Men's singles
1931 U.S. National Championships
Final
Champion	Ellsworth Vines[1]
Runner-up	George Lott[1]
Score	7–9, 6–3, 9–7, 7–5
Events
Singles men women Doubles men women
← 1930 · U.S. National Championships · 1932 →

First-seededEllsworth Vines defeated fourth-seededGeorge Lott 7–9, 6–3, 9–7, 7–5 in the final to win the men's singles tennis title at the1931 U.S. National Championships.^[2]

The tournament used two lists of eight players for seeding the men's singles event; one for U.S. players and one for foreign players.Fred Perry is the champion; others show the round in which they were eliminated.

	Quarterfinals									Semifinals									Final
	1	Ellsworth Vines	6	6	8
		Berkeley Bell	1	4	6
										1	Ellsworth Vines	4	3	6	6	6
										(1)	Fred Perry	6	6	4	4	3
		Frank Bowden	2	3	4
	(1)	Fred Perry	6	6	6
																			1	Ellsworth Vines	7	6	9	7
																			4	George Lott	9	3	7	5
	2	Frank Shields	2	9	6	6
	5	John Doeg	6	11	4	8
										5	John Doeg	5	3	0
										4	George Lott	7	6	6
	4	George Lott	5	1	6	7	6
	7	John Van Ryn	7	6	0	5	1

	First round									Second round									Third round									Fourth round
										1	Vines	6	6	6
											Fischer	4	0	3
																			1	Vines	6	6	6	6
																				Wright	3	3	8	2
										Jenkins		6	2	5	6
										Wright		3	6	7	8
																												1	Vines	6	6	7
																													Hall	2	3	5
										Tidball		4	6	10	2
										Gilpin		6	1	12	6
																			Gilpin		0	6	3	1
																			Hall		6	0	6	6
											Hall	4	6	5	6	8
										(7)	Bernard	6	2	7	3	6

	First round									Second round									Third round									Fourth round
										8	Allison	7	4	2	4
											Bell	5	6	6	6
																			Bell		6	6	6
																			Blauer		2	4	2
										Blauer		6	6	7
										Downing		2	1	5
																												Bell		9	7	4	7
																												Bryan		7	5	6	5
										Boehmer		w/	o
										Bryan
																				Bryan	2	6	6	8
																			(3)	Hughes	6	0	3	6
											Palmer	1	4	0
										(3)	Hughes	6	6	6

	First round									Second round									Third round									Fourth round
										3	Wood	6	6	7
											Davenport	2	4	5
																			3	Wood	6	0	8	3	3
																				Bowden	2	6	6	6	6
										Bowden		2	9	6	2	7
										Burns		6	7	1	6	5
																												Bowden		7	4	6	6
																												Burwell		5	6	1	3
										DeMott		9	6	6
										Sheridan		7	4	3
																			DeMott		3	0	3
	Donovan		6	11	3	4													Burwell		6	6	6
	Burwell		8	9	6	6				Burwell		6	6	7
		Buxby	6	6	3					Buxby		1	1	5
	(6)	Rainville	0	1	0	rtd.

	First round									Second round									Third round									Fourth round
	6	Sutter	6	6	6
		Stoefen	3	4	4					6	Sutter	6	6	4	6
	Coen		6	7	6						Coen	4	4	6	3
	Feibleman		3	5	4														6	Sutter	6	6	6
	Onda																			Frame	1	4	4
	Eggmann		w/	o						Onda		4	1	6
	Fischer		2	6	7	3	5			Frame		6	6	8
	Frame		6	2	5	6	7																					6	Sutter	6	4	3	3
	Bowman		6	7	6																							(1)	Perry	4	6	6	6
	Verstraten		3	5	1					Bowman		6	6	6
	Van Alen		6	3	6	6				Van Alen		2	0	2
	Crum Thompson		2	6	2	2														Bowman	3	5	2
	Tarangioli		6	5	6	6													(1)	Perry	6	7	6
	Smith		2	7	4	0					Tarangioli	3	2	8
		Seligson	4	5	6	0				(1)	Perry	6	6	10
	(1)	Perry	6	7	4	6

	First round									Second round									Third round									Fourth round
	2	Shields	6	6	6
		Sendel	1	0	1					2	Shields	6	6	6
	Roll		6	4	3						Partridge	3	4	1
	Partridge		8	6	6														2	Shields	6	6	6
	Jones		2	2	5															Barnes	0	3	1
	Barnes		6	6	7					Barnes		6	4	8	4	6
	Kamrath		6	6	6					Kamrath		2	6	6	6	2
	Gonzales		0	0	0																							2	Shields	3	6	6	2	6
	Jones		6	6	6																								Gledhill	6	2	4	6	4
	Kunkel		3	4	4					Jones		6	4	6	4	6
	Jennings		11	6	5	6				Jennings		4	6	1	6	4
	Fischer		9	3	7	2													Jones		4	9	5
	Gledhill		5	6	6	6	6												Gledhill		6	11	7
	Yeomans		7	4	4	8	4			Gledhill		6	6	7
		Williams	3	6	6	7	8			Williams		1	2	5
	(5)	Wright	6	2	3	9	6

	First round									Second round									Third round									Fourth round
	5	Doeg	6	6	6
		Werner	3	2	4					5	Doeg	6	1	2	6	6
	R. M. Watt		4	7	5						Jacobs	4	6	6	0	3
	Jacobs		6	9	7														5	Doeg	10	6	10	6
																				Herndon	8	3	12	3
										Herndon		3	2	3
										Griffin		6	6	5	rtd.
																												5	Doeg	6	4	6	6
																													Grant	0	6	2	1
										Green		2	3	5
										Griffin		6	6	7
																			Griffin		4	5	6	3
																			Grant		6	7	4	6
											Grant	3	7	6	6
										(4)	Brugnon	6	5	3	4

	First round									Second round									Third round									Fourth round
										4	Lott	6	6	6
											Murphy	3	3	3
																			4	Lott	6	6	6
																				Martin	0	3	1
										Moore		0	3	2
										Martin		6	6	6
																												4	Lott	6	6	6
																													Mangin	1	3	2
										Mangin		6	8	8
										McCauliff		3	6	6
																				Mangin	6	6	6
																			(8)	Merlin	3	2	1
											MacPherson	1	6	6	6	5
										(8)	Merlin	6	1	0	8	7

	First round									Second round									Third round									Fourth round
										7	Van Ryn	6	6	6
											Loughlin	1	1	1
																			7	Van Ryn	6	6	6
																				Lavine	3	0	3
										Law		8	4	6	3	1
										Lavine		6	6	3	6	6
																												7	Van Ryn	7	6	6
																												(2)	Boussus	5	0	4
										Lang		7	6	10
										Kynaston		5	1	8
																				Lang	3	6	2	1
																			(2)	Boussus	6	3	6	6
											Kurzrok	6	3	10	1
										(2)	Boussus	2	6	12	6

• 1931 U.S. National Championships (tennis)
• U.S. National Championships (tennis) by year – Men's singles
• 1931 in men's tennis

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