2023 Caribbean Open – Singles

This was the first edition of the tournament.

Singles
2023 Caribbean Open
Champion	Kei Nishikori
Runner-up	Michael Zheng
Score	6–2, 7–5

Main article: 2023 Caribbean Open

Kei Nishikori won the title after defeating Michael Zheng 6–2, 7–5 in the final in his first match since 2021.^[1] Nishikori became the first unranked player in history to win an ATP Challenger title.^[2]

Seeds

1. Wu Tung-lin (first round)
2. Nicolas Moreno de Alboran (first round)
3. Marc Polmans (first round)
4. Antoine Escoffier (first round)
5. Dane Sweeny (second round)
6. Yuta Shimizu (first round)
7. Mitchell Krueger (second round)
8. Alexis Galarneau (quarterfinals)

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• ITF = ITF entry
• PR = Protected ranking
• SR = Special ranking
• SE = Special exempt
• JE = Junior exempt
• JR = Junior Accelerator Programme entrant
• CO = College Accelerator Programme entrant
• NG = Next Gen Accelerator Program entrant
• w/o = Walkover
• r = Retired
• d = Defaulted

Finals

	Semifinals							Final
		Beibit Zhukayev	6	3	64
	Q	Michael Zheng	3	6	77
								Q	Michael Zheng	2	5
								WC	Kei Nishikori	6	7
	WC	Kei Nishikori	6	6
	Q	Gustavo Heide	4	2

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	T-l Wu	6	5	64
	WC	L Draxl	3	7	77			WC	L Draxl	77	6
	Q	C Sinclair	6	6				Q	C Sinclair	60	3
	WC	Alexander Bravo	2	0											WC	L Draxl	4	3
	Q	E Zhu	77	6												B Zhukayev	6	6
		V Durasovic	64	4				Q	E Zhu	6	5	2
		B Zhukayev	6	6					B Zhukayev	4	7	6
	6	Y Shimizu	3	4																			B Zhukayev	6	3	64
	4	A Escoffier	65	4																		Q	M Zheng	3	6	77
	LL	M Copil	77	6				LL	M Copil	1	3
		S Diez	3	0				Q	M Zheng	6	6
	Q	M Zheng	6	6											Q	M Zheng	6	0	6
		D Yevseyev	7	4	5										8	A Galarneau	3	6	3
		JL Reis da Silva	5	6	7				JL Reis da Silva	62	0
		P Kypson	3	0				8	A Galarneau	77	6
	8	A Galarneau	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	7	M Krueger	4	6	6
		P Gojowczyk	6	4	4			7	M Krueger	6	3	2
		Christian Langmo	2	4				WC	K Nishikori	4	6	6
	WC	K Nishikori	6	6											WC	K Nishikori	6	6
	PR	R Statham	6	64	7											A Walton	4	2
	Q	N Chappell	1	77	5			PR	R Statham	2	0
		A Walton	77	6					A Walton	6	6
	3	M Polmans	61	1																		WC	K Nishikori	6	6
	5	D Sweeny	4	7	6																	Q	G Heide	4	2
		S Mansouri	6	5	2			5	D Sweeny	4	63
	Q	B Tomic	79	6				Q	B Tomic	6	77
	PR	A Bolt	67	4											Q	B Tomic	63	77	1
	Q	G Heide	77	6											Q	G Heide	77	65	6
		T Schoolkate	63	3				Q	G Heide	6	6
	LL	A Rybakov	77	6				LL	A Rybakov	3	4
	2	N Moreno de Alboran	64	3