Arthur Ashe was the defending champion of the singles event at the ABN World Tennis Tournament, but did not participate in this edition. First-seeded Dick Stockton won the singles title after a victory in the final against second-seeded Ilie Năstase 2–6, 6–3, 6–3.^[1]

	First round							Second round							Semifinals							Finals
	1	Dick Stockton	6	6
		Harold Solomon	3	4
								1	Dick Stockton	6	6
									Vijay Amritraj	1	3
		Vijay Amritraj	1	7	6
		Manuel Orantes	6	66	2
															1	Dick Stockton	66	7	6
																Wojtek Fibak	7	65	4
		Corrado Barazzutti	6	3	6
		Raymond Moore	4	6	4
									Corrado Barazzutti	0	1
									Wojtek Fibak	6	6
		Wojtek Fibak	6	4	6
	3	Eddie Dibbs	2	6	4
																						1	Dick Stockton	2	6	6
																						2	Ilie Năstase	6	3	3
	4	Cliff Drysdale	7	7
		Onny Parun	64	64
								4	Cliff Drysdale	3	3
									Mark Cox	6	6
		Tom Okker	3	6	3
		Mark Cox	6	4	6
																Mark Cox	4	65
															2	Ilie Năstase	6	7
		John Alexander	6	1
		Adriano Panatta	2	r
									John Alexander	4	2
								2	Ilie Năstase	6	6
		Jan Kodeš	4	4
	2	Ilie Năstase	6	6

• ITF tournament edition details