2025 Engie Open Florianópolis – Singles

Singles
2025 Engie Open Florianópolis
Champion	Gustavo Heide
Runner-up	Andrea Collarini
Score	6–2, 6–3

Enzo Couacaud was the defending champion^[1] but chose not to defend his title after retiring from professional tennis earlier in the year.^[2]

Gustavo Heide won the title after defeating Andrea Collarini 6–2, 6–3 in the final.^[3]

Key

	Semifinals							Final
		Daniel Dutra da Silva	2	2
		Gustavo Heide	6	6
									Gustavo Heide	6	6
								8	Andrea Collarini	2	3
	8	Andrea Collarini	6	6
	5	Juan Carlos Prado Ángelo	4	3

	First round							Second round							Quarterfinals							Semifinals
	1	JL Reis da Silva	6	6
	Alt	B Kuzuhara	1	3				1	JL Reis da Silva	6	63	2
		Guido Iván Justo	6	4	7				GI Justo	4	77	6
	Alt	João Eduardo Schiessl	4	6	5											GI Justo	5	1
	JR	Miguel Tobón	1	62												D Dutra da Silva	7	6
		JB Torres	6	77					JB Torres	5	6	4
		D Dutra da Silva	6	6					D Dutra da Silva	7	2	6
	6	S Rodríguez Taverna	3	4																			D Dutra da Silva	2	2
	4	D Popko	0r																				G Heide	6	6
		M Alves	2						M Alves	5	2
		G Heide	6	6					G Heide	7	6
	WC	Leonardo Storck França	1	2												G Heide	6	5
	Q	Nicolas Zanellato	6	3	2										7	N Kicker	2	1r
		G Villanueva	3	6	6				G Villanueva	2	3
		M Pucinelli de Almeida	4	6	4			7	N Kicker	6	6
	7	N Kicker	6	3	6

	First round							Second round							Quarterfinals							Semifinals
	8	A Collarini	6	6
	LL	Santiago de la Fuente	2	4				8	A Collarini	6	6
	Q	Máximo Zeitune	77	6				Q	M Zeitune	1	3
	WC	J Pereira	64	3											8	A Collarini	6	7
	Alt	E Ribeiro	6	6											Alt	E Ribeiro	2	5
		P Boscardin Dias	3	2				Alt	E Ribeiro	3	6	6
		C Negritu	4	77	65			3	F Díaz Acosta	6	4	4
	3	F Díaz Acosta	6	62	77																	8	A Collarini	6	6
	5	JC Prado Ángelo	6	6																		5	JC Prado Ángelo	4	3
	Q	F Zeballos	4	3				5	JC Prado Ángelo	710	6
	WC	Bruno Fernandez	6	65	6			WC	B Fernandez	68	3
	Q	Valentín Basel	2	77	3										5	JC Prado Ángelo	6	7
	Q	O Luz	3	6	6											P Sakamoto	4	5
	Q	Carlos María Zárate	6	2	4			Q	O Luz	4	6	5
		P Sakamoto	4	7	6				P Sakamoto	6	4	7
	2	GA Olivieri	6	5	1

• Main draw
• Qualifying draw