# 2015 Las Vegas Challenger – Singles

This was the first edition of the tournament, Thiemo de Bakker won the title defeating Grega Žemlja in the final 3–6, 6–3, 6–1.

## Seeds

* Austin Krajicek (quarterfinals)
* Tim Smyczek (second round)
* Ryan Harrison (first round)
* Dustin Brown (first round)
* Blaž Rola (quarterfinals)
* Jared Donaldson (quarterfinals)
* Thiemo de Bakker (champion)
* Dennis Novikov (semifinals)

## 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 | Semifinals | Final | Final | Final | Final | Final |
| 8 | Dennis Novikov | 6 | 2 | 6$^5$ | | | | | |
| | Grega Žemlja | 4 | 6 | 7$^7$ | | | | | |
| | Grega Žemlja | 4 | 6 | 7$^7$ | | Grega Žemlja | 6 | 3 | 1 |
| | | | | | 7 | Thiemo de Bakker | 3 | 6 | 6 |
| 7 | Thiemo de Bakker | 7$^7$ | 4 | 6 | 7 | Thiemo de Bakker | 3 | 6 | 6 |
| | Blaž Kavčič | 6$^5$ | 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 | Semifinals |
| 1 | A Krajicek | 6 | 6 | | | | | | | | | | | | | | | | |
| | L Broady | 3 | 2 | | 1 | A Krajicek | 7 | 7 | | | | | | | | | | | |
| Q | H Laaksonen | 5 | 2 | | | M Michalička | 5 | 5 | | | | | | | | | | | |
| | M Michalička | 7 | 6 | | | | | | | 1 | A Krajicek | 6$^2$ | 6 | 6$^3$ | | | | | |
| | D Evans | 3 | 6 | 6 | | | | | | 8 | D Novikov | 7$^7$ | 3 | 7$^7$ | | | | | |
| | A Sarkissian | 6 | 4 | 3 | | D Evans | 4 | 6$^2$ | | | | | | | | | | | |
| WC | Evan Song | 4 | 4 | | 8 | D Novikov | 6 | 7$^7$ | | | | | | | | | | | |
| 8 | D Novikov | 6 | 6 | | | | | | | | | | | | 8 | D Novikov | 6 | 2 | 6$^5$ |
| 4 | D Brown | 6$^5$ | 6 | 3 | | | | | | | | | | | | G Žemlja | 4 | 6 | 7$^7$ |
| | G Žemlja | 7$^7$ | 1 | 6 | | G Žemlja | 6$^6$ | 6 | 6 | | | | | | | | | | |
| SE | T Fritz | 6 | 6 | | SE | T Fritz | 7$^8$ | 2 | 2 | | | | | | | | | | |
| | N Barrientos | 3 | 2 | | | | | | | | G Žemlja | 6 | 3 | 6 | | | | | |
| | F Tiafoe | 6 | 4 | 7$^8$ | | | | | | 5 | B Rola | 2 | 6 | 3 | | | | | |
| Q | Dennis Nevolo | 2 | 6 | 6$^6$ | | F Tiafoe | 1 | 4 | | | | | | | | | | | |
| Q | E Struvay | 6$^6$ | 4 | | 5 | B Rola | 6 | 6 | | | | | | | | | | | |
| 5 | B Rola | 7$^8$ | 6 | | | | | | | | | | | | | | | | |

### Bottom half

| 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 | Semifinals |
| 7 | T de Bakker | 6 | 6 | | | | | | | | | | | | | | | |
| | M Krueger | 2 | 4 | 7 | T de Bakker | 6 | 6 | | | | | | | | | | | |
| WC | Jakob Amilon | 0 | 2 | | D King | 2 | 4 | | | | | | | | | | | |
| | D King | 6 | 6 | | | | | | 7 | T de Bakker | 6 | 6 | | | | | | |
| | G Lapentti | 6 | 6 | | | | | | WC | M Mmoh | 1 | 3 | | | | | | |
| WC | Ace Matias | 3 | 0 | | G Lapentti | 3 | 6 | 3 | | | | | | | | | | |
| WC | M Mmoh | 6 | 6 | WC | M Mmoh | 6 | 3 | 6 | | | | | | | | | | |
| 3 | R Harrison | 2 | 3 | | | | | | | | | | | 7 | T de Bakker | 7$^7$ | 4 | 6 |
| 6 | J Donaldson | 6 | 6 | | | | | | | | | | | | B Kavčič | 6$^5$ | 6 | 4 |
| | J McGee | 3 | 1 | 6 | J Donaldson | 6 | 2 | 7$^7$ | | | | | | | | | | |
| Q | E Quigley | 6 | 7$^7$ | Q | E Quigley | 2 | 6 | 6$^4$ | | | | | | | | | | |
| | C Buchanan | 0 | 6$^4$ | | | | | | 6 | J Donaldson | 6 | 5 | 1 | | | | | |
| | P Bester | 5 | 0 | | | | | | | B Kavčič | 3 | 7 | 6 | | | | | |
| | B Kavčič | 7 | 6 | | B Kavčič | 7$^7$ | 6 | | | | | | | | | | | |
| | F Dancevic | 4 | 2 | 2 | T Smyczek | 6$^5$ | 4 | | | | | | | | | | | |
| 2 | T Smyczek | 6 | 6 | | | | | | | | | | | | | | | |