2019 AON Open Challenger – Singles

Lorenzo Sonego was the defending champion^[1] and successfully defended his title, defeating Alejandro Davidovich Fokina 6–2, 4–6, 7–6^(8–6) in the final.

Singles
2019 AON Open Challenger
Champion	Lorenzo Sonego
Runner-up	Alejandro Davidovich Fokina
Score	6–2, 4–6, 7–6(8–6)

Main article: 2019 AON Open Challenger

Seeds

All seeds receive a bye into the second round.

1. Lorenzo Sonego (champion)
2. Albert Ramos Viñolas (semifinals)
3. Marco Cecchinato (second round)
4. Philipp Kohlschreiber (quarterfinals)
5. Roberto Carballés Baena (second round)
6. Stefano Travaglia (quarterfinals)
7. Jaume Munar (third round)
8. Thiago Monteiro (quarterfinals)
9. Salvatore Caruso (second round)
10. Guido Andreozzi (semifinals)
11. Alejandro Davidovich Fokina (final)
12. Lorenzo Giustino (second round)
13. Attila Balázs (third round)
14. Taro Daniel (quarterfinals)
15. Kimmer Coppejans (second round)
16. Jiří Veselý (third round)

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• ITF = ITF entry
• PR = Protected ranking
• SR = Special ranking
• SE = Special exempt
• JE = Junior exempt
• JR = Junior Accelerator Programme entrant
• CO = College Accelerator Programme entrant
• NG = Next Gen Accelerator Program entrant
• w/o = Walkover
• r = Retired
• d = Defaulted

Finals

	Quarterfinals							Semifinals							Final
	1/WC	Lorenzo Sonego	6	6
	6	Stefano Travaglia	2	4
								1/WC	Lorenzo Sonego	6	5	6
								10	Guido Andreozzi	2	7	4
	4/WC	Philipp Kohlschreiber	66	3
	10	Guido Andreozzi	78	6
															1/WC	Lorenzo Sonego	6	4	78
															11	Alejandro Davidovich Fokina	2	6	66
	11	Alejandro Davidovich Fokina	6	6
	14	Taro Daniel	4	4
								11	Alejandro Davidovich Fokina	3	6	6
								2	Albert Ramos Viñolas	6	2	3
	8	Thiago Monteiro	2	4
	2	Albert Ramos Viñolas	6	6

Top half

Section 1

	First round							Second round							Third round							Quarterfinals
								1/WC	L Sonego	6	6
	Q	A Vavassori	6	5	1				Y Hanfmann	1	3
		Y Hanfmann	4	7	6										1/WC	L Sonego	66	77	7
		A Tabilo	6	6											16	J Veselý	78	60	5
		J Choinski	0	2					A Tabilo	5	1
								16	J Veselý	7	6
																						1/WC	L Sonego	6	6
																						6	S Travaglia	2	4
								12	L Giustino	3	2
		S Nagal	1	5				WC	G Zeppieri	6	6
	WC	G Zeppieri	6	7											WC	G Zeppieri	2	2
		T Robredo	2	64											6	S Travaglia	6	6
		F Bagnis	6	77					F Bagnis	6	3	3
								6	S Travaglia	3	6	6

Section 2

	First round							Second round							Third round							Quarterfinals
								4/WC	P Kohlschreiber	6	6
		F Horanský	3	4				WC	L Musetti	4	4
	WC	L Musetti	6	6											4/WC	P Kohlschreiber	7	7
		J Menezes	0	4												B Zapata Miralles	5	5
		B Zapata Miralles	6	6					B Zapata Miralles	6	6
								15	K Coppejans	2	4
																						4/WC	P Kohlschreiber	66	3
																						10	G Andreozzi	78	6
								10	G Andreozzi	4	6	6
		S Ofner	6	6					S Ofner	6	3	0
		G García López	2	2											10	G Andreozzi	6	7
		R Molleker	7	2	1											F Baldi	3	5
		F Baldi	5	6	6				F Baldi	77	1	6
								5	R Carballés Baena	64	6	1

Bottom half

Section 3

	First round							Second round							Third round							Quarterfinals
								7	J Munar	3	77	6
		J Domingues	6	1	2				C Berlocq	6	61	4
		C Berlocq	4	6	6										7	J Munar	6	4	3
		A Giannessi	0	0r											11	A Davidovich Fokina	4	6	6
		V Galović	6	2					V Galović	0	4
								11	A Davidovich Fokina	6	6
																						11	A Davidovich Fokina	6	6
																						14	T Daniel	4	4
								14	T Daniel	6	5	6
		M Safwat	4	6	6				M Safwat	3	7	4
		F Argüello	6	2	0										14	T Daniel	77	6
		F Coria	6	7												F Coria	65	4
		E Benchetrit	1	5					F Coria	77	3	6
								3	M Cecchinato	64	6	4

Section 4

	First round							Second round							Third round							Quarterfinals
								8	T Monteiro	6	6
		R Dutra Silva	2	3r				WC	A Pellegrino	3	4
	WC	A Pellegrino	6	4											8	T Monteiro	4	6	6
	Alt	J Lenz	5	4												G Mager	6	4	4
		G Mager	7	6					G Mager	77	6
								9	S Caruso	64	2
																						8	T Monteiro	2	4
																						2	A Ramos Viñolas	6	6
								13	A Balázs	3	6	6
	Q	A Molčan	6	7				Q	A Molčan	6	3	3
	Alt	T Bellucci	4	5											13	A Balázs	1	3
		F Gaio	7	77											2	A Ramos Viñolas	6	6
		P Cachin	5	64					F Gaio	4	6	2
								2	A Ramos Viñolas	6	4	6