1978 Australian Open – Men's singles

Guillermo Vilas defeated John Marks in the final, 6–4, 6–4, 3–6, 6–3 to win the men's singles tennis title at the 1978 Australian Open. It was his first Australian Open title and third major title overall.

Men's singles
1978 Australian Open
Champion	Guillermo Vilas
Runner-up	John Marks
Score	6–4, 6–4, 3–6, 6–3
Draw	64
Seeds	16

Main article: 1978 Australian Open

Vitas Gerulaitis was the reigning champion, but did not compete this year.

This tournament marked the final major appearance of four-time champion and former world No. 1 Ken Rosewall; he was defeated in the third round by Peter Feigl.

Seeds

The seeded players are listed below. Guillermo Vilas is the champion; others show the round in which they were eliminated.

1. Guillermo Vilas (champion)
2. José Luis Clerc (first round)
3. Arthur Ashe (semifinals)
4. Tim Gullikson (second round)
5. Wojtek Fibak (third round)
6. John Alexander (quarterfinals)
7. Ken Rosewall (third round)
8. Victor Amaya (second round)
9. Hank Pfister (semifinals)
10. Yannick Noah (first round)
11. Tony Roche (quarterfinals)
12. Peter Feigl (quarterfinals)
13. Kim Warwick (third round)
14. Geoff Masters (first round)
15. Bernard Mitton (second round)
16. Allan Stone (third round)

Qualifying

Main article: 1978 Australian Open – Men's singles qualifying

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

	Quarterfinals									Semifinals									Final
	1	Guillermo Vilas	3	6	3	6	6
	11	Tony Roche	6	1	6	3	2
										1	Guillermo Vilas	6	6	6
										9	Hank Pfister	2	0	4
		Paul Kronk	5	3	3
	9	Hank Pfister	7	6	6
																			1	Guillermo Vilas	6	6	3	6
																				John Marks	4	4	6	3
	12	Peter Feigl	6	2	6	2	7
	3	Arthur Ashe	4	6	4	6	9
										3	Arthur Ashe	4	2	6	6	7
											John Marks	6	6	2	1	9
	6	John Alexander	4	4	5
		John Marks	6	6	7

Section 1

	First round									Second round									Third round									Quarterfinals
	1	G Vilas	6	6	6	7
		T Rocavert	3	7	3	6				1	G Vilas	6	6	6
		B Drewett	4	6	6	6					B Drewett	4	4	3
		R Ruffels	6	4	2	1													1	G Vilas	6	6	6
		M Edmondson	3	6	6	7													16	A Stone	4	4	4
		B Fairlie	6	2	1	6					M Edmondson	4	6	3	4
		T Wilkison	3	2	3					16	A Stone	6	3	6	6
	16	A Stone	6	6	6																							1	G Vilas	3	6	3	6	6
	11	T Roche	6	6	6																							11	T Roche	6	1	6	3	2
		I Țiriac	3	0	3					11	T Roche	6	6	6
		G Hardie	6	6	6	6					G Hardie	3	4	4
		A Gardiner	7	2	4	1													11	T Roche	6	6	6
	Q	D Collings	6	4	6	6													Q	D Collings	1	2	3
		G Moretton	4	6	4	3				Q	D Collings	6	3	6	7
		S Menon	6	6	2					8	V Amaya	4	6	3	6
	8	V Amaya	7	7	6

Section 2

	First round									Second round									Third round									Quarterfinals
	4	T Gullikson	6	6	7
		P McNamee	2	2	6					4	T Gullikson	2	3	6
		C Kachel	2	7	2	2					P McNamara	6	6	7
		P McNamara	6	5	6	6														P McNamara	2	2	5
	Q	J DiLouie	6	6	6															P Kronk	6	6	7
		R Frawley	3	2	1					Q	J DiLouie	6	5	4	6	1
		P Kronk	7	2	6	6					P Kronk	2	7	6	4	6
	14	G Masters	5	6	3	1																							P Kronk	5	3	3
	9	H Pfister	6	6	6																							9	H Pfister	7	6	6
		J Smith	3	2	2					9	H Pfister	7	6	4	3	8
		R Drysdale	3	2	4						S Docherty	5	3	6	6	6
		S Docherty	6	6	6														9	H Pfister	6	7	6
		D Carter	4	0	7	6	2												5	W Fibak	3	6	1
		J James	6	6	6	4	6				J James	2	2	6	3
		D Whyte	4	1	2					5	W Fibak	6	6	4	6
	5	W Fibak	6	6	6

Section 3

	First round									Second round									Third round									Quarterfinals
	7	K Rosewall	6	6	6
	Q	C Stansbury	2	4	3					7	K Rosewall	2	7	7	7
		R Lewis	7	2	1	4					S Stewart	6	6	5	6
		S Stewart	6	6	6	6													7	K Rosewall	6	6	5	4	8
		I El Shafei	7	4	3	7	7												12	P Feigl	2	4	7	6	10
		B Giltinan	6	6	6	6	9				B Giltinan	2	6	5	1
		C Dibley	4	6	4	6				12	P Feigl	6	3	7	6
	12	P Feigl	6	1	6	7																						12	P Feigl	6	2	6	2	7
	13	K Warwick	6	6	6																							3	A Ashe	4	6	4	6	9
		C Freyss	4	4	4					13	K Warwick	7	6	6
		D Crealy	6	7	6						D Crealy	6	1	3
	Q	W Maher	4	5	3														13	K Warwick	6	2	5	6	3
		R Moore	7	4	6	6													3	A Ashe	2	6	7	4	6
	Q	R Krishnan	5	6	2	2					R Moore	4	4	3
		B Kleege	3	3	6					3	A Ashe	6	6	6
	3	A Ashe	6	6	7

Section 4

	First round									Second round									Third round									Quarterfinals
	6	J Alexander	6	7	6
		P Campbell	4	6	4					6	J Alexander	6	6	6
		DR Bohrnstedt	2	2	3						R Simpson	3	3	4
		R Simpson	6	6	6														6	J Alexander	6	6	6
	Q	A Jarrett	2	3	2															B Carmichael	3	2	2
		B Carmichael	6	6	6						B Carmichael	6	2	7	6
		C Letcher	3	3	7	1				15	B Mitton	4	6	6	3
	15	B Mitton	6	6	5	6																						6	J Alexander	4	4	5
	10	Y Noah	6	6	3	3	1																						J Marks	6	6	7
		R Case	4	4	6	6	6				R Case	1	4	1
		J Sadri	6	7	6						J Sadri	6	6	6
	Q	N Phillips	3	6	4															J Sadri	2	2	6	4
		P Dent	7	2	1	6	6													J Marks	6	6	4	6
		P Portes	6	6	6	2	1				P Dent	7	3	2	2
		J Marks	6								J Marks	6	6	6	6
	2	JL Clerc	7	r.

External links

• Association of Tennis Professionals (ATP) – 1978 Australian Open Men's Singles draw
• 1978 Australian Open – Men's draws and results at the International Tennis Federation