# 2018 Delray Beach Open – Singles

Jack Sock was the defending champion, but lost in the second round to Reilly Opelka.
Frances Tiafoe won his first ATP World Tour title, defeating Peter Gojowczyk in the final, 6–1, 6–4.

## Seeds

* Jack Sock (second round)
* Juan Martín del Potro (second round)
* Kevin Anderson (withdrew)
* Sam Querrey (first round)
* Nick Kyrgios (withdrew)
* John Isner (second round)
* Adrian Mannarino (withdrew)
* Chung Hyeon (quarterfinals)
* Milos Raonic (second round)

## 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

### Finals

| Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| | Peter Gojowczyk | 7$^7$ | 6 | | | | |
| | Steve Johnson | 6$^3$ | 3 | | | | |
| | Steve Johnson | 6$^3$ | 3 | | Peter Gojowczyk | 1 | 4 |
| | | | | WC | Frances Tiafoe | 6 | 6 |
| | Denis Shapovalov | 5 | 4 | WC | Frances Tiafoe | 6 | 6 |
| WC | Frances Tiafoe | 7 | 6 | | | | |

### 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 |
| 1 | J Sock | 6 | 6 | | | | | | | | | | | | | |
| Q | J-P Smith | 4 | 4 | | 1 | J Sock | 6 | 5 | 3 | | | | | | | |
| WC | R Opelka | 7$^7$ | 7$^8$ | | WC | R Opelka | 4 | 7 | 6 | | | | | | | |
| | R Harrison | 6$^5$ | 6$^6$ | | | | | | | WC | R Opelka | 6$^5$ | 3 | | | |
| | L Lacko | 6 | 5 | 1 | | | | | | | P Gojowczyk | 7$^7$ | 6 | | | |
| | P Gojowczyk | 3 | 7 | 6 | | P Gojowczyk | 7$^7$ | 6$^4$ | 7$^7$ | | | | | | | |
| | R Albot | 7 | 3 | 4 | 6/WC | J Isner | 6$^3$ | 7$^7$ | 6$^5$ | | | | | | | |
| 6/WC | J Isner | 5 | 6 | 6 | | | | | | | | | | P Gojowczyk | 7$^7$ | 6 |
| LL | D King | 4 | 2 | | | | | | | | | | | S Johnson | 6$^3$ | 3 |
| | E Donskoy | 6 | 6 | | | E Donskoy | 7$^8$ | 6 | | | | | | | | |
| Q | R Ramanathan | 1 | 2 | | | D Young | 6$^6$ | 3 | | | | | | | | |
| | D Young | 6 | 6 | | | | | | | | E Donskoy | 1 | 4 | | | |
| | S Johnson | 6 | 6 | | | | | | | | S Johnson | 6 | 6 | | | |
| | N Basilashvili | 3 | 4 | | | S Johnson | 6 | 6 | | | | | | | | |
| | T Daniel | 1 | 5 | | 9 | M Raonic | 2 | 4 | | | | | | | | |
| 9 | M Raonic | 6 | 7 | | | | | | | | | | | | | |

