2018 Calgary National Bank Challenger – Singles

This was the first edition of the tournament.

Ivo Karlović won the title after defeating Jordan Thompson 7–6(7–3), 6–3 in the final.

Seeds
• # 🇦🇺 Jordan Thompson (final)

• # Ivo Karlović (champion)

• # Jason Jung (second round)

• # 🇪🇸 Adrián Menéndez Maceiras (second round)

• # 🇳🇴 Casper Ruud (semifinals)

• # 🇦🇺 Alex Bolt (withdrew)

• # 🇬🇧 Jay Clarke (first round)

• # 🇪🇨 Roberto Quiroz (quarterfinals)