Men's singles
2017 Winnipeg National Bank Challenger
Champion	Blaž Kavčič
Runner-up	Peter Polansky
Score	7–5, 3–6, 7–5

Go Soeda was the defending champion but chose not to defend his title.

Blaž Kavčič won the title after defeating Peter Polansky 7–5, 3–6, 7–5 in the final.

Seeds

Draw

Finals

	Semifinals							Final
	1	Blaž Kavčič	77	6
		Edan Leshem	60	3
								1	Blaž Kavčič	7	3	7
								2	Peter Polansky	5	6	5
	4	Yasutaka Uchiyama	4	6	2
	2	Peter Polansky	6	4	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	B Kavčič	4	6	7
		F Dancevic	6	3	5			1	B Kavčič	6	6
		K Uchida	6	6					K Uchida	3	4
	Q	LD Martínez	3	1											1	B Kavčič	6	6
		B Mousley	6	6												R Sarmiento	2	2
	WC	Hugo Di Feo	1	1					B Mousley	6	65	4
		R Sarmiento	6	6					R Sarmiento	1	77	6
	6	S Diez	1	4																		1	B Kavčič	77	6
	3	T Ito	2	66																			E Leshem	60	3
	Q	R Schneider	6	78				Q	R Schneider	6	3	3
		E Leshem	77	2	6				E Leshem	3	6	6
		A Bega	63	6	3											E Leshem	77	6
		Y Takahashi	6	6												Y Takahashi	64	3
	WC	JM Lin	2	0					Y Takahashi	7	2	6
	WC	Samuel Monette	6	6				WC	S Monette	5	6	2
	5	H Moriya	0	1

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	8	B Rola	77	78
		P Bester	64	66				8	B Rola	4	4
		M Purcell	6	6					M Purcell	6	6
		T Chen	2	4												M Purcell	4	0
		F Tearney	3	1											4	Y Uchiyama	6	6
		M Giron	6	6					M Giron	4	6	2
		S Bangoura	6	4	3			4	Y Uchiyama	6	4	6
	4	Y Uchiyama	3	6	6																	4	Y Uchiyama	4	6	2
	7	B Schnur	6	77																		2	P Polansky	6	4	6
		F Peliwo	2	64				7	B Schnur	6	6
		A Sarkissian	62	4				Q	L Bambridge	4	4
	Q	L Bambridge	77	6											7	B Schnur	3	78	62
	WC	Nicaise Muamba	1	2											2	P Polansky	6	66	77
	Q	A Rybakov	6	6				Q	A Rybakov	4	4
		C Harrison	3	2				2	P Polansky	6	6
	2	P Polansky	6	6

References

• Main Draw
• Qualifying Draw