10‑Oct‑2011 | Bolivia F4 | Clay | R32 | 1012 | 1339 | (WC)Alejandro Mendoza [BOL] d. Mantilla | 7-5 6-4 | | | | | | | | | |
3‑Oct‑2011 | Bolivia F3 | Clay | R16 | 1077 | 619 | (8)Gabriel Alejandro Hidalgo [ARG] d. Mantilla | 7-5 2-6 6-3 | | | | | | | | | |
3‑Oct‑2011 | Bolivia F3 | Clay | R32 | 1077 | 680 | Mantilla d. Facundo Mena [ARG] | 6-3 6-1 | | | | | | | | | |
26‑Sep‑2011 | Bolivia F2 | Clay | R16 | 1069 | 651 | (5)Guillermo Carry [ARG] d. Mantilla | 7-5 6-2 | | | | | | | | | |
26‑Sep‑2011 | Bolivia F2 | Clay | R32 | 1069 | | Mantilla d. (WC)Diego Prudencio [BOL] | 6-2 6-2 | | | | | | | | | |
29‑Aug‑2011 | Colombia F5 | Clay | R32 | 1141 | 581 | Maciek Sykut [USA] d. (WC)Mantilla | 7-6(3) 6-4 | | | | | | | | | |
22‑Aug‑2011 | Colombia F4 | Clay | R16 | 1135 | 299 | (2)Christian Lindell [SWE] d. (Q)Mantilla | 6-1 6-1 | | | | | | | | | |
22‑Aug‑2011 | Colombia F4 | Clay | R32 | 1135 | 1213 | (Q)Mantilla d. (Q)Charles Costa [BRA] | 4-6 6-2 6-2 | | | | | | | | | |
15‑Aug‑2011 | Colombia F3 | Clay | R32 | 1123 | 607 | Ryusei Makiguchi [BOL] d. (WC)Mantilla | 6-2 7-5 | | | | | | | | | |
8‑Aug‑2011 | Ecuador F5 | Hard | R32 | 1195 | 321 | (1)Alejandro Gonzalez [COL] d. (Q)Mantilla | 6-3 6-3 | | | | | | | | | |
1‑Aug‑2011 | Ecuador F4 | Hard | R16 | 1193 | 500 | (7)Miguel Gallardo Valles [MEX] d. (Q)Mantilla | 7-6(1) 7-6(3) | | | | | | | | | |
1‑Aug‑2011 | Ecuador F4 | Hard | R32 | 1193 | | (Q)Mantilla d. (Q)Alejo Apud [ARG] | 6-3 6-1 | | | | | | | | | |
11‑Jul‑2011 | Bogota2 CH | Clay | R32 | 1183 | 116 | (4)Horacio Zeballos [ARG] d. Mantilla | 6-2 6-4 | | 0.62 | 3.8% | 3.8% | 54.7% | 72.4% | 37.5% | 1/4 | 1:01 |
27‑Jun‑2011 | Venezuela F6 | Hard | R16 | 1853 | 404 | (3)Eduardo Struvay [COL] d. (Q)Mantilla | 6-7(1) 6-3 6-4 | | | | | | | | | |
27‑Jun‑2011 | Venezuela F6 | Hard | R32 | 1853 | 1074 | (Q)Mantilla d. Peter Aarts [USA] | 7-5 7-5 | | | | | | | | | |
13‑Jun‑2011 | Venezuela F4 | Hard | QF | 1848 | 553 | (2)Guido Andreozzi [ARG] d. (Q)Mantilla | 7-6(3) 6-3 | | | | | | | | | |
13‑Jun‑2011 | Venezuela F4 | Hard | R16 | 1848 | 989 | (Q)Mantilla d. Marlon Oliveira [BRA] | 6-4 6-2 | | | | | | | | | |
13‑Jun‑2011 | Venezuela F4 | Hard | R32 | 1848 | 1064 | (Q)Mantilla d. Caio Silva [BRA] | 7-6(4) 6-2 | | | | | | | | | |
9‑May‑2011 | Venezuela F3 | Hard | R32 | 1760 | 1253 | (SE)Roberto Quiroz [ECU] d. (Q)Mantilla | 7-5 6-3 | | | | | | | | | |
25‑Apr‑2011 | Venezuela F1 | Hard | R32 | 1754 | 482 | (3)Mauricio Echazu [PER] d. (Q)Mantilla | 6-2 5-7 6-3 | | | | | | | | | |
7‑Feb‑2011 | Colombia F2 | Hard | R32 | 1711 | 1425 | (Q)Francisco Carbajal [PER] d. (WC)Mantilla | 5-7 6-2 1-0 RET | | | | | | | | | |
31‑Jan‑2011 | Colombia F1 | Clay | R32 | 1709 | 1600 | (LL)Sebastian Lopez [COL] d. (Q)Mantilla | 6-4 4-6 6-2 | | | | | | | | | |