Singles
1971 National Indoor Championships
Champion	Ilie Năstase
Runner-up	Clark Graebner
Score	7–5, 6–4, 7–6(5–0)
Draw	32

The 1971 National Indoor Championships – Singles was an event of the 1971 National Indoor Championships tennis tournament held at the Hampton Roads Coliseum in Hampton, Virginia in the United States from March 1 through March 7, 1971. Stan Smith was the defending champion but did not take part in this edition. First-seeded Ilie Năstase won the singles title, defeating Ilie Năstase 7–5, 6–4, 7–6^(5–0) in the final. Năstase had survived five match points during his semifinal match against Željko Franulović.^[1][2]

Key

Finals

	Semifinals									Final
		Ilie Năstase	1	6	6	5	7
		Željko Franulović	6	0	2	7	5
											Ilie Năstase	7	6	7
											Clark Graebner	5	4	6
		Clark Graebner	6	6	7
		Ion Țiriac	2	2	5

Top half

	First Round							Second Round							Quarterfinals							Semifinals
		Ilie Năstase	6	6
		Bobby Heald	3	0					Ilie Năstase	6	6
		Richard Russell	6	4	6				Richard Russell	3	2
		Nikola Špear	2	6	4											Ilie Năstase	6	6
		Frank Froehling	4	6	7											Frank Froehling	4	1
		Peter Curtis	6	0	6				Frank Froehling	6	6
		Tom Gorman	1	7	6				Tom Gorman	1	4
		Ian Crookenden	6	5	4																		Ilie Năstase	1	6	6
		Željko Franulović	6	6																			Željko Franulović	6	0	2
		Ray Keldie	4	3					Željko Franulović	4	7	6
		Byron Bertram	7	3	7				Byron Bertram	6	5	4
		Ingo Buding	6	6	6											Željko Franulović	7	3	6
		José Edison Mandarino	6	6												Jan Kodeš	6	6	3
		Onny Parun	2	3					José Edison Mandarino	6	4	1
		Jan Kodeš	6	6					Jan Kodeš	4	6	6
		Hans Kary	2	3

Bottom half

	First Round							Second Round							Quarterfinals							Semifinals
		Clark Graebner	6	3
		Terry Addison	2	0r					Clark Graebner	6	6
		Martin Mulligan	4	6	6				Martin Mulligan	4	2
		Vladimír Zedník	6	0	0											Clark Graebner	5	6	6
		Tom Edlefsen	6	6												Jaime Fillol	7	3	1
		Péter Szőke	1	2					Tom Edlefsen	3	4
		Jaime Fillol	6	6					Jaime Fillol	6	6
		Frank Parker	3	4																			Clark Graebner	6	6	7
		Thomaz Koch	6	7																			Ion Țiriac	2	2	5
		Joaquín Loyo-Mayo	4	5					Thomaz Koch	6	5	6
		Milan Holeček	6	7					Milan Holeček	1	7	4
		Jim McManus	4	5												Thomaz Koch	5	7	1
		Ion Țiriac	6	7												Ion Țiriac	7	6	6
		Mike Belkin	3	6					Ion Țiriac	6	6	6
		Manuel Orantes	6	6					Manuel Orantes	7	0	3
		Gerald Battrick	3	3

References

External links

• ITF tournament edition details