Men's singles
2023 Calgary National Bank Challenger
Final
Champion	Liam Draxl
Runner-up	Dominik Koepfer
Score	6–4, 6–3
Events
Singles men women Doubles men women
← 2022 · Calgary National Bank Challenger · 2024 →

Dominik Koepfer was the defending champion^[1] but lost in the final to Liam Draxl.

Draxl won the title after defeating Koepfer 6–4, 6–3 in the final.

	Semifinals							Final
	1	Dominik Koepfer	w/o
	4	Gabriel Diallo
								1	Dominik Koepfer	4	3
								WC	Liam Draxl	6	6
		Andres Martin	65	7	3
	WC	Liam Draxl	77	5	6

	First round							Second round							Quarterfinals							Semifinals
	1	D Koepfer	6	6
		C Broom	2	3				1	D Koepfer	6	6
		C Chidekh	6	6					C Chidekh	3	3
		M Vrbenský	4	2											1	D Koepfer	6	6
	Q	K Pannu	6	6											6	Z Bergs	1	3
		D Jordà Sanchis	1	4				Q	K Pannu	4	5
		B Lock	77	3	3			6	Z Bergs	6	7
	6	Z Bergs	63	6	6																	1	D Koepfer	w/o
	4	G Diallo	4	710	6																	4	G Diallo
		A Paulson	6	68	4			4	G Diallo	5	7	6
	Q	Patrick Brady	7	4	2				J Sousa	7	5	3
		J Sousa	5	6	6										4	G Diallo	6	6
	Q	JC Aguilar	3	6	3										8	A Dougaz	3	2
		S Diez	6	1	6				S Diez	3	2
	WC	Dan Martin	2	5				8	A Dougaz	6	6
	8	A Dougaz	6	7

	First round							Second round							Quarterfinals							Semifinals
	5	R Peniston	3	4
		A Martin	6	6					A Martin	7	6
		T Samuel	78	710					T Samuel	5	4
	Q	R Seggerman	66	68												A Martin	6	6
	Q	Enzo Wallart	1	7	6										Q	E Wallart	1	1
		V Durasovic	6	5	3			Q	E Wallart	711	77
		M Kaśnikowski	6	63	6				M Kaśnikowski	69	64
	3	B Paire	3	77	3																		A Martin	65	7	3
	7	K Coppejans	4	1																		WC	L Draxl	77	5	6
	WC	L Draxl	6	6				WC	L Draxl	6	6
		L Saville	79	4	6				L Saville	1	2
		T Schoolkate	67	6	3										WC	L Draxl	7	5	6
	Q	I Montes de la Torre	6	6											Q	I Montes de la Torre	5	7	1
	WC	J Boulais	4	1				Q	I Montes de la Torre	6	6
		L Tu	2	4				2	J Duckworth	3	2
	2	J Duckworth	6	6

• Main draw
• Qualifying draw