2020 Mercer Tennis Classic – Singles

Katerina Stewart was the defending champion, but lost in the first round to Ann Li.

Catherine Bellis won the title, defeating Marta Kostyuk in final after she retired at 6–4, 6–7(4–7), 0–0.

Seeds
• # 🇯🇵 Misaki Doi (quarterfinals)

• # 🇷🇸 Nina Stojanović (first round)

• # Monica Puig (withdrew)

• # 🇺🇸 Kristie Ahn (second round)

• # 🇺🇸 Ann Li (second round)

• # 🇺🇦 Marta Kostyuk (final)

• # 🇧🇪 Greet Minnen (first round)

• # 🇺🇸 Caty McNally (second round)

• # 🇦🇺 Astra Sharma (first round)