# 2015 Royal Lahaina Challenger – Singles

Bradley Klahn was the defending champion, but lost in the semifinals to Jared Donaldson.
Donaldson went on to win the title, defeating Nicolas Meister 6–1, 6–4 in the final.

## Seeds

* Denis Kudla (second round)
* Bradley Klahn (semifinals)
* Michael Russell (second round)
* Ryan Harrison (first round)
* Wayne Odesnik (second round)
* Denys Molchanov (first round)
* Chase Buchanan (second round)
* Jarmere Jenkins (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 |
| Q | Nicolas Meister | 7$^7$ | 6 | | | | |
| | James McGee | 6$^5$ | 2 | | | | |
| | James McGee | 6$^5$ | 2 | Q | Nicolas Meister | 1 | 4 |
| | | | | | Jared Donaldson | 6 | 6 |
| | Jared Donaldson | 7 | 7$^7$ | | Jared Donaldson | 6 | 6 |
| 2 | Bradley Klahn | 5 | 6$^4$ | | | | |

### 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 |
| 1 | D Kudla | 7 | 6 | | | | | | | | | | | | | | | |
| | M Reid | 5 | 3 | | 1 | D Kudla | 6 | 4 | 4 | | | | | | | | | |
| Q | T Garanganga | 3 | 6 | 6 | Q | T Garanganga | 3 | 6 | 6 | | | | | | | | | |
| Q | C Wang | 6 | 3 | 2 | | | | | | Q | T Garanganga | 3 | 7$^7$ | 2 | | | | |
| Q | N Meister | 6 | 6 | | | | | | | Q | N Meister | 6 | 6$^3$ | 6 | | | | |
| PR | R Sweeting | 3 | 0 | | Q | N Meister | 7$^7$ | 6 | | | | | | | | | | |
| | T Niki | 6 | 6$^2$ | 6 | | T Niki | 6$^0$ | 1 | | | | | | | | | | |
| 6 | D Molchanov | 3 | 7$^7$ | 2 | | | | | | | | | | | Q | N Meister | 7$^7$ | 6 |
| 3 | M Russell | 2 | 6 | 6 | | | | | | | | | | | | J McGee | 6$^5$ | 2 |
| WC | M Krueger | 6 | 1 | 3 | 3 | M Russell | 6$^2$ | 3 | | | | | | | | | | |
| Q | S Bangoura | 4 | 2 | | WC | S Kozlov | 7$^7$ | 6 | | | | | | | | | | |
| WC | S Kozlov | 6 | 6 | | | | | | | WC | S Kozlov | 6$^6$ | 2 | | | | | |
| WC | Marko Lenz | 3 | 3 | | | | | | | | J McGee | 7$^8$ | 6 | | | | | |
| | J McGee | 6 | 6 | | | J McGee | 6 | 6 | | | | | | | | | | |
| | Henrique Cunha | 2 | 3 | | 5 | W Odesnik | 4 | 4 | | | | | | | | | | |
| 5 | W Odesnik | 6 | 6 | | | | | | | | | | | | | | | |

### 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 | Semifinals |
| 7 | C Buchanan | 4 | 7$^7$ | 6 | | | | | | | | | | | | | |
| | D Nguyen | 6 | 6$^4$ | 3 | 7 | C Buchanan | 1 | 3 | | | | | | | | | |
| | J Donaldson | 7 | 7$^8$ | | | J Donaldson | 6 | 6 | | | | | | | | | |
| | Y Uchiyama | 5 | 6$^6$ | | | | | | | | J Donaldson | 6 | 7$^7$ | | | | |
| | D Kutrovsky | 7 | 6$^6$ | 1 | | | | | | | D Novikov | 3 | 6$^5$ | | | | |
| | D King | 5 | 7$^8$ | 6 | | D King | 4 | 3 | | | | | | | | | |
| | D Novikov | 6 | 3 | 6 | | D Novikov | 6 | 6 | | | | | | | | | |
| 4 | R Harrison | 4 | 6 | 3 | | | | | | | | | | | J Donaldson | 7 | 7$^7$ |
| 8 | J Jenkins | 2 | 3 | | | | | | | | | | | 2 | B Klahn | 5 | 6$^4$ |
| | S Ehrat | 6 | 6 | | | S Ehrat | 1 | 6 | 6 | | | | | | | | |
| | R Williams | 6 | 6 | | | R Williams | 6 | 2 | 4 | | | | | | | | |
| WC | Thibaud Berland | 1 | 3 | | | | | | | | S Ehrat | 5 | 4 | | | | |
| | F Nielsen | 2 | 6 | 6 | | | | | | 2 | B Klahn | 7 | 6 | | | | |
| | J Jung | 6 | 4 | 1 | | F Nielsen | 3 | 4 | | | | | | | | | |
| | B Fratangelo | 5 | 1$^r$ | | 2 | B Klahn | 6 | 6 | | | | | | | | | |
| 2 | B Klahn | 7 | 4 | | | | | | | | | | | | | | |