2017 AON Open Challenger – Singles

Jerzy Janowicz was the defending champion but chose not to defend his title.

Singles
2017 AON Open Challenger
Champion	Stefanos Tsitsipas
Runner-up	Guillermo García López
Final score	7–5, 7–6^(7–2)

Main article: 2017 AON Open Challenger

Stefanos Tsitsipas won the title after defeating Guillermo García López 7–5, 7–6^(7–2) in the final.

Seeds

1. Jan-Lennard Struff (Quarterfinals)
2. Andreas Seppi (First round)
3. Alessandro Giannessi (Second round)
4. Laslo Đere (Second round)
5. Marco Cecchinato (First round)
6. Renzo Olivo (First round)
7. Dustin Brown (Second round)
8. Márton Fucsovics (Semifinals, retired)

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
	WC	Stefanos Tsitsipas	6	1
	8	Márton Fucsovics	0	0^r
								WC	Stefanos Tsitsipas	7	7^7
									Guillermo García López	5	6^2
		Guillermo García López	6	6^5	6
		Stefano Napolitano	2	7^7	3

Top half

	First Round							Second Round							Quarterfinals							Semifinals
	1	J-L Struff	6	7^7
		M Zekić	4	6^2				1	J-L Struff	7^8	7^7
	Alt	H Hurkacz	6	2	5				U Ignatik	6^6	6^4
		U Ignatik	3	6	7										1	J-L Struff	2	3
		G Andreozzi	3	4											WC	S Tsitsipas	6	6
	WC	S Tsitsipas	6	6				WC	S Tsitsipas	6	6
		A Šetkić	1	7^7	6				A Šetkić	2	4
	5	M Cecchinato	6	6^5	3																	WC	S Tsitsipas	6	1
	4	L Đere	6	5	6																	8	M Fucsovics	0	0^r
	Q	Gianluca Di Nicola	1	7	4			4	L Đere	3	3
		E Ymer	3	6^4					A Balázs	6	6
		A Balázs	6	7^7												A Balázs	7^7	2	5
	Q	T Pütz	7^7	6											8	M Fucsovics	6^4	6	7
	Alt	F Gaio	6^0	1				Q	T Pütz	1	2
		S Caruso	1	1				8	M Fucsovics	6	6
	8	M Fucsovics	6	6

Bottom half

	First Round							Second Round							Quarterfinals							Semifinals
	6	R Olivo	5	2
		A Vatutin	7	6					A Vatutin	6	4	1
	Q	A Pellegrino	3	4				WC	M Donati	2	6	6
	WC	M Donati	6	6											WC	M Donati	4	2
		J Eysseric	4	1												G García López	6	6
		G García López	6	6					G García López	6	7
	WC	J Ocleppo	5	1				3	A Giannessi	4	5
	3	A Giannessi	7	6																			G García López	6	6^5	6
	7	D Brown	7	6																			S Napolitano	2	7^7	3
	Alt	Riccardo Bonadio	5	2				7	D Brown	4	2
		M Berrettini	4	6	2				S Napolitano	6	6
		S Napolitano	6	3	6											S Napolitano	7^7	6
		K de Schepper	2	2											Q	A Basso	6^2	4
		J Kovalík	6	6					J Kovalík	6	3	4
	Q	A Basso	6^1	6	7^7			Q	A Basso	3	6	6
	2/WC	A Seppi	7^7	3	6^4

References

• Main Draw
• Qualifying Draw