Singles
2023 Split Open
Final
Champion	Zsombor Piros
Runner-up	Norbert Gombos
Score	7–6(7–2), 7–6(11–9)
Events
Singles Doubles
← 2022 · Split Open · 2024 →

Christopher O'Connell was the defending champion^[1] but lost in the semifinals to Zsombor Piros.

Piros won the title after defeating Norbert Gombos 7–6^(7–2), 7–6^(11–9) in the final.

	Semifinals							Final
	1	Christopher O'Connell	2	4
		Zsombor Piros	6	6
									Zsombor Piros	77	711
								3	Norbert Gombos	62	69
	3	Norbert Gombos	6	6
	PR	Marc Polmans	2	4

	First round							Second round							Quarterfinals							Semifinals
	1	C O'Connell	77	6
	Q	D Sweeny	65	2				1	C O'Connell	6	6
		E Furness	3	5				Q	N Fatić	1	3
	Q	N Fatić	6	7											1	C O'Connell	6	7
		S Rodríguez Taverna	6	3	4										WC	D Prižmić	2	5
	WC	D Prižmić	4	6	6			WC	D Prižmić	7	6
	Q	A Cazaux	6	7				Q	A Cazaux	5	2
	7	M Bellucci	3	5																		1	C O'Connell	2	4
	4	F Marozsán	3	3																			Z Piros	6	6
		Z Piros	6	6					Z Piros	6	77
	Alt	H Mayot	2	6	2			SE	S Mochizuki	4	61
	SE	S Mochizuki	6	1	6											Z Piros	77	5	6
		G Debru	6	2	4										Q	R Albot	65	7	3
		M Guinard	4	6	6				M Guinard	5	3
	Q	R Albot	6	7				Q	R Albot	7	6
	8	K Uchida	1	5

	First round							Second round							Quarterfinals							Semifinals
	5	L Klein	6	3	65
		M Valkusz	3	6	77				M Valkusz	6	1	6
		F Maestrelli	77	6					F Maestrelli	2	6	2
		H Međedović	63	1												M Valkusz	610	3
	Q	K Żuk	6	710											3	N Gombos	712	6
		M Navone	4	68				Q	K Żuk	3	6	66
		F Cobolli	1	6	1			3	N Gombos	6	3	78
	3	N Gombos	6	3	6																	3	N Gombos	6	6
	6	F Misolic	6	6																		PR	M Polmans	2	4
		ND Ionel	3	3				6	F Misolic	4	78	77
		K Coppejans	6	3	3			Q	E Ymer	6	66	61
	Q	E Ymer	3	6	6										6	F Misolic	3	3
	WC	D Ajduković	63	6	6										PR	M Polmans	6	6
	WC	K Ivanovski	77	1	1			WC	D Ajduković	65	65
	PR	M Polmans	6	4	6			PR	M Polmans	77	77
	2	J Rodionov	4	6	3

• Main draw
• Qualifying draw