Singles
2020 Delray Beach Open
Final
Champion	Reilly Opelka
Runner-up	Yoshihito Nishioka
Score	7–5, 6–7(4–7), 6–2
Details
Draw	32 (4 Q / 3 WC )
Seeds	8
Events
Singles Doubles
← 2019 · Delray Beach Open · 2021 →

Radu Albot was the defending champion,^[1] but lost in the first round to Jack Sock.

Reilly Opelka won the title, defeating Yoshihito Nishioka in the final, 7–5, 6–7^(4–7), 6–2. Opelka saved a match point against Milos Raonic in the semifinals.

	Semifinals							Final
	6	Ugo Humbert	6	4	0
		Yoshihito Nishioka	1	6	6
									Yoshihito Nishioka	5	77	2
								4	Reilly Opelka	7	64	6
	4	Reilly Opelka	4	78	6
	2	Milos Raonic	6	66	3

	First round							Second round							Quarterfinals							Semifinals
	LL	DE Galán	2	4
		T Paul	6	6					T Paul	5	64
	Q	E Gómez	63	2					F Tiafoe	7	77
		F Tiafoe	77	6												F Tiafoe	1	2
		M Kecmanović	6	0											6	U Humbert	6	6
		J Thompson	2	0r					M Kecmanović	4	66
	LL	S Kozlov	77	3	1			6	U Humbert	6	78
	6	U Humbert	65	6	6																	6	U Humbert	6	4	0
	3	T Fritz	4	77	4																		Y Nishioka	1	6	6
	Q	C Norrie	6	64	6			Q	C Norrie	5	2
		J Veselý	64	1				WC	B Nakashima	7	6
	WC	B Nakashima	77	6											WC	B Nakashima	6	65	4
	Q	N Rubin	6	4												Y Nishioka	3	77	6
	SE	J Jung	3	3r				Q	N Rubin	1	2
		Y Nishioka	3	6	6				Y Nishioka	6	6
	5	J Millman	6	4	2

	First round							Second round							Quarterfinals							Semifinals
	7	A Mannarino	6	3	2
		S-w Kwon	1	6	6				S-w Kwon	6	3	77
	WC	R Harrison	6	6				WC	R Harrison	4	6	60
		D Džumhur	3	2												S-w Kwon	3	4
	PR	M McDonald	6	77											4	R Opelka	6	6
		Y Uchiyama	2	65				PR	M McDonald	3	4
	Q	E Gulbis	77	4	64			4	R Opelka	6	6
	4	R Opelka	65	6	77																	4	R Opelka	4	78	6
	8	R Albot	6	3	62																	2	M Raonic	6	66	3
	WC	J Sock	3	6	77			WC	J Sock	4	7	1
		H Laaksonen	65	4					S Johnson	6	5	6
		S Johnson	77	6												S Johnson	66	3
	PR	C-M Stebe	6	3	6										2	M Raonic	78	6
	LL	B Tomic	2	6	2			PR	C-M Stebe	5	3
	LL	D Istomin	2	2				2	M Raonic	7	6
	2	M Raonic	6	6

	First round							Qualifying competition
	1	Cameron Norrie	6	6
		Peter Torebko	2	2
								1	Cameron Norrie	4	6	77
									Mitchell Krueger	6	2	65
		Mitchell Krueger	6	78
	7	Danilo Petrović	4	66

	First round							Qualifying competition
	Alt	Pol Toledo Bagué	1	3
		Bernard Tomic	6	6
									Bernard Tomic	2	0
									Ernests Gulbis	6	6
		Ernests Gulbis	6	6
	5	Daniel Elahi Galán	2	4

	First round							Qualifying competition
	3	Paolo Lorenzi	5	65
		Noah Rubin	7	77
									Noah Rubin	6	3	78
								8	Denis Istomin	4	6	66
		Guillermo García López	5	2
	8	Denis Istomin	7	6

	First round							Qualifying competition
	4	Alex Bolt	6	4	2
	WC	Stefan Kozlov	4	6	6
								WC	Stefan Kozlov	3	2
								6	Emilio Gómez	6	6
	WC	Preston Brown	2	0
	6	Emilio Gómez	6	6

• Main draw
• Qualifying draw