2020 Challenger Banque Nationale de Drummondville – Singles

Ričardas Berankis was the defending champion but chose not to defend his title.

Maxime Cressy won the title after defeating Arthur Rinderknech 6–7(4–7), 6–4, 6–4 in the final.

Seeds
All seeds receive a bye into the second round. • # 🇩🇪 Dominik Koepfer (third round)

• # 🇯🇵 Go Soeda (second round)

• # 🇦🇺 Christopher O'Connell (semifinals)

• # 🇨🇦 Brayden Schnur (second round)

• # 🇦🇺 Andrew Harris (third round)

• # 🇺🇸 Michael Mmoh (third round)

• # 🇦🇺 Max Purcell (third round)

• # 🇩🇴 Roberto Cid Subervi (quarterfinals)

• # 🇬🇧 Liam Broady (third round)

• # 🇩🇪 Tobias Kamke (quarterfinals)

• # 🇺🇸 Sebastian Korda (quarterfinals)

• # 🇫🇷 Arthur Rinderknech (final)

• # 🇰🇷 Nam Ji-sung (third round)

• # 🇺🇸 Maxime Cressy (champion)

• # 🇯🇵 Yosuke Watanuki (quarterfinals)

• # Gonçalo Oliveira (second round)