Singles
1970 U.S. Pro Tennis Championships
Final
Champion	Tony Roche[1]
Runner-up	Rod Laver
Score	3–6, 6–4, 1–6, 6–2, 6–2
Details
Draw	32
Seeds	8
Events
Singles Doubles
← 1969 · U.S. Pro Tennis Championships · 1971 →

The 1970 U.S. Pro Tennis Championships was a men's tennis tournament played on outdoor hard courts at the Longwood Cricket Club in Boston, USA. It was classified as a Glass 1 category tournament and was part of the 1970 Grand Prix circuit. It was the 43rd edition of the tournament and was held from August 3 through August 9, 1970. Fourth-seeded Tony Roche won the singles title and the accompanying $12,000 first prize money.^[2]

Champion seeds are indicated in bold text while text in italics indicates the round in which those seeds were eliminated.

	Semifinals									Final[1]
	2	Tony Roche	2	6	6	6
	6	Roy Emerson	6	1	4	3
										2	Tony Roche	3	6	6	6
										1	Rod Laver	6	4	2	2
		Cliff Drysdale	3	0	0
	1	Rod Laver	6	6	6

	First round							Second round							Quarterfinals							Semifinals
	2	T Roche	6	6
		D Ralston	4	1				2	T Roche	7	6	6
		F Stolle	6	7					F Stolle	6	7	1
		P Cornejo	2	6											2	T Roche	6	6
	7	A Ashe	6	6											7	A Ashe	1	4
		P Barthès	4	2				7	A Ashe	6	6
		I El Shafei	1	6	7				I El Shafei	3	4
		T Okker	6	4	5																	2	T Roche	2	6	6	6
		C Graebner	6	6																		6	R Emerson	6	1	4	3
	3	J Newcombe	2	4					C Graebner	6	5	3
		J Fillol	7	3	7				Jaime Fillol	4	7	6
		T Gorman	6	6	6											Jaime Fillol	3	2
	6	R Emerson	6	6											6	R Emerson	6	6
		B Bowrey	3	2				6	R Emerson	6	6
		M Cox	6	6	6				M Cox	1	2
		B Lutz	3	7	4

	First round							Second round							Quarterfinals							Semifinals
		J Kodeš	6	6
		G Stilwell	4	1					J Kodeš	7	6
		M Riessen	2	6	6				M Riessen	5	4
	5	C Richey	6	4	3											J Kodeš	7	3	4
		C Drysdale	6	5	7											C Drysdale	6	6	6
		Ž Franulović	2	7	6				C Drysdale	6	7
	4	K Rosewall	6	6				4	K Rosewall	4	6
		R Taylor	2	4																			C Drysdale	3	0	0
		R Ruffels	7	6																		1	R Laver	6	6	6
		A Stone	6	4					R Ruffels	6	4	6
	8	A Gimeno	6	6	6			8	Andrés Gimeno	1	6	2
		C Pasarell	7	2	0											R Ruffels	1	2
		R Moore	6	6											1	R Laver	6	6
		R Holmberg	2	3					R Moore	3	5
	1	R Laver	6	6				1	R Laver	6	7
		T Ulrich	3	2