{{Infobox tennis event|2018|Argentina Open| | date=12–18 February | edition=21st | category=[[ATP World Tour 250 series]] | prize_money=$546,680 | draw=28S/16D | surface=[[clay court|clay]] | location=[[Buenos Aires]], [[Argentina]] | champs={{flagicon|AUT}} [[Dominic Thiem]] | champd={{flagicon|ARG}} [[Andrés Molteni]] / {{flagicon|ARG}} [[Horacio Zeballos]] | main_name=ATP Buenos Aires }}

The '''2018 Argentina Open''' was a men's [[tennis]] tournament played on outdoor [[clay court]]s. It was the 21st edition of the [[ATP Buenos Aires]] event, and part of the [[ATP World Tour 250 series]] of the [[2018 ATP World Tour]]. It took place in [[Buenos Aires]], [[Argentina]], from February 12 through 18, 2018.

== Points and prize money ==

=== Point distribution === {|class=wikitable style=font-size:90%;text-align:center |- | style="width:130px; background:#eaeaea;"|'''Event''' | style="width:80px; background:lime;"|'''W''' | style="width:85px; background:thistle;"|F | style="width:85px; background:#ff0;"|SF | style="width:85px; background:#ffebcd;"|QF | style="width:85px; background:#afeeee;"|Round of 16 | style="width:85px; background:#afeeee;"|Round of 32 |width=85 |Q |width=85 |Q2 |width=85 |Q1 |- ! style="background:#f4f4f4;"| Singles |rowspan=2|250 |rowspan=2|150 |rowspan=2|90 |rowspan=2|45 |20 |0 |12 |6 |0 |- ! style="background:#f4f4f4;"| Doubles | 0 | {{n/a}} | {{n/a}} | {{n/a}} | {{n/a}} |}

=== Prize money === {|class=wikitable style=font-size:90%;text-align:center |- | style="width:130px; background:#eaeaea;"|'''Event''' | style="width:80px; background:lime;"|'''W''' | style="width:85px; background:thistle;"|F | style="width:85px; background:#ff0;"|SF | style="width:85px; background:#ffebcd;"|QF | style="width:85px; background:#afeeee;"|Round of 16 | style="width:85px; background:#afeeee;"|Round of 32 |width=85 |Q2 |width=85 |Q1 |- | style="background:#f4f4f4;"|'''Singles''' |$97,470 |$51,355 |$27,810 |$15,840 |$9,335 |$5,530 |$2,490 |$1,240 |- | style="background:#f4f4f4;"|'''Doubles''' |$29,610 |$15,570 |$8,430 |$4,830 |$2,830 | {{n/a}} | {{n/a}} | {{n/a}} |- |colspan=9|Doubles prize money per team |}

== Singles main-draw entrants ==

=== Seeds === {|class="sortable wikitable" |- ! width="70"| Country ! width="175"| Player ! Rank<sup>1</sup> ! Seed |-style="background:#cfc;" |{{flag|AUT}} |[[Dominic Thiem]] |6 |1 |- |{{flag|ESP}} |[[Pablo Carreño Busta]] |10 |2 |- |{{flag|ESP}} |[[Albert Ramos Viñolas]] |21 |3 |- |{{flag|ITA}} |[[Fabio Fognini]] |22 |4 |- |{{flag|ARG}} |[[Diego Schwartzman]] |24 |5 |- |{{flag|GBR}} |[[Kyle Edmund]] |26 |6 |- |{{flag|URU}} |[[Pablo Cuevas]] |32 |7 |- |{{flag|ESP}} |[[Fernando Verdasco]] |40 |8 |} * <sup>1</sup> Rankings are as of February 5, 2018.<ref>{{cite news |url= https://losandes.com.ar/article/view?slug=el-argentina-open-se-lanza-con-la-confirmacion-de-dos-top-ten |title=El Argentina Open se lanza con la confirmación de dos top ten |date= 7 November 2017}}</ref>

