Men's singles
1978 Australian Open
Final
Champion	Guillermo Vilas
Runner-up	John Marks
Score	6–4, 6–4, 3–6, 6–3
Details
Draw	64
Seeds	16
Events
Singles men women boys girls Doubles men women mixed boys girls WC Singles men women quad WC Doubles men women quad Legends men women mixed
← 1977 · Australian Open · 1979 →

Guillermo Vilas defeatedJohn Marks in the final, 6–4, 6–4, 3–6, 6–3 to win the men's singles tennis title at the1978 Australian Open. It was his firstAustralian Open title and thirdmajor title overall.

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. 1Ken Rosewall; he was defeated in the third round byPeter Feigl.

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

Key

	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

	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

	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

	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

	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.

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

• 1978 Australian Open
• 1978 Grand Prix (tennis)

• Articles with short description
• Short description is different from Wikidata