2023 JC Ferrero Challenger Open – Singles

Lukáš Klein was the defending champion^[1] but lost in the second round to Maximilian Marterer.

Singles
2023 JC Ferrero Challenger Open
Champion	Constant Lestienne
Runner-up	Hugo Grenier
Score	6–7(10–12), 6–2, 6–4

Main article: 2023 JC Ferrero Challenger Open

Constant Lestienne won the title after defeating Hugo Grenier 6–7^(10–12), 6–2, 6–4 in the final.

Seeds

1. Constant Lestienne (champion)
2. Alex Molčan (first round)
3. Pedro Martínez (second round)
4. Benoît Paire (second round)
5. Arthur Cazaux (second round)
6. Maximilian Marterer (semifinals)
7. Thiago Agustín Tirante (first round)
8. Mattia Bellucci (second round)

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
	1	Constant Lestienne	77	6
	6	Maximilian Marterer	63	4
								1	Constant Lestienne	610	6	6
									Hugo Grenier	712	2	4
		Hugo Grenier	4	6	6
		Dennis Novak	6	4	3

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	C Lestienne	6	7
		F Gaio	1	5				1	C Lestienne	6	6
	WC	Diego Augusto Barreto Sánchez	4	3					Em Nava	1	1
		Em Nava	6	6											1	C Lestienne	6	77
		F Maestrelli	4	6	4										WC	M Landaluce	3	65
	WC	M Landaluce	6	4	6			WC	M Landaluce	4	6	6
		R Brancaccio	2	1				5	A Cazaux	6	2	3
	5	A Cazaux	6	6																		1	C Lestienne	77	6
	4	B Paire	6	6																		6	M Marterer	63	4
	Q	D Cukierman	4	1				4	B Paire	2	3
	Q	M Damm	6	77				Q	M Damm	6	6
	Q	A Barroso Campos	4	65											Q	M Damm	5	5
		L Klein	6	6											6	M Marterer	7	7
	LL	D Cox	3	2					L Klein	3	5
		A Moro Cañas	4	4				6	M Marterer	6	7
	6	M Marterer	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	7	TA Tirante	4	4
	Q	M Echargui	6	6				Q	M Echargui	4	4
		M Neuchrist	4	3					H Grenier	6	6
		H Grenier	6	6												H Grenier	6	6
	Q	B Harris	6	65	6										Q	B Harris	3	4
		A Çelikbilek	2	77	1			Q	B Harris	6	6
		P Carreño Busta	3	5				3	P Martínez	1	2
	3	P Martínez	6	7																			H Grenier	4	6	6
	8	M Bellucci	6	7																			D Novak	6	4	3
	Q	A Santillan	4	5				8	M Bellucci	6	65	3
		A Andreev	6	1	4				E Ymer	3	77	6
		E Ymer	4	6	6											E Ymer	4	2
		F Ferreira Silva	6	6												D Novak	6	6
	WC	D Blanch	4	3					F Ferreira Silva	5	67
		D Novak	6	6					D Novak	7	79
	2	A Molčan	1	3