title: 2018 RBC Tennis Championships of Dallas – Singles
text: # 2018 RBC Tennis Championships of Dallas – Singles
  
  Ryan Harrison was the defending champion but chose not to defend his title.
  
  Kei Nishikori won the title after defeating Mackenzie McDonald 6–1, 6–4 in the final.
  
  ## Seeds
  
  * Kei Nishikori (champion)
  * Frances Tiafoe (second round)
  * Taylor Fritz (quarterfinals)
  * Bjorn Fratangelo (first round)
  * Alexander Bublik (first round)
  * Yannick Hanfmann (first round)
  * Tim Smyczek (quarterfinals)
  * Tommy Paul (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 |
  | - | - | - | - | - | - | - | - |
  | 1/WC | Kei Nishikori | 6 | 6 | | | | |
  | | Jason Jung | 4 | 4 | | | | |
  | | Jason Jung | 4 | 4 | 1/WC | Kei Nishikori | 6 | 6 |
  | | | | | | Mackenzie McDonald | 1 | 4 |
  | | Denis Kudla | 4 | 4 | | Mackenzie McDonald | 1 | 4 |
  | | Mackenzie McDonald | 6 | 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 | Semifinals |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | 1/WC | K Nishikori | 6 | 6 | | | | | | | | | | | | | | |
  | | D Novikov | 3 | 3 | | 1/WC | K Nishikori | 4 | 6 | 6 | | | | | | | | |
  | | M Bachinger | 2 | 6 | 6 | | M Bachinger | 6 | 4 | 4 | | | | | | | | |
  | Q | E Karlovskiy | 6 | 3 | 4 | | | | | | 1/WC | K Nishikori | $7^7$ | 6 | | | | |
  | LL | Francesco Ferrari | $7^8$ | 2 | 2 | | | | | | LL | D Köpfer | $6^3$ | 3 | | | | |
  | LL | D Köpfer | $6^6$ | 6 | 6 | LL | D Köpfer | 6 | 7 | | | | | | | | | |
  | | G Oliveira | $7^7$ | $7^7$ | | | G Oliveira | 0 | 5 | | | | | | | | | |
  | 6 | Y Hanfmann | $6^3$ | $6^5$ | | | | | | | | | | | 1/WC | K Nishikori | 6 | 6 |
  | 4 | B Fratangelo | 4 | 6 | 4 | | | | | | | | | | | J Jung | 4 | 4 |
  | | M Kecmanović | 6 | 3 | 6 | | M Kecmanović | $7^7$ | $6^5$ | $7^7$ | | | | | | | | |
  | | A Krajicek | 6 | 6 | | | A Krajicek | $6^4$ | $7^7$ | $6^4$ | | | | | | | | |
  | | F Peliwo | 3 | 3 | | | | | | | | M Kecmanović | 1 | 1 | | | | |
  | | B Schnur | 7 | 2 | $6^7$ | | | | | | | J Jung | 6 | 6 | | | | |
  | Q | Jared Hiltzik | 5 | 6 | $7^9$ | Q | J Hiltzik | 6 | 1 | 4 | | | | | | | | |
  | | J Jung | 6 | 6 | | | J Jung | 4 | 6 | 6 | | | | | | | | |
  | 5 | A Bublik | 4 | 4 | | | | | | | | | | | | | | |
  
  ### 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 | Semifinals | Semifinals | Semifinals |
  | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
  | 8 | T Paul | 6 | 6 | | | | | | | | | | | | | |
  | Q | J Šátral | 3 | 3 | | 8 | T Paul | $6^6$ | 4 | | | | | | | | |
  | | D Kudla | 6 | 6 | | | D Kudla | $7^8$ | 6 | | | | | | | | |
  | WC | P Kypson | 3 | 1 | | | | | | | | D Kudla | 6 | 6 | | | |
  | | B Klahn | 6 | 2 | 6 | | | | | | 3 | T Fritz | 3 | 3 | | | |
  | | M Giron | 4 | 6 | 4 | | B Klahn | 4 | 6 | $6^2$ | | | | | | | |
  | Q | Í Cervantes | 2 | 7 | 1 | 3 | T Fritz | 6 | 2 | $7^7$ | | | | | | | |
  | 3 | T Fritz | 6 | 5 | 6 | | | | | | | | | | D Kudla | 4 | 4 |
  | 7 | T Smyczek | 6 | 4 | 6 | | | | | | | | | | M McDonald | 6 | 6 |
  | | M Krueger | 1 | 6 | 3 | 7 | T Smyczek | 6 | 6 | | | | | | | | |
  | | A Pavić | 6 | $6^6$ | $6^9$ | | A Collarini | 4 | 4 | | | | | | | | |
  | | A Collarini | 1 | $7^8$ | $7^{11}$ | | | | | | 7 | T Smyczek | 4 | 2 | | | |
  | | M McDonald | 7 | 6 | | | | | | | | M McDonald | 6 | 6 | | | |
  | | T Ito | 5 | 3 | | | M McDonald | 7 | 2 | 6 | | | | | | | |
  | | S Kozlov | 2 | $6^5$ | | 2/WC | F Tiafoe | 5 | 6 | 3 | | | | | | | |
  | 2/WC | F Tiafoe | 6 | $7^7$ | | | | | | | | | | | | | |
  