying competition)

• # Daniela Seguel (qualified)

• # 🇯🇵 Miharu Imanishi (first round)

• # 🇧🇬 Elitsa Kostova (qualified)

• # 🇷🇺 Irina Khromacheva (qualifying competition)

• # 🇦🇹 Julia Grabher (first round)

• # 🇲🇽 Renata Zarazúa (qualified)

Qualifiers
• # 🇧🇬 Elitsa Kostova

• # 🇦🇺 Lizette Cabrera

• # Daniela Seguel

• # 🇲🇽 Victoria Rodríguez

• # Valentini Grammatikopoulou

• # 🇲🇽 Renata Zarazúa