### Bottom 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| LL | P Polansky | 6$^6$ | 1 | | | | | | | | | | | | | | | |
| | J Donaldson | 7$^8$ | 6 | | | J Donaldson | 7$^8$ | 4 | 4 | | | | | | | | | |
| | D Shapovalov | 7 | 7$^7$ | | | D Shapovalov | 6$^6$ | 6 | 6 | | | | | | | | | |
| | I Karlović | 5 | 6$^4$ | | | | | | | | D Shapovalov | 7 | 6 | | | | | |
| | M Youzhny | 7 | 6 | | | | | | | | T Fritz | 5 | 4 | | | | | |
| | D Sela | 5 | 4 | | | M Youzhny | 1 | 6 | 3 | | | | | | | | | |
| | T Fritz | 2 | 6 | 7$^7$ | | T Fritz | 6 | 4 | 6 | | | | | | | | | |
| 4 | S Querrey | 6 | 3 | 6$^4$ | | | | | | | | | | | | D Shapovalov | 5 | 4 |
| 8 | H Chung | 3 | 6 | 6 | | | | | | | | | | | WC | F Tiafoe | 7 | 6 |
| LL | C Norrie | 6 | 3 | 1 | 8 | H Chung | 6 | 7$^7$ | | | | | | | | | | |
| Q | F Škugor | 6 | 7 | | Q | F Škugor | 4 | 6$^4$ | | | | | | | | | | |
| Q | A Bublik | 2 | 5 | | | | | | | 8 | H Chung | 7 | 4 | 4 | | | | |
| | M Ebden | 2 | 6 | 2 | | | | | | WC | F Tiafoe | 5 | 6 | 6 | | | | |
| WC | F Tiafoe | 6 | 2 | 6 | WC | F Tiafoe | 7$^8$ | 4 | 7 | | | | | | | | | |
| | J Chardy | 2 | 4 | | 2 | JM del Potro | 6$^6$ | 6 | 5 | | | | | | | | | |
| 2 | JM del Potro | 6 | 6 | | | | | | | | | | | | | | | |

## Qualifying
### Seeds

* Bjorn Fratangelo (qualifying competition)
* Cameron Norrie (qualifying competition, lucky loser)
* Tim Smyczek (first round)
* Henri Laaksonen (first round)
* Adrián Menéndez Maceiras (first round)
* Alexander Bublik (qualified)
* Ernesto Escobedo (first round, retired)
* Ramkumar Ramanathan (qualified)

### Qualifiers

* Ramkumar Ramanathan
* John-Patrick Smith
* Alexander Bublik
* Franko Škugor

### Lucky losers

* Cameron Norrie
* Darian King
* Peter Polansky

### Qualifying draw
#### First qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 1 | Bjorn Fratangelo | 7$^7$ | 7$^7$ | | | | |
| Alt | Mitchell Krueger | 6$^4$ | 6$^3$ | | | | |
| Alt | Mitchell Krueger | 6$^4$ | 6$^3$ | 1 | Bjorn Fratangelo | 3 | 3 |
| | | | | 8 | Ramkumar Ramanathan | 6 | 6 |
| | Stefan Kozlov | 3 | 2 | 8 | Ramkumar Ramanathan | 6 | 6 |
| 8 | Ramkumar Ramanathan | 6 | 6 | | | | |

#### Second qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 2 | Cameron Norrie | 6 | 6 | | | | |
| | Liam Broady | 3 | 1 | | | | |
| | Liam Broady | 3 | 1 | 2 | Cameron Norrie | 5 | 4 |
| | | | | Alt | John-Patrick Smith | 7 | 6 |
| Alt | John-Patrick Smith | 6 | 3 | Alt | John-Patrick Smith | 7 | 6 |
| 7 | Ernesto Escobedo | 3 | 1$^r$ | | | | |

#### Third qualifier

| First round | First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 3 | Tim Smyczek | 3 | 7 | 4 | | | | | |
| | Darian King | 6 | 5 | 6 | | | | | |
| | Darian King | 6 | 5 | 6 | | Darian King | 6$^6$ | 6 | 4 |
| | | | | | 6 | Alexander Bublik | 7$^8$ | 3 | 6 |
| WC | Boris Kozlov | 1 | 4 | | 6 | Alexander Bublik | 7$^8$ | 3 | 6 |
| 6 | Alexander Bublik | 6 | 6 | | | | | | |

#### Fourth qualifier

| First round | First round | First round | First round | Qualifying competition | Qualifying competition | Qualifying competition | Qualifying competition |
| 4 | Henri Laaksonen | 3 | 4 | | | | |
| WC | Franko Škugor | 6 | 6 | | | | |
| WC | Franko Škugor | 6 | 6 | WC | Franko Škugor | 6 | 6 |
| | | | | | Peter Polansky | 2 | 4 |
| | Peter Polansky | 6 | 6 | | Peter Polansky | 2 | 4 |
| 5 | Adrián Menéndez Maceiras | 2 | 3 | | | | |