2025 Hamburg Ladies & Gents Cup – Men's singles

Men's singles
2025 Hamburg Ladies & Gents Cup
Champion	Justin Engel
Runner-up	Federico Cinà
Score	7–5, 7–6(7–4)

Henri Squire was the defending champion^[1] but lost in the quarterfinals to George Loffhagen.

Justin Engel won the title after defeating Federico Cinà 7–5, 7–6^(7–4) in the final.^[2] Engel overtook Fonseca as the youngest Challenger winner of 2025, and was the fifth-youngest German champion in Challenger history.^[3]

Key

	Semifinals							Final
	7	Alejandro Moro Cañas	63	4
	4	Justin Engel	77	6
								4	Justin Engel	7	77
								6	Federico Cinà	5	64
	5	George Loffhagen	65	4
	6	Federico Cinà	77	6

	First round							Second round							Quarterfinals							Semifinals
	1	D Mérida	5	6	63
		M Geerts	7	2	77				M Geerts	5	3
	PR	A Andreev	3	4				Q	B Gadamauri	7	6
	Q	Buvaysar Gadamauri	6	6											Q	B Gadamauri	6	3	5
		C Negritu	4	2											7	A Moro Cañas	1	6	7
		Mathys Erhard	6	6					M Erhard	64	4
	Q	Jannik Opitz	6	63	2			7	A Moro Cañas	77	6
	7	A Moro Cañas	4	77	6																	7	A Moro Cañas	63	4
	4	J Engel	77	712																		4	J Engel	77	6
	Q	Sander Jong	64	610				4	J Engel	2	6	77
	PR	C-M Stebe	6	6				PR	C-M Stebe	6	3	63
	WC	N McDonald	4	4											4	J Engel	4	77	77
	WC	Jamie Mackenzie	6	6											8	M Dodig	6	64	65
	PR	F Forti	2	3				WC	J Mackenzie	1	77	3
		E Coulibaly	4	3				8	M Dodig	6	65	6
	8	M Dodig	6	6

	First round							Second round							Quarterfinals							Semifinals
	5	G Loffhagen	610	7	6
		M Topo	712	5	1			5	G Loffhagen	w/o
	Q	Pedro Vives Marcos	4	1					D Glinka
		D Glinka	6	6											5	G Loffhagen	6	77
		M Martineau	6	6												H Squire	4	65
	Q	M Möller	3	1					M Martineau	62	4
		H Squire	6	6					H Squire	77	6
	3	G Onclin	4	0																		5	G Loffhagen	65	4
	6	F Cinà	77	5	6																	6	F Cinà	77	6
	Q	M Karol	65	7	4			6	F Cinà	6	6
		D Kuzmanov	2	6	6				D Kuzmanov	4	1
	WC	Mika Petkovic	6	2	4										6	F Cinà	6	6
	NG	Petr Brunclík	1	2												T Gentzsch	2	2
		Tom Gentzsch	6	6					T Gentzsch	5	3
	SE	M Mrva	6	63	4			2	C Rodesch	7	1r
	2	C Rodesch	4	77	6

• Main draw
• Qualifying draw