Kei Nishikori was the four-time defending champion, but chose to compete in Buenos Aires instead.

Ryan Harrison won his first ATP World Tour singles title, defeating Nikoloz Basilashvili in the final, 6–1, 6–4. This was the first time in the tournament's 41-year history that no seeded players reached the semifinals. It was also the first ATP tour level event where this happened since 2013 at Nice.

Seeds

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

  1. Croatia Ivo Karlović (second round)
  2. United States John Isner (quarterfinals)
  3. United States Sam Querrey (second round)
  4. United States Steve Johnson (quarterfinals)
  5. Australia Bernard Tomic (first round)
  6. France Adrian Mannarino (first round)
  7. Belgium Steve Darcis (second round)
  8. Chinese Taipei Lu Yen-hsun (first round)

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
Georgia (country) Nikoloz Basilashvili776
Kazakhstan Mikhail Kukushkin651
Georgia (country) Nikoloz Basilashvili14
United States Ryan Harrison66
United States Ryan Harrison66
United States Donald Young44

Top half

First roundSecond roundQuarterfinalsSemifinals
1Croatia I Karlović623
Georgia (country) N Basilashvili66Georgia (country) N Basilashvili776
Australia J Thompson30Georgia (country) N Basilashvili776
QCanada P Polansky7731QAustralia M Ebden634
QAustralia M Ebden6466QAustralia M Ebden646
United States T Fritz47779United States T Fritz463
8Chinese Taipei Y-h Lu66467Georgia (country) N Basilashvili776
Kazakhstan M Kukushkin651
4United States S Johnson366
WCUnited States F Tiafoe373QUnited States T Smyczek642
QUnited States T Smyczek6564United States S Johnson04
Kazakhstan M Kukushkin66Kazakhstan M Kukushkin66
LLGermany B Becker34Kazakhstan M Kukushkin66
QBarbados D King66QBarbados D King30
5Australia B Tomic44

Bottom half

First roundSecond roundQuarterfinalsSemifinals
7Belgium S Darcis736
Moldova R Albot5647Belgium S Darcis624
Bosnia and Herzegovina D Džumhur66776Bosnia and Herzegovina D Džumhur776
South Africa K Anderson78624Bosnia and Herzegovina D Džumhur34
United States R Harrison67United States R Harrison66
Russia K Kravchuk35United States R Harrison66
3United States S Querrey31
United States R Harrison66
6France A Mannarino6564United States D Young44
United States D Young3777United States D Young776
WCUnited States R Opelka67WCUnited States R Opelka633
WCUnited States J Donaldson15United States D Young77378
Japan Y Nishioka662United States J Isner65666
Spain G García López44Japan Y Nishioka634
2United States J Isner466

Qualifying

Seeds

  1. Canada Peter Polansky (qualified)
  2. Germany Benjamin Becker (qualifying competition, lucky loser)
  3. United States Denis Kudla (first round)
  4. Barbados Darian King (qualified)
  5. Sweden Elias Ymer (first round)
  6. United States Tim Smyczek (qualified)
  7. Japan Tatsuma Ito (qualifying competition, retired)
  8. Australia Matthew Barton (qualifying competition)

Qualifiers

  1. Canada Peter Polansky
  2. United States Tim Smyczek
  3. Australia Matthew Ebden
  4. Barbados Darian King

Lucky loser

  1. Germany Benjamin Becker

Qualifying draw

First qualifier

First roundQualifying competition
1Canada Peter Polansky66
AltIndia Jeevan Nedunchezhiyan33
1Canada Peter Polansky66
8Australia Matthew Barton21
WCUnited States Tommy Paul3665
8Australia Matthew Barton6377

Second qualifier

First roundQualifying competition
2Germany Benjamin Becker66
AltCroatia Nikola Mektić33
2Germany Benjamin Becker
6United States Tim Smyczekw/o
WCUnited States Scott Lipsky23
6United States Tim Smyczek66

Third qualifier

First roundQualifying competition
3United States Denis Kudla6461
PRAustralia Matthew Ebden7716
PRAustralia Matthew Ebden66
AltUnited States Brian Baker24
AltUnited States Brian Baker66
5Sweden Elias Ymer44

Fourth qualifier

First roundQualifying competition
4Barbados Darian King66
AltUnited Kingdom Andrew Watson23
4Barbados Darian King63
7Japan Tatsuma Ito10r
Republic of Ireland James McGee6641
7Japan Tatsuma Ito4776