2018 Qatar Total Open – Singles

Petra Kvitová defeated Garbiñe Muguruza in the final, 3–6, 6–3, 6–4 to win the singles tennis title at the 2018 WTA Qatar Open.

Karolína Plíšková was the defending champion, but lost in the third round to Catherine Bellis.

Caroline Wozniacki and Simona Halep were in contention for the WTA no. 1 singles ranking at the beginning of the tournament. Wozniacki retained the no. 1 ranking when she won her quarterfinal match and Halep withdrew from the semifinals.

Seeds
The top eight seeds received a bye into the second round. • Caroline Wozniacki (semifinals)

• 🇷🇴 Simona Halep (semifinals, withdrew due to a right foot injury)

• 🇺🇦 Elina Svitolina (third round)

• 🇪🇸 Garbiñe Muguruza (final)

• 🇨🇿 Karolína Plíšková (third round)

• Jeļena Ostapenko (second round)

• 🇫🇷 Caroline Garcia (quarterfinals)

• 🇩🇪 Angelique Kerber (quarterfinals)

• 🇩🇪 Julia Görges (quarterfinals, retired)

• 🇬🇧 Johanna Konta (third round)

• 🇫🇷 Kristina Mladenovic (second round)

• 🇺🇸 Madison Keys (second round)

• Anastasija Sevastova (third round)

• 🇸🇰 Magdaléna Rybáriková (second round, retired)

• 🇧🇪 Elise Mertens (second round)

• 🇨🇿 Petra Kvitová (champion)

Seeds
• # 🇺🇸 Catherine Bellis (qualified)

• # 🇯🇵 Naomi Osaka (qualified)

• # 🇨🇿 Markéta Vondroušová (qualified)

• # Hsieh Su-wei (first round)

• # 🇺🇸 Christina McHale (qualifying competition)

• # 🇺🇦 Kateryna Bondarenko (qualified)

• # 🇷🇺 Ekaterina Alexandrova (qualifying competition, retired)

• # 🇷🇴 Monica Niculescu (qualified)

• # 🇮🇹 Francesca Schiavone (first round)

• # 🇫🇷 Océane Dodin (first round)

• # 🇨🇳 Duan Yingying (qualified)

• # 🇩🇪 Andrea Petkovic (qualifying competition)

• # 🇪🇸 Sara Sorribes Tormo (qualifying competition)

• # 🇺🇸 Bernarda Pera (qualified)

• # Jana Fett (first round)

• # 🇲🇪 Danka Kovinić (qualifying competition)

Qualifiers
• # 🇺🇸 Catherine Bellis

• # 🇯🇵 Naomi Osaka

• # 🇨🇿 Markéta Vondroušová

• # 🇨🇳 Duan Yingying

• # 🇺🇸 Bernarda Pera

• # 🇺🇦 Kateryna Bondarenko

• # 🇷🇺 Anna Blinkova

• # 🇷🇴 Monica Niculescu