=== Other entrants === The following players received wildcards into the singles main draw: * {{flagicon|ARG}} [[Carlos Berlocq]] * {{flagicon|ARG}} [[Pedro Cachin]] * {{flagicon|ARG}} [[Nicolás Kicker]]

The following players received entry as special exempts: * {{flagicon|ESP}} [[Roberto Carballés Baena]] * {{flagicon|BRA}} [[Thiago Monteiro (tennis)|Thiago Monteiro]]

The following players received entry using a protected ranking: * {{flagicon|AUT}} [[Andreas Haider-Maurer]]

The following players received entry from the qualifying draw: * {{flagicon|ARG}} [[Facundo Bagnis]] * {{flagicon|BRA}} [[Thomaz Bellucci]] * {{flagicon|ITA}} [[Marco Cecchinato]] * {{flagicon|BRA}} [[Rogério Dutra Silva]]

=== Withdrawals === ;Before the tournament * {{flagicon|CRO}} [[Marin Čilić]] → replaced by {{flagicon|ESP}} [[Guillermo García López]] * {{flagicon|UKR}} [[Alexandr Dolgopolov]] → replaced by {{flagicon|GER}} [[Florian Mayer]] * {{flagicon|GBR}} [[Kyle Edmund]] → replaced by {{flagicon|POR}} [[Gastão Elias]] * {{flagicon|ITA}} [[Paolo Lorenzi]] → replaced by {{flagicon|SRB}} [[Dušan Lajović]]

== Doubles main-draw entrants ==

=== Seeds === {|class="sortable wikitable" |- ! width="70"| Country ! width="175"| Player ! width="70"| Country ! width="175"| Player ! Rank<sup>1</sup> ! Seed |-style="background:#fcc;" |{{flag|COL}} |[[Juan Sebastián Cabal]] |{{flag|COL}} |[[Robert Farah (tennis)|Robert Farah]] |35 |1 |- |{{flag|MEX}} |[[Santiago González (tennis)|Santiago González]] |{{flag|CHI}} |[[Julio Peralta]] |57 |2 |- |{{flag|CRO}} |[[Nikola Mektić]] |{{flag|AUT}} |[[Alexander Peya]] |80 |3 |-style="background:#cfc;" |{{flag|ARG}} |[[Andrés Molteni]] |{{flag|ARG}} |[[Horacio Zeballos]] |84 |4 |} * <sup>1</sup> Rankings are as of February 5, 2018.

=== Other entrants === The following pairs received wildcards into the doubles main draw: * {{flagicon|FRA}} [[Dorian Descloix]] / {{flagicon|FRA}} [[Gaël Monfils]] * {{flagicon|ARG}} [[Guillermo Durán]] / {{flagicon|ARG}} [[Máximo González]]

=== Withdrawals === ;During the tournament * {{flagicon|ESP}} [[Pablo Carreño Busta]]

== Finals ==

=== Singles === {{main|2018 Argentina Open – Singles}} * {{flagicon|AUT}} [[Dominic Thiem]] defeated {{flagicon|SLO}} [[Aljaž Bedene]], 6–2, 6–4

=== Doubles === {{main|2018 Argentina Open – Doubles}} * {{flagicon|ARG}} [[Andrés Molteni]] / {{flagicon|ARG}} [[Horacio Zeballos]] defeated {{flagicon|COL}} [[Juan Sebastián Cabal]] / {{flagicon|COL}} [[Robert Farah (tennis)|Robert Farah]], 6–3, 5–7, [10–3]

== References == {{reflist}}

== External links ==

* {{Official website|http://argentinaopenatp.com/atp/}}

{{ATP Buenos Aires tournaments}} {{2018 ATP World Tour}}

[[Category:2018 in Argentine tennis|Argentina Open]] [[Category:2018 ATP World Tour|Argentina Open]] [[Category:February 2018 sports events in South America|Argentina Open]] [[Category:ATP Buenos Aires]]