Wheelchair quad singles
2011 US Open
Final
Champion	David Wagner
Runner-up	Peter Norfolk
Score	7–5, 3–1 retired
Events
Singles men women boys girls Doubles men women mixed boys girls WC Singles men women quad WC Doubles men women quad Legends men women mixed
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Defending champion David Wagner won the quad singles wheelchair tennis title at the 2011 US Open when Peter Norfolk retired from the final, with the score at 7–5, 3–1.

	Final
	1	David Wagner	7	3
	2	Peter Norfolk	5	1	r

		Wagner	Gershony	Taylor	Norfolk	RR W–L	Set W–L	Game W–L	Standings
1	David Wagner		3–6, 1–6	6–0, 6–2	6–4, 6–2	2–1	4–2	28–20	1
	Noam Gershony	6–3, 6–1		7–5, 4–6, 6–7(3–7)	5–7, 2–6	1–2	3–4	36–35	3
	Nick Taylor	0–6, 2–6	5–7, 6–4, 7–6(7–3)		2–6, 5–7	1–2	2–5	27–42	4
2	Peter Norfolk	4–6, 2–6	7–5, 6–2	6–2, 7–5		2–1	4–2	32–26	2

Standings are determined by: 1. number of wins; 2. number of matches; 3. in two-players-ties, head-to-head records; 4. in three-players-ties, percentage of sets won, or of games won; 5. steering-committee decision.

• Singles Draw