2023 Challenger Banque Nationale de Drummondville – Singles

Vasek Pospisil was the defending champion^[1] but chose not to defend his title.

Singles
2023 Challenger Banque Nationale de Drummondville
Champion	Zizou Bergs
Runner-up	James Duckworth
Score	6–4, 7–5

Main article: 2023 Challenger Banque Nationale de Drummondville

Zizou Bergs won the title after defeating James Duckworth 6–4, 7–5 in the final.

Seeds

1. Dominik Koepfer (quarterfinals)
2. James Duckworth (final)
3. Benoît Paire (second round)
4. Gabriel Diallo (withdrew)
5. Ryan Peniston (quarterfinals)
6. Zizou Bergs (champion)
7. Alexis Galarneau (second round)
8. Aziz Dougaz (quarterfinals)

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• ITF = ITF entry
• PR = Protected ranking
• SR = Special ranking
• SE = Special exempt
• JE = Junior exempt
• JR = Junior Accelerator Programme entrant
• CO = College Accelerator Programme entrant
• NG = Next Gen Accelerator Program entrant
• w/o = Walkover
• r = Retired
• d = Defaulted

Finals

	Semifinals							Final
	6	Zizou Bergs	w/o
		Michael Vrbenský
								6	Zizou Bergs	6	7
								2	James Duckworth	4	5
		Li Tu	4	3
	2	James Duckworth	6	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	D Koepfer	5	6	6
	Q	Luca Wiedenmann	7	2	2			1	D Koepfer	6	6
	LL	Olaf Pieczkowski	4	6	6			LL	O Pieczkowski	4	4
		A Paulson	6	3	1										1	D Koepfer	4	6	5
	Q	Benjamin Thomas George	6	7											6	Z Bergs	6	4	7
		B Lock	1	5				Q	BT George	3	2
		L Saville	1	1				6	Z Bergs	6	6
	6	Z Bergs	6	6																		6	Z Bergs	w/o
	Q	Colin Markes	4	6	3																		M Vrbenský
		M Vrbenský	6	3	6				M Vrbenský	64	6	7
		S Diez	4	79	1			SE	L Draxl	77	3	5
	SE	L Draxl	6	67	6											M Vrbenský	6	3	6
		C Broom	77	4	6										8	A Dougaz	2	6	4
	WC	J Boulais	64	6	2				C Broom	6	4	1
		M Kaśnikowski	4	6	5			8	A Dougaz	3	6	6
	8	A Dougaz	6	3	7

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	7	A Galarneau	6	3	6
		D Jordà Sanchis	3	6	4			7	A Galarneau	65	2
		M Janvier	6	63	3				L Tu	77	6
		L Tu	4	77	6											L Tu	6	7
		T Samuel	6	0	3											J Sousa	4	5
		J Sousa	3	6	6				J Sousa	6	77
	WC	JC Aguilar	3	4				3	B Paire	1	64
	3	B Paire	6	6																			L Tu	4	3
	5	R Peniston	6	6																		2	J Duckworth	6	6
	Q	K Pannu	3	1				5	R Peniston	6	0
	WC	D Martin	2					WC	D Martin	2	0r
	Q	Alexander Kotzen	1r												5	R Peniston	6	3	4
		T-S Kwiatkowski	77	0	7										2	J Duckworth	4	6	6
	Q	G Hussey	64	6	5				T-S Kwiatkowski	1	77	3
		C Kingsley	5	77	65			2	J Duckworth	6	63	6
	2	J Duckworth	7	62	77