Men's singles
2017 Challenger Banque Nationale de Granby
Champion	Blaž Kavčič
Runner-up	Peter Polansky
Score	6–3, 2–6, 7–5

Frances Tiafoe was the defending champion but chose not to defend his title.

Blaž Kavčič won the title after defeating Peter Polansky 6–3, 2–6, 7–5 in the final.

Seeds

Draw

Finals

	Semifinals							Final
	1	Blaž Kavčič	6	6
		Brayden Schnur	2	2
								1	Blaž Kavčič	6	2	7
								2	Peter Polansky	3	6	5
	4	Denis Shapovalov	2	5
	2	Peter Polansky	6	7

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	B Kavčič	6	5	6
		S Bangoura	4	7	3			1	B Kavčič	6	7
		M Polmans	2	4				Q	L Broady	4	5
	Q	L Broady	6	6											1	B Kavčič	6	77
	Q	K Uchida	6	4	4										7	T Ito	1	65
		S Diez	3	6	6				S Diez	5	4
	WC	B Sigouin	66	64				7	T Ito	7	6
	7	T Ito	78	77																		1	B Kavčič	6	6
	3	G Soeda	3	6	77																		B Schnur	2	2
		L Harris	6	2	65			3	G Soeda	4	77	5
		B Schnur	6	6					B Schnur	6	65	7
		Y Takahashi	1	2												B Schnur	78	4	6
		H Moriya	4	7	4											M Purcell	66	6	3
		M Purcell	6	5	6				M Purcell	6	6
	Q	B Mousley	77	6				Q	B Mousley	2	4
	6	V Millot	64	3

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	5	J Jung	2	2
		M McDonald	6	6					M McDonald	6	6
		A Sarkissian	77	2	0r			WC	S Monette	1	1
	WC	Samuel Monette	64	6	1											M McDonald	3	6	3
		R Quiroz	77	3	1										4	D Shapovalov	6	4	6
		Y Bhambri	64	6	6				Y Bhambri	6	0	3
	Q	M Matosevic	5	3				4	D Shapovalov	4	6	6
	4	D Shapovalov	7	6																		4	D Shapovalov	2	5
	8	Y Uchiyama	6	6																		2	P Polansky	6	7
	WC	P Bester	4	4				8	Y Uchiyama	6	6
		T Chen	7	6					T Chen	4	4
	Alt	M Torpegaard	5	3											8	Y Uchiyama	3	4
	PR	A González	7	6											2	P Polansky	6	6
		F Peliwo	5	3				PR	A González	4	6	0
	WC	F Dancevic	64	69				2	P Polansky	6	3	6
	2	P Polansky	77	711

References

• Main Draw
• Qualifying Draw