# 2014 Royal Lahaina Challenger – Singles

Go Soeda was the two-time defending champion but chose not to compete.
Klahn won the title, defeating Yang Tsung-hua in the final, 6–2, 6–3.

## Seeds

* Alex Bogomolov Jr. (withdrew due to a bicep injury)
* Tim Smyczek (semifinal)
* Bradley Klahn (champion)
* Jack Sock (first round, retired)
* Ryan Harrison (first round)
* Denis Kudla (second round)
* Frank Dancevic (second round)
* Wayne Odesnik (first round)
* Alex Kuznetsov (first 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 |
| | Tatsuma Ito | 2 | 1 | | | | |
| 3 | Bradley Klahn | 6 | 6 | | | | |
| 3 | Bradley Klahn | 6 | 6 | 3 | Bradley Klahn | 6 | 6 |
| | | | | | Yang Tsung-hua | 2 | 3 |
| | Yang Tsung-hua | 7$^7$ | 6 | | Yang Tsung-hua | 2 | 3 |
| 2/Alt | Tim Smyczek | 6$^5$ | 4 | | | | |

### 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 9 | A Kuznetsov | 4 | 1 | | | | | | | | | | | | | | | |
| WC | Thibaud Berland | 6 | 6 | | WC | T Berland | 2 | 2 | | | | | | | | | | |
| | D Molchanov | 6 | 6 | | | D Molchanov | 6 | 6 | | | | | | | | | | |
| LL | K Takeuchi | 1 | 4 | | | | | | | | D Molchanov | 6 | 3 | 6$^5$ | | | | |
| | J McGee | 6 | 4 | | | | | | | | T Ito | 4 | 6 | 7$^7$ | | | | |
| | T Ito | 7 | 6 | | | T Ito | 3 | 7 | 6 | | | | | | | | | |
| | J Ward | 4 | 3 | | 6 | D Kudla | 6 | 5 | 4 | | | | | | | | | |
| 6 | D Kudla | 6 | 6 | | | | | | | | | | | | | T Ito | 1 | 2 |
| 3 | B Klahn | 6 | 7$^7$ | | | | | | | | | | | | 3 | B Klahn | 6 | 6 |
| WC | Petr Michnev | 3 | 6$^3$ | | 3 | B Klahn | 7$^{11}$ | 6 | | | | | | | | | | |
| Q | J Donaldson | 6 | 3 | | WC | M Giron | 6$^9$ | 0 | | | | | | | | | | |
| WC | M Giron | 7$^7$ | 6 | | | | | | | 3 | B Klahn | 6 | 6 | | | | | |
| WC | M Krueger | 7$^7$ | 4 | 5 | | | | | | | P Polansky | 3 | 2 | | | | | |
| | P Polansky | 6$^1$ | 6 | 7 | | P Polansky | 6 | 7$^7$ | | | | | | | | | | |
| | M Zverev | 3 | 7$^7$ | 6 | | M Zverev | 4 | 6$^5$ | | | | | | | | | | |
| 5 | R Harrison | 6 | 6$^2$ | 1 | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 7 | F Dancevic | 7$^7$ | 6 | | | | | | | | | | | | | | |
| | Y Uchiyama | 6$^2$ | 0 | | 7 | F Dancevic | 5 | 3 | | | | | | | | | |
| Q | D Kosakowski | 6 | 4 | 6$^5$ | | T Garanganga | 7 | 6 | | | | | | | | | |
| | T Garanganga | 2 | 6 | 7$^7$ | | | | | | T Garanganga | 6 | 3 | 4 | | | | |
| LL | J Jenkins | 6 | 6 | | | | | | | T-h Yang | 3 | 6 | 6 | | | | |
| | J Wang | 3 | 2 | | LL | J Jenkins | 6$^6$ | 2 | | | | | | | | | |
| | T-h Yang | 6 | 2 | | | T-h Yang | 7$^8$ | 6 | | | | | | | | | |
| 4 | J Sock | 4 | 1$^r$ | | | | | | | | | | | | T-h Yang | 7$^7$ | 6 |
| 8 | W Odesnik | 3 | 3 | | | | | | | | | | | 2/Alt | T Smyczek | 6$^5$ | 4 |
| | T Sandgren | 6 | 6 | | | T Sandgren | 6$^4$ | 4 | | | | | | | | | |
| Q | M Jaziri | 1 | 3 | | | A Krajicek | 7$^7$ | 6 | | | | | | | | | |
| | A Krajicek | 6 | 6 | | | | | | | A Krajicek | 3 | 4 | | | | | |
| | S Johnson | 7$^7$ | 2 | 6 | | | | | 2/Alt | T Smyczek | 6 | 6 | | | | | |
| Q | C-f Wang | 6$^4$ | 6 | 1 | | S Johnson | 2 | 3 | | | | | | | | | |
| | H Moriya | 2 | 4 | | 2/Alt | T Smyczek | 6 | 6 | | | | | | | | | |
| 2/Alt | T Smyczek | 6 | 6 | | | | | | | | | | | | | | |