2023 Hamburg Ladies & Gents Cup – Men's singles

Alexander Ritschard was the defending champion but chose not to defend his title.

Men's singles
2023 Hamburg Ladies & Gents Cup
Champion	Illya Marchenko
Runner-up	Dennis Novak
Score	6–2, 6–3

Main article: 2023 Hamburg Ladies & Gents Cup

Illya Marchenko won the title after defeating Dennis Novak 6–2, 6–3 in the final.

Seeds

1. Dennis Novak (final)
2. Adam Walton (quarterfinals)
3. Máté Valkusz (quarterfinals)
4. Rudolf Molleker (first round)
5. Frederico Ferreira Silva (first round)
6. Cem İlkel (second round)
7. Maximilian Neuchrist (second round)
8. Oleksii Krutykh (first round)

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• SE = Special exempt
• PR = Protected ranking
• ITF = ITF entry
• JE = Junior exempt
• w/o = Walkover
• r = Retired
• d = Defaulted
• SR = Special ranking

Finals

	Semifinals							Final
	1	Dennis Novak	4	6	6
	Q	Tristan Lamasine	6	3	4
								1	Dennis Novak	2	3
									Illya Marchenko	6	6
		Billy Harris	5	6	5
		Illya Marchenko	7	3	7

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	D Novak	77	6
	WC	M Topo	62	1				1	D Novak	6	7
	Q	Lucas Gerch	3	65					A Bellier	3	5
		A Bellier	6	77											1	D Novak	6	6
		D Added	2	7	4										Q	J Barranco Cosano	2	2
	Q	J Barranco Cosano	6	5	6			Q	J Barranco Cosano	6	2	6
		G Debru	6	6					G Debru	3	6	4
	5	F Ferreira Silva	4	1																		1	D Novak	4	6	6
	4/WC	R Molleker	3	4																		Q	T Lamasine	6	3	4
	Q	A Santillan	6	6				Q	A Santillan	6	7
		N Gombos	2	5				WC	M Möller	4	5
	WC	M Möller	6	7											Q	A Santillan	4	2
	Q	T Lamasine	6	6											Q	T Lamasine	6	6
		M Guinard	0	0				Q	T Lamasine	7	6
		M Echargui	4	4				7	M Neuchrist	5	4
	7	M Neuchrist	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	6	C İlkel	6	3
		H Laaksonen	2	1r				6	C İlkel	64	1
		N Sánchez Izquierdo	4	2					B Harris	77	6
		B Harris	6	6												B Harris	4	6	6
		S Napolitano	1	6	6										3	M Valkusz	6	0	2
	Q	D Masur	6	2	4				S Napolitano	77	4	4
		N Serdarušić	4	4				3	M Valkusz	65	6	6
	3	M Valkusz	6	6																			B Harris	5	6	5
	8	O Krutykh	2	3																			I Marchenko	7	3	7
		I Marchenko	6	6					I Marchenko	6	3	77
	Q	M Sasikumar	5	63					A Çelikbilek	4	6	63
		A Çelikbilek	7	77												I Marchenko	6	6
	Alt	K Ivanovski	2	4											2	A Walton	4	1
		J Sels	6	6					J Sels	6	3	3
	Alt	E Kırkın	2	4				2	A Walton	3	6	6
	2	A Walton	6	6

External links

• Main draw
• Qualifying draw