2025 Challenger Concepción – Singles

Gonzalo Bueno was the defending champion^[1] but lost in the second round to Emilio Nava.

Nava won the title after defeating Nicolás Kicker 6–1, 7–6^(7–3) in the final.^[2][3]

	Semifinals							Final
	Q	Nicolás Kicker	4	7	6
		Matías Soto	6	5	3
								Q	Nicolás Kicker	1	63
								8	Emilio Nava	6	77
	8	Emilio Nava	6	6
		Genaro Alberto Olivieri	2	4

	First round							Second round							Quarterfinals							Semifinals
	LL	Yuki Mochizuki	3	1
		Guido Iván Justo	6	6					GI Justo	7	6
	WC	Nicolás Villalón	3	3					R Olivo	5	4
		R Olivo	6	6												GI Justo	4	6	1
		H Casanova	2	5											Q	N Kicker	6	1	6
		JP Varillas	6	7					JP Varillas	0	1
	Q	N Kicker	6	6				Q	N Kicker	6	6
	6	AD Vallejo	1	1																		Q	N Kicker	4	7	6
	3	RA Burruchaga	6	7																			M Soto	6	5	3
		JB Torres	2	5				3	RA Burruchaga	6	4	6
	Q	C Huertas del Pino	6	77				Q	C Huertas del Pino	1	6	3
	Q	V Orlov	3	64											3	RA Burruchaga	5	4
		M Soto	6	6												M Soto	7	6
		P Nesterov	1	4					M Soto	77	3	6
	Q	V Aboian	6	5	6			Q	V Aboian	65	6	1
	5	F Mena	3	7	1

	First round							Second round							Quarterfinals							Semifinals
	8	Em Nava	6	6
		D Dutra da Silva	2	4				8	Em Nava	6	6
		G Bueno	6	6					G Bueno	0	3
	WC	D Dedura-Palomero	3	2											8	Em Nava	6	6
		E Couacaud	69	6	4											JL Reis da Silva	2	3
	Q	P Boscardin Dias	711	4	6			Q	P Boscardin Dias	6	5	3
		JL Reis da Silva	6	6					JL Reis da Silva	2	7	6
	4	T Barrios Vera	3	2																		8	Em Nava	6	6
	7	A Collarini	6	7																			GA Olivieri	2	4
	Q	J Pereira	1	5				7	A Collarini	77	65	3
	Alt	G Villanueva	5	1					GA Olivieri	63	77	6
		GA Olivieri	7	6												GA Olivieri	710	6
		Á Guillén Meza	2	3											2	DE Galán	68	4
		M Pucinelli de Almeida	6	6					M Pucinelli de Almeida	4	3
		R Bertola	3	1				2	DE Galán	6	6
	2	DE Galán	6	6

• Main draw
• Qualifying draw