Singles
2018 Calgary National Bank Challenger
Champion	Ivo Karlović
Runner-up	Jordan Thompson
Score	7–6(7–3), 6–3

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

Draw

Finals

	Semifinals							Final
	1	Jordan Thompson	65	6	77
	5	Casper Ruud	77	0	64
								1	Jordan Thompson	63	3
								2	Ivo Karlović	77	6
	Q	Borna Gojo	63	62
	2	Ivo Karlović	77	77

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	J Thompson	6	77
	LL	Laurent Rochette	2	65				1	J Thompson	6	6
	WC	A Galarneau	6	6				WC	A Galarneau	2	0
	Q	Pablo Vivero González	2	4											1	J Thompson	6	6
		E Couacaud	6	4	6											E Couacaud	3	4
		R Ortega Olmedo	2	6	3				E Couacaud	7	7
		J-P Smith	77	77					J-P Smith	5	5
	Q	T Fawcett	64	63																		1	J Thompson	65	6	77
	4	A Menéndez Maceiras	4	7	7																	5	C Ruud	77	0	64
		K King	6	5	5			4	A Menéndez Maceiras	6	2	64
		B Schnur	4	6	6				B Schnur	4	6	77
		T Robredo	6	1	4											B Schnur	6	3	4
	Alt	S Kozlov	3	3											5	C Ruud	4	6	6
		J Choinski	6	6					J Choinski	3	2
		A González	6	5	63			5	C Ruud	6	6
	5	C Ruud	3	7	77

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	7	J Clarke	5	0
		C Altamirano	7	6					C Altamirano	7	66	1
	WC	Pavel Krainik	4	6	3				F Peliwo	5	78	6
		F Peliwo	6	3	6											F Peliwo	0	3
	WC	Harrison Scott	0	1											Q	B Gojo	6	6
	Q	B Gojo	6	6				Q	B Gojo	77	6
	WC	S Diez	3	77	3			3	J Jung	62	2
	3	J Jung	6	60	6																	Q	B Gojo	63	62
	8	R Quiroz	1	7	6																	2	I Karlović	77	77
	Q	V Millot	6	5	1			8	R Quiroz	6	6
	Alt	C İlkel	7	7				Alt	C İlkel	4	3
		N Serdarušić	5	5											8	R Quiroz	64	6	64
		M Bourgue	63	6	6										2	I Karlović	77	4	77
		K Uchida	77	2	2				M Bourgue	64	6	3
		E King	65	78	63			2	I Karlović	77	4	6
	2	I Karlović	77	66	77

References

• Main Draw
• Qualifying Draw