- Source: 2018 Calgary National Bank Challenger
- 2018 Calgary National Bank Challenger
- 2018 Calgary National Bank Challenger – Doubles
- 2018 Calgary National Bank Challenger – Singles
- 2020 Calgary National Bank Challenger
- 2020 Calgary National Bank Challenger – Doubles
- Calgary Challenger
- 2020 Calgary National Bank Challenger – Singles
- Calgary
- 2018 Winnipeg National Bank Challenger
- ATP Challenger Tour
The 2018 Calgary National Bank Challenger was a professional tennis tournament played on indoor hard courts. It was the first edition of the tournament and part of the 2018 ATP Challenger Tour. It took place in Calgary, Canada.
Singles entrants
= Seeds
== Other entrants
=The following players received wildcards into the singles main draw:
Steven Diez
Alexis Galarneau
Pavel Krainik
Harrison Scott
The following players received entry into the singles main draw as alternates:
Cem İlkel
Stefan Kozlov
The following players received entry from the qualifying draw:
Tom Fawcett
Borna Gojo
Vincent Millot
Pablo Vivero González
The following player received entry as a lucky loser:
Laurent Rochette
Champions
= Singles
=Ivo Karlović def. Jordan Thompson 7–6(7–3), 6–3.
= Doubles
=Robert Galloway / Nathan Pasha def. Matt Reid / John-Patrick Smith 6–4, 4–6, [10–6].