2021 Challenger Ciudad de Guayaquil – Singles

Singles
2021 Challenger Ciudad de Guayaquil
Final
Champion	Alejandro Tabilo
Runner-up	Jesper de Jong
Score	6–1, 7–5
Events
Singles Doubles
← 2020 · Challenger Ciudad de Guayaquil · 2022 →

Francisco Cerúndolo was the defending champion^[1] but lost in the second round to Gonçalo Oliveira.

Alejandro Tabilo won the title after defeating Jesper de Jong 6–1, 7–5 in the final.

	Semifinals							Final
		Alejandro Tabilo	6	77
	6	Thiago Seyboth Wild	2	62
									Alejandro Tabilo	6	7
									Jesper de Jong	1	5
		Jesper de Jong	7	6
	8	Tomás Martín Etcheverry	5	3

	First round							Second round							Quarterfinals							Semifinals
	1	J Munar	4	2
		A Tabilo	6	6					A Tabilo	6	6
	WC	Á Guillén Meza	6	3	4				D King	3	1
		D King	0	6	6											A Tabilo	6	6
		G Oliveira	6	77												G Oliveira	4	3
		R Cid Subervi	3	61					G Oliveira	6	6
		V Kopřiva	7	2	3			5	F Cerúndolo	4	3
	5	F Cerúndolo	5	6	6																		A Tabilo	6	77
	4	S Báez	63	6	5																	6	T Seyboth Wild	2	62
		N Kicker	77	4	7				N Kicker	77	6
	Q	D Dutra da Silva	2	77	6			Q	D Dutra da Silva	65	3
		N Hardt	6	65	0											N Kicker	4	68
	Q	A González	6	6											6	T Seyboth Wild	6	710
	Alt	A Galarneau	2	4				Q	A González	62	0
		A Collarini	3	77	2			6	T Seyboth Wild	77	6
	6	T Seyboth Wild	6	63	6

	First round							Second round							Quarterfinals							Semifinals
	7	H Dellien	6	6
		P Krstin	4	2				7	H Dellien	1	0
		J de Jong	3	77	0				J de Jong	6	6
		G Andreozzi	6	64	0r											J de Jong	6	65	6
	Q	Facundo Juárez	3	6	6										3	DE Galán	2	77	3
	Alt	F Díaz Acosta	6	4	4			Q	F Juárez	4	3
		N Mejía	2	5				3	DE Galán	6	6
	3	DE Galán	6	7																			J de Jong	7	6
	8	TM Etcheverry	6	3	7																	8	TM Etcheverry	5	3
		R Quiroz	1	6	5			8	TM Etcheverry	6	3	77
	LL	N Álvarez Varona	2	6	6			LL	N Álvarez Varona	4	6	64
	WC	D Hidalgo	6	4	3										8	TM Etcheverry	6	6
	Q	N Álvarez	4	7	6										2/WC	F Bagnis	4	0
		TA Tirante	6	5	3			Q	N Álvarez	2	6	1
		H Casanova	2	2				2/WC	F Bagnis	6	4	6
	2/WC	F Bagnis	6	6

• Main draw
• Qualifying draw