2011 AON Open Challenger – Singles

Fabio Fognini was the defending champion but decided not to participate.
Martin Kližan won the title after defeating Leonardo Mayer 6–3, 6–1 in the final.

Singles
2011 AON Open Challenger
Champion	Martin Kližan
Runner-up	Leonardo Mayer
Final score	6–3, 6–1

Main article: 2011 AON Open Challenger

Seeds

1. Pablo Andújar (First Round)
2. Carlos Berlocq (withdrew)
3. Rui Machado (Quarterfinals)
4. Filippo Volandri (Second Round, retired due to low back pain)
5. Andrey Golubev (First Round)
6. Martin Kližan (Champion)
7. Diego Junqueira (First Round)
8. Frederico Gil (Semifinals)
9. Horacio Zeballos (Semifinals)

Draw

Key

• Q = Qualifier
• WC = Wild Card
• LL = Lucky Loser
• Alt = Alternate
• SE = Special Exempt
• PR = Protected Ranking
• ITF = ITF entry
• JE = Junior Exempt
• w/o = Walkover
• r = Retired
• d = Defaulted

Finals

	Semifinals							Final
	8	Frederico Gil	7^7	4	3
	6	Martin Kližan	6^3	6	6
								6	Martin Kližan	6	6
									Leonardo Mayer	3	1
		Leonardo Mayer	7	5
	9	Horacio Zeballos	5	1

Top Half

	First Round							Second Round							Quarterfinals							Semifinals
	1/WC	P Andújar	5	6	6^2
		A di Mauro	7	3	7^7				A di Mauro	4	4
		A Giannessi	6	6					A Giannessi	6	6
	Q	B Balleret	1	2												A Giannessi	5	1
		K Mesaroš	6	6											8	F Gil	7	6
		S Galvani	1	4					K Mesaroš	1	4
	WC	Edoardo Eremin	4	3				8	F Gil	6	6
	8	F Gil	6	6																		8	F Gil	7^7	4	3
	4	F Volandri	1	6	6																	6	M Kližan	6^3	6	6
	WC	Andea Basso	6	3	1			4	F Volandri	0	1^r
		G Naso	0	6	6				G Naso	6	4
		W Trusendi	6	3	3											G Naso	6^1	3
		F Nielsen	6	6											6	M Kližan	7^7	6
		I Bozoljac	1	2					F Nielsen	2	4
	Q	Michael Linzer	1	2				6	M Kližan	6	6
	6	M Kližan	6	6

Bottom Half

	First Round							Second Round							Quarterfinals							Semifinals
	5	A Golubev	6	4	4
		M Zverev	4	6	6				M Zverev	4	0
		L Mayer	6	7^7					L Mayer	6	6
		D Brown	3	6^5												L Mayer	6	7^7
	WC	Francesco Picco	2	4											3	R Machado	3	6^1
	Alt	D Giorgini	6	6				Alt	D Giorgini	6	3	4
	LL	R Olivo	1	2				3	R Machado	3	6	6
	3	R Machado	6	6																			L Mayer	7	6
	7	D Junqueira	6	3	5																	9	H Zeballos	5	1
	Q	T Fabbiano	2	6	7			Q	T Fabbiano	5	6	6
		M Crugnola	6	6					M Crugnola	7	1	4
	Q	Guillermo Durán	2	3											Q	T Fabbiano	3	1
		T Nieminen	4	1											9	H Zeballos	6	6
	LL	Enrico Burzi	6	6				LL	E Burzi	4	2
	Alt	B Pašanski	3	7^7	6^6			9	H Zeballos	6	6
	9	H Zeballos	6	6^4	7^8

References

• Main Draw
• Qualifying Draw