2019 Monterrey Challenger – Singles

David Ferrer was the defending champion but chose not to defend his title.^[1]

Singles
2019 Monterrey Challenger
Champion	Alexander Bublik
Runner-up	Emilio Gómez
Score	6–3, 6–2

Main article: 2019 Monterrey Challenger

Alexander Bublik won the title after defeating Emilio Gómez 6–3, 6–2 in the final.

Seeds

All seeds receive a bye into the second round.

1. Tennys Sandgren (semifinals)
2. Bradley Klahn (quarterfinals)
3. Feliciano López (quarterfinals)
4. Casper Ruud (second round)
5. Paolo Lorenzi (second round)
6. Marcel Granollers (third round)
7. Alexander Bublik (champion)
8. Peter Polansky (quarterfinals)
9. Christopher Eubanks (third round)
10. Mitchell Krueger (third round)
11. Roberto Quiroz (second round)
12. Marcos Giron (quarterfinals)
13. James Ward (second round)
14. Dominik Köpfer (third round)
15. Sebastian Ofner (third round)
16. Darian King (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	Tennys Sandgren	6	64	6
	12	Marcos Giron	1	77	0
								1	Tennys Sandgren	6	2	65
								7	Alexander Bublik	2	6	77
	3	Feliciano López	65	3
	7	Alexander Bublik	77	6
															7	Alexander Bublik	6	6
																Emilio Gómez	3	2
	8	Peter Polansky	3	65
		Emilio Gómez	6	77
									Emilio Gómez	2	6	6
									Donald Young	6	3	4
		Donald Young	7	6
	2	Bradley Klahn	5	4

Top half

Section 1

	First round							Second round							Third round							Quarterfinals
								1	T Sandgren	4	79	6
		R Olivo	6	7					R Olivo	6	67	2
		K Uchida	4	5											1	T Sandgren	77	4	6
	WC	N Mejía	4	6	3										16	D King	65	6	2
		E King	6	3	6				E King	6	63	1
								16	D King	4	77	6
																						1	T Sandgren	6	64	6
																						12	M Giron	1	77	0
								12	M Giron	6	6
	WC	E Nava	6	3	6			WC	E Nava	4	2
		B Gojo	4	6	4										12	M Giron	4	6	6
	PR	M Przysiężny	4	4											6	M Granollers	6	3	4
		DE Galán	6	6					DE Galán	3	4
								6	M Granollers	6	6

Section 2

	First round							Second round							Third round							Quarterfinals
								3	F López	77	6
		C Gómez-Herrera	6	6					C Gómez-Herrera	63	4
		C Altamirano	1	4											3	F López	77	6
		JC Aragone	6	3	4										14	D Köpfer	64	2
		MT Barrios Vera	3	6	6				MT Barrios Vera	62	64
								14	D Köpfer	77	77
																						3	F López	65	3
																						7	A Bublik	77	6
								10	M Krueger	78	6
		E Escobedo	65	4				Q	K King	66	3
	Q	K King	77	6											10	M Krueger	62	3
		P Krstin	6	6											7	A Bublik	77	6
	WC	L Gómez	0	3					P Krstin	6	3	4
								7	A Bublik	1	6	6

Bottom half

Section 3

	First round							Second round							Third round							Quarterfinals
								8	P Polansky	6	6
		Roy Smith	63	4				WC	J Tipsarević	3	2
	WC	J Tipsarević	77	6											8	P Polansky	77	77
		J-P Smith	6	6											9	C Eubanks	63	64
	WC	M Sánchez	4	2					J-P Smith	3	77	5
								9	C Eubanks	6	63	7
																						8	P Polansky	3	65
																							E Gómez	6	77
								13	J Ward	5	63
		G Escobar	2	6	5				A Pavić	7	77
		A Pavić	6	2	7											A Pavić	1	0
		A Collarini	5	2												E Gómez	6	6
		E Gómez	7	6					E Gómez	6	6
								4	C Ruud	2	4

Section 4

	First round							Second round							Third round							Quarterfinals
								5	P Lorenzi	4	3
		D Young	6	6					D Young	6	6
		R Ortega Olmedo	4	4												D Young	6	6
		R Cid Subervi	64	3												S Giraldo	3	4
		S Giraldo	77	6					S Giraldo	3	7	77
								11	R Quiroz	6	5	61
																							D Young	7	6
																						2	B Klahn	5	4
								15	S Ofner	77	1	6
	LL	L Patiño	1	6	1				V Estrella Burgos	63	6	4
		V Estrella Burgos	6	3	6										15	S Ofner	3	3
		Evan Song	2	6	6										2	B Klahn	6	6
	Q	MF Descotte	6	3	0				E Song	4	3
								2	B Klahn	6	6