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.
| 2018 Calgary National Bank Challenger | |
|---|---|
| Date | 15–21 October |
| Edition | 1st |
| Surface | Hard (indoor) |
| Location | Calgary, Canada |
| Champions | |
| Singles | |
 Ivo Karlović | |
| Doubles | |
 Robert Galloway / Nathan Pasha | |
Singles entrants
editSeeds
edit| Country | Player | Rank | Seed |
|---|---|---|---|
 AUS
|
Jordan Thompson | 105 | 1 |
| CRO
|
Ivo Karlović | 117 | 2 |
 TPE
|
Jason Jung | 123 | 3 |
 ESP
|
Adrián Menéndez Maceiras | 132 | 4 |
 NOR
|
Casper Ruud | 137 | 5 |
| AUS |
|||
 GBR
|
Jay Clarke | 177 | 7 |
 ECU
|
Roberto Quiroz | 190 | 8 |
Other entrants
editThe 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:
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
editSingles
edit- Ivo Karlović def.
Jordan Thompson 7–6(7–3), 6–3.
Doubles
edit- Robert Galloway / Nathan Pasha def. Matt Reid / John-Patrick Smith 6–4, 4–6, [10–6].