Singles
1920 Australasian Championships
Final
Champion	Pat O'Hara Wood
Runner-up	Ronald Thomas
Score	6–3, 4–6, 6–8, 6–1, 6–3
Details
Draw	26
Events
Singles Doubles
← 1919 · Australasian Championships · 1921 →

Pat O'Hara Wood defeated Ronald Thomas 6–3, 4–6, 6–8, 6–1, 6–3 in the final to win the men's singles tennis title at the 1920 Australasian Championships.

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• r = Retired

	Quarterfinals									Semifinals									Finals
	Pat O'Hara Wood		6	6	6
	H. Utz		1	1	2					Pat O'Hara Wood		6	6	7
	A. Roy Taylor		3	3	6	6	6			A. Roy Taylor		3	1	5
	A. Scott		6	6	2	2	3												Pat O'Hara Wood		6	4	6	6	6
	Ronald Thomas		6	6	6														Ronald Thomas		3	6	8	1	3
	G. O'Dea		0	2	4					Ronald Thomas		6	4	6	5	6
	Horace Rice		6	6	6					Horace Rice		4	6	1	7	2
	C. Gurner		2	2	2

	First round									Second round									Quarterfinals									Semifinals
											P. O'Hara Wood	6	6	6
		K. Roberts	9	6	2	0	6				K. Roberts	0	2	2
		R. Berriman	7	1	6	6	2													P O'Hara Wood	6	6	6
		H. Utz	6	6	5	3	11													H. Utz	1	1	2
		J. Penny	4	4	7	6	9				H. Utz	6	6	6
											R. Paxton	2	1	1
																													P O'Hara Wood	6	6	7
		A. R. Taylor	7	6	6	5	6																						A. R. Taylor	3	1	5
		E. Jordan	9	3	3	7	3				A. R. Taylor	6	6	9	6
		E. Rowe	6	8	6						E. Rowe	2	4	11	3
		G Hone	3	6	2															A. R. Taylor	6	6	2	2	6
		A. Scott	8	6	6															A. Scott	3	3	6	6	3
		E. Hicks	6	2	4						A. Scott	6	4	6	6
											R. Billing	4	6	3	4

	First round									Second round									Quarterfinals									Semifinals
		R. Thomas	w/o
		E. Richmond									R. Thomas	6	8	6
		S. Milligan	6	6	6						S. Milligan	2	6	0
		F. Bromley	2	2	1															R. Thomas	6	6	6
		G. O'Dea	6	6	6															G. O'Dea	0	2	4
		T. Linn	2	0	4						G. O'Dea	6	1	6	6
											F. Hone	1	6	2	3
																													R. Thomas	6	4	6	5	6
		H. Rice	6	6	6																								H. Rice	4	6	1	7	2
		C. Stuart	3	2	2						H. Rice	7	6	6
		J. O'Dea	6	6	9						J. O'Dea	5	1	1
		A. Pittman	0	2	7															H. Rice	6	6	6
																				C. Gurner	2	2	2
											C. Gurner	6	7	7
											F. Barritt	1	5	5

• [1] Grand Slam Tennis Archive – Australasian Open 1920
• [2] Source for the draw at ausopen.com