2025 Arizona Tennis Classic – Singles

Singles
2025 Arizona Tennis Classic
Champion	João Fonseca
Runner-up	Alexander Bublik
Score	7–6(7–5), 7–6(7–0)

Nuno Borges was the two-time defending champion^[1] but lost in the semifinals to Alexander Bublik.

João Fonseca won the title after defeating Bublik 7–6^(7–5), 7–6^(7–0) in the final.^[2]

The top four seeds received a bye into the second round.

	Semifinals							Final
	1	Nuno Borges	3	4
		Alexander Bublik	6	6
									Alexander Bublik	65	60
									João Fonseca	77	77
		João Fonseca	6	6
		Kei Nishikori	3	3

	First round							Second round							Quarterfinals							Semifinals
								1	N Borges	6	7
		J Fearnley	77	6					J Fearnley	2	5
		J Duckworth	63	3											1	N Borges	6	6
	WC	C Smith	6	7											WC	C Smith	4	4
	Alt	A Shevchenko	1	5				WC	C Smith	6	77
	Alt	C Eubanks	62	1				7	R Safiullin	4	62
	7	R Safiullin	77	6																		1	N Borges	3	4
																							A Bublik	6	6
								3	P Martínez	4	3
		C Moutet	6	6					C Moutet	6	6
	Q	N Basilashvili	3	2												C Moutet	6	64	5
		R Hijikata	77	77												A Bublik	2	77	7
	WC	B Holt	60	63					R Hijikata	2	7	3
		A Bublik	6	3	6				A Bublik	6	5	6
	5	A Vukic	3	6	3

	First round							Second round							Quarterfinals							Semifinals
	8	A Rinderknech	6	5	5
	Alt	R Opelka	4	7	7			Alt	R Opelka	66	3
		A Walton	2	4					H Gaston	78	6
		H Gaston	6	6												H Gaston	4	4
		P Kotov	2	4												J Fonseca	6	6
		J Fonseca	6	6					J Fonseca	6	4	6
								4	J-L Struff	1	6	3
																							J Fonseca	6	6
	6	L Nardi	4	3																			K Nishikori	3	3
		K Nishikori	6	6					K Nishikori	6	2
	Q	M Kukushkin	6	6				Q	M Kukushkin	3	1r
	Q	Y Uchiyama	4	2												K Nishikori	6	4	6
	Q	L Tu	4	2											2	F Cobolli	2	6	4
	WC	E Spizzirri	6	6				WC	E Spizzirri	3	7	5
								2	F Cobolli	6	5	7

• Main draw
• Qualifying draw