Horacio Zeballos defeated Rafael Nadal in the final, 6–7(2–7), 7–6(8–6), 6–4 to win the singles tennis title at the 2013 Chile Open. It was Nadal's first tournament in eight months.

Juan Mónaco was the defending champion, but lost to Guillaume Rufin in the second round.

Seeds

The top four seeds receive a bye into the second round.

  1. Spain Rafael Nadal (final)
  2. Argentina Juan Mónaco (second round)
  3. France Jérémy Chardy (semifinals)
  4. Spain Pablo Andújar (second round)
  5. Spain Albert Ramos (quarterfinals)
  6. Italy Paolo Lorenzi (quarterfinals)
  7. Spain Daniel Gimeno Traver (quarterfinals)
  8. Argentina Carlos Berlocq (semifinals)

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

SemifinalsFinal
1/WCSpain Rafael Nadal66
3France Jérémy Chardy22
1/WCSpain Rafael Nadal77664
Argentina Horacio Zeballos62786
Argentina Horacio Zeballos677
8Argentina Carlos Berlocq364

Top half

First roundSecond roundQuarterfinalsSemifinals
1/WCSpain R Nadal66
QArgentina F Delbonis27777QArgentina F Delbonis32
Argentina G Pella664611/WCSpain R Nadal66
WCChile N Massú78347Spain D Gimeno Traver14
Spain A Montañés6666Spain A Montañés44
Portugal J Sousa4617Spain D Gimeno Traver66
7Spain D Gimeno Traver6461/WCSpain R Nadal66
3France J Chardy22
3France J Chardy466
QSerbia D Lajović34WCChile C Garín632
WCChile C Garín663France J Chardy66
Spain P Riba226Italy P Lorenzi23
Spain T Robredo66Spain T Robredo44
QItaly G Naso146Italy P Lorenzi66
6Italy P Lorenzi66

Bottom half

First roundSecond roundQuarterfinalsSemifinals
5Spain A Ramos66
Brazil R Dutra da Silva415Spain A Ramos6567
Argentina L Mayer21Italy F Volandri7735
Italy F Volandri665Spain A Ramos1766
QArgentina D Schwartzman622Argentina H Zeballos6578
Argentina H Zeballos166Argentina H Zeballos66
4Spain P Andújar33
Argentina H Zeballos677
8Argentina C Berlocq668Argentina C Berlocq364
Russia A Kuznetsov218Argentina C Berlocq746
Argentina M Alund653Colombia S Giraldo564
Colombia S Giraldo4768Argentina C Berlocqw/o
France G Rufin66France G Rufin
Spain R Ramírez Hidalgo34France G Rufin776
2Argentina J Mónaco634

Qualifying

Seeds

  1. Argentina Federico Delbonis (qualified)
  2. Brazil João Souza (first round)
  3. Portugal Gastão Elias (qualifying competition)
  4. Chile Paul Capdeville (first round)
  5. Germany Dustin Brown (first round)
  6. Serbia Dušan Lajović (qualified)
  7. Argentina Diego Schwartzman (qualified)
  8. Argentina Guido Andreozzi (qualifying competition)

Qualifiers

  1. Argentina Federico Delbonis
  2. Argentina Diego Schwartzman
  3. Serbia Dušan Lajović
  4. Italy Gianluca Naso

Draw

First qualifier

First roundSecond roundQualifying competition
1Argentina Federico Delbonis657
Argentina Facundo Bagnis4764
1Argentina Federico Delbonis76
Spain Sergio Gutiérrez Ferrol51
Colombia Alejandro González24
Spain Sergio Gutiérrez Ferrol66
1Argentina Federico Delbonis66
8Argentina Guido Andreozzi32
Chile Jorge Aguilar561
Canada Steven Diez726
Canada Steven Diez624
8Argentina Guido Andreozzi366
WCChile Nicolás Jarry31
8Argentina Guido Andreozzi66

Second qualifier

First roundSecond roundQualifying competition
2Brazil João Souza42
Russia Teymuraz Gabashvili66
Russia Teymuraz Gabashvili66
Ecuador Julio César Campozano31
Ecuador Julio César Campozano776
Brazil Ricardo Hocevar640
Russia Teymuraz Gabashvili621
7Argentina Diego Schwartzman776
WCChile Gonzalo Lama777
Argentina Marco Trungelliti635
WCChile Gonzalo Lama77611
7Argentina Diego Schwartzman64776
Germany Julian Reister44
7Argentina Diego Schwartzman66

Third qualifier

First roundSecond roundQualifying competition
3Portugal Gastão Elias66
Brazil Fabiano de Paula33
3Portugal Gastão Elias66
Argentina Agustín Velotti42
Argentina Agustín Velotti6866
Argentina Diego Junqueira71034
3Portugal Gastão Elias367
6Serbia Dušan Lajović679
Spain Javier Martí6476
Italy Potito Starace7752
Spain Javier Martí6375
6Serbia Dušan Lajović7757
WCChile Juan Carlos Sáez632
6Serbia Dušan Lajović166

Fourth qualifier

First roundSecond roundQualifying competition
4Chile Paul Capdeville45
Italy Gianluca Naso67
Italy Gianluca Naso66
Chile Hans Podlipnik Castillo32
Brazil Guilherme Clezar6365
Chile Hans Podlipnik Castillo7727
Italy Gianluca Naso76
Portugal Frederico Gil53
WCChile Bastian Malla11
Argentina Facundo Argüello66
Argentina Facundo Argüello24
Portugal Frederico Gil66
Portugal Frederico Gil66
5Germany Dustin Brown24