Singles
1921 Australasian Championships
Final
Champion	Rice Gemmell
Runner-up	Alfred Hedeman
Score	7–5, 6–1, 6–4
Details
Draw	22
Events
Singles Doubles
← 1920 · Australasian Championships · 1922 →

Rice Gemmell defeated Alfred Hedeman 7–5, 6–1, 6–4 in the final to win the men's singles tennis title at the 1921 Australasian Championships.

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

	Quarterfinals									Semifinals									Finals
	Rice Gemmell		6	6	6
	E. M. Barker		0	3	0					Rice Gemmell		6	6	6
	Clarence Treloar		6	6	6					Clarence Treloar		2	1	3
	W. Henville		3	2	2														Rice Gemmell		7	6	6
	Alfred Hedeman		6	6	6														Alfred Hedeman		5	1	4
	Norman Kenneth Brearley		2	1	3					Alfred Hedeman		6	3	6	6
	Keith McDougall		2	12	6	6				Keith A. McDougall		4	6	1	2
	W. Hayman		6	10	2	0

	First round									Second round									Quarterfinals									Semifinals
											R. T. H. Gemmell	6	6	4	6
											D. Cameron	3	1	6	0
																				R. T. H. Gemmell	6	6	6
																				E. M. Barker	0	3	0
											E. M. Barker	4	6	6	6
											Holliday	6	2	4	2
																													R. T. H. Gemmell	6	6	6
		C. L. Treloar	6	3	6	6																							C. L. Treloar	2	1	3
		William McLeod Cleland	4	6	1	4					C. L. Treloar	7	6	6
		Leonard McDaniell	6	6	6						Leonard McDaniell	5	2	4
		Malcolm Plaistowe	2	4	0															C. L. Treloar	6	6	6
		W. Henville	3	2	8	rtd.														W. Henville	3	2	2
		P. Mills	6	6	6						W. Henville	6	6	7
		S. Davis	w/o								S.Davis	1	3	5
		Edward W. Stokes

	First round									Second round									Quarterfinals									Semifinals
											A. H. Hedeman	6	4	6	6
											Forsaith	4	6	1	3
																				A. H. Hedeman	6	6	6
		N. Brearley	6	6	6															Norman Kenneth Brearley	2	1	3
		Sturm	4	3	1						N. Brearley	3	3	11	6	6
		Linwood	6	6	6						Linwood	6	6	9	2	4
		Fairbridge	2	0	0																								A. H. Hedeman	6	3	6	6
																													K. A. McDougall	4	6	1	2
											W. Hayman	2	6	7	5	6
											McGibbon	6	2	5	7	2
																				K. A. McDougall	2	12	6	6
																				W. Hayman	6	10	2	0
											K. A. McDougall	4	3	6	6	6
											Robert Whitelock Phillips	6	6	2	3	4

• [1] Grand Slam Tennis Archive – Australasian Open 1921
• [2] Source for the draw at ausopen.com