Singles
2012 Challenger Ciudad de Guayaquil
Champion	Leonardo Mayer
Runner-up	Paolo Lorenzi
Score	6–2, 6–4

Matteo Viola was the defending champion but decided not to participate.
Leonardo Mayer won the title after defeating Paolo Lorenzi 6–2, 6–4 in the final.

Seeds

Draw

Finals

	Semifinals							Final
	1	Leonardo Mayer	6	7
	5	Martín Alund	2	5
								1	Leonardo Mayer	6	6
								2	Paolo Lorenzi	2	4
	3	Rubén Ramírez Hidalgo	64	711	62
	2	Paolo Lorenzi	77	69	77

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	L Mayer	6	6
		C Saavedra-Corvalán	4	2				1	L Mayer	6	6
	WC	E Gómez	6	6				WC	E Gómez	3	3
		R Olivo	3	4											1	L Mayer	3	6	6
	Q	Franco Scaravilli	2	3												P Sousa	6	3	3
		P Sousa	6	6					P Sousa	6	6
	WC	Alejandro Jose Gomez Estrada	1	0				7	F Gil	1	1
	7	F Gil	6	6																		1	L Mayer	6	7
	4	G Pella	4	6	6																	5	M Alund	2	5
	Q	S Galdós	6	3	1			4	G Pella	6	64	6
		N Barrientos	66	77	7				N Barrientos	3	77	3
		A El Mihdawy	78	62	5										4	G Pella	5	3
		J Aguilar	6	3	65										5	M Alund	7	6
	WC	D Beretta	4	6	77			WC	D Beretta	0	3
		C Salamanca	3	4				5	M Alund	6	6
	5	M Alund	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	6	W Odesnik	6	6
		R Borvanov	1	4				6	W Odesnik	4	3
	WC	J-S Vivanco	2	3				SE	JS Cabal	6	6
	SE	JS Cabal	6	6											SE	JS Cabal	6	4	3
		Alexander Lobkov	64	77	6										3	R Ramírez Hidalgo	3	6	6
		Maximiliano Estévez	77	64	3				A Lobkov	3	4
		D Zivkovic	6	3	3			3	R Ramírez Hidalgo	6	6
	3	R Ramírez Hidalgo	3	6	6																	3	R Ramírez Hidalgo	64	711	62
	8	T Gabashvili	66	67																		2	P Lorenzi	77	69	77
		A González	78	79					A González	6	6
	Q	Mateo Nicolás Martínez	65	5				Q	D Garza	3	2
	Q	D Garza	77	7												A González	63	62
		F Bagnis	64	78	610										2	P Lorenzi	77	77
		M Trungelliti	77	66	712				M Trungelliti	2	2
		JC Campozano	2	65				2	P Lorenzi	6	6
	2	P Lorenzi	6	77

References

• Main Draw
• Qualifying Draw