1909 U.S. National Championships – Women's singles

Hazel Hotchkiss won the singles tennis title of the 1909 U.S. Women's National Singles Championship by defeating reigning champion Maud Barger-Wallach 6–0, 6–1 in the challenge round. Hotchkiss had won the right to challenge Barger-Wallach by defeating Louise Hammond 6–8, 6–1, 6–4 in the final of the All Comers' competition. The event was played on outdoor grass courts and held at the Philadelphia Cricket Club in Wissahickon Heights, Chestnut Hill, Philadelphia from June 21 through June 27, 1909.^[1]

Women's singles
1909 U.S. National Championships
Champion	Hazel Hotchkiss[1]
Runner-up	Maud Barger-Wallach[1]
Score	6–0, 6–1
Draw	32
Seeds	–

Draw

Challenge round

	Challenge Round
	Maud Barger-Wallach		0	1
	Hazel Hotchkiss		6	6

All Comers' finals

	Quarterfinals							Semifinals							Finals
	Emily Scott		3	0
	Hazel Hotchkiss		6	6
								Hazel Hotchkiss		6	7
								Edith Rotch		2	5
	Edith Rotch		6	6
	Alice Day		1	0
															Hazel Hotchkiss		6	6	6
															Louise Hammond		8	1	4
	Lois Moyes		6	8
	Margaret Roberts		1	6
								Lois Moyes		0	2
								Louise Hammond		6	6
	Gwendolyn Rees		4	1
	Louise Hammond		6	6