# 2010 Challenger Ciudad de Guayaquil – Singles

Nicolás Lapentti was the defending champion; however, he retired from professional tennis before this tournament. Paul Capdeville won the title, defeating Diego Junqueira 6–3, 3–6, 6–3 in the final.

## Seeds

* Carlos Berlocq (semifinals)
* Brian Dabul (first round)
* João Souza (second round)
* Horacio Zeballos (first round)
* Grega Žemlja (second round)
* Marcos Daniel (quarterfinals, retired)
* Máximo González (semifinals)
* Éric Prodon (quarterfinals)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Final four

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 1 | Carlos Berlocq | 3 | 5 | | | | | |
| | Diego Junqueira | 6 | 7 | | | | | |
| | Diego Junqueira | 6 | 7 | | Diego Junqueira | 3 | 6 | 3 |
| | | | | | Paul Capdeville | 6 | 3 | 6 |
| | Paul Capdeville | 7 | 3 | 6 | Paul Capdeville | 6 | 3 | 6 |
| 7 | Máximo González | 6$^4$ | 6 | 2 | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | C Berlocq | 6 | 6 | | | | | | | | | | | | | | |
| Q | G Naso | 0 | 3 | | 1 | C Berlocq | 6 | 6 | | | | | | | | | |
| | R Farah | 6 | 6 | | | R Farah | 3 | 0 | | | | | | | | | |
| WC | JC Campozano | 4 | 1 | | | | | | | 1 | C Berlocq | 6 | 6 | | | | |
| | A Gensse | 6 | 6 | | | | | | | 8 | É Prodon | 2 | 2 | | | | |
| WC | E Gómez | 4 | 4 | | | A Gensse | 3 | 5 | | | | | | | | | |
| Q | B Balleret | 2 | 4 | | 8 | É Prodon | 6 | 7 | | | | | | | | | |
| 8 | É Prodon | 6 | 6 | | | | | | | | | | | 1 | C Berlocq | 3 | 5 |
| 3 | J Souza | 6 | 6 | | | | | | | | | | | | D Junqueira | 6 | 7 |
| WC | R Quiroz | 1 | 2 | | 3 | J Souza | 7 | 4 | 4 | | | | | | | | |
| | D Junqueira | 6 | 1 | 7 | | D Junqueira | 5 | 6 | 6 | | | | | | | | |
| | R Hocevar | 3 | 6 | 5 | | | | | | | D Junqueira | 1 | | | | | |
| | J Aguilar | 6 | 6 | | | | | | | 6 | M Daniel | 4 | r | | | | |
| Q | Andrea Arnaboldi | 2 | 4 | | | J Aguilar | 3 | 2 | | | | | | | | | |
| | S González | 4 | 2 | | 6 | M Daniel | 6 | 6 | | | | | | | | | |
| 6 | M Daniel | 6 | 6 | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 5 | G Žemlja | 6 | 6$^6$ | 6 | | | | | | | | | | | | | | |
| | C Salamanca | 3 | 7 | 3 | 5 | G Žemlja | 4 | 3 | | | | | | | | | | |
| | P Capdeville | 6 | 6 | | | P Capdeville | 6 | 6 | | | | | | | | | | |
| | JS Cabal | 1 | 4 | | | | | | | P Capdeville | 0 | 7 | 6 | | | | | |
| | G Rufin | 4 | 6 | 7 | | | | | | G Lapentti | 6 | 5 | 4 | | | | | |
| | M Alund | 6 | 2 | 6$^2$ | | G Rufin | w/o | | | | | | | | | | | |
| | G Lapentti | 6$^4$ | 6 | 6 | | G Lapentti | | | | | | | | | | | | |
| 4 | H Zeballos | 7 | 4 | 4 | | | | | | | | | | | P Capdeville | 7 | 3 | 6 |
| 7 | M González | 6 | 5 | 7 | | | | | | | | | | 7 | M González | 6$^4$ | 6 | 2 |
| | L Tavares | 4 | 7 | 5 | 7 | M González | 6 | 6 | | | | | | | | | | |
| WC | E Nunez | 3 | 5 | | | V Estrella | 2 | 0 | | | | | | | | | | |
| | V Estrella | 6 | 7 | | | | | | 7 | M González | 7 | 6 | | | | | | |
| Q | M Vassallo Argüello | 7 | 6 | | | | | | | R Dutra da Silva | 6$^2$ | 0 | | | | | | |
| | F Bagnis | 5 | 1 | | Q | M Vassallo Argüello | 6 | r | | | | | | | | | | |
| | R Dutra da Silva | 6 | 7 | | | R Dutra da Silva | 6 | | | | | | | | | | | |
| 2 | B Dabul | 4 | 5 | | | | | | | | | | | | | | | |