# 2016 Astana Challenger Capital Cup – Singles

This was the first edition of the tournament.
Yoshihito Nishioka won the title after defeating Denis Istomin 6–4, 6–7$^{(4–7)}$, 7–6$^{(7–3)}$ in the final.

## Seeds

* Yoshihito Nishioka (champion)
* Denis Istomin (final)
* Alexander Kudryavtsev (second round)
* Aleksandr Nedovyesov (semifinals, retired)
* Nikola Milojević (quarterfinals, retired)
* Alexander Bublik (quarterfinals)
* Yuya Kibi (first round)
* Andrey Golubev (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 | Semifinals | Final | Final | Final | Final | Final |
| 1 | Yoshihito Nishioka | 6 | 2 | | | | | | |
| 4 | Aleksandr Nedovyesov | 4 | 1$^r$ | | | | | | |
| 4 | Aleksandr Nedovyesov | 4 | 1$^r$ | | 1 | Yoshihito Nishioka | 6 | 6$^4$ | 7$^7$ |
| | | | | | 2 | Denis Istomin | 4 | 7$^7$ | 6$^3$ |
| Q | Temur Ismailov | 2 | 7$^7$ | 3 | 2 | Denis Istomin | 4 | 7$^7$ | 6$^3$ |
| 2 | Denis Istomin | 6 | 6$^3$ | 6 | | | | | |

### Top half

| 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 | Y Nishioka | 6 | 6 | | | | | | | | | | | | | |
| | T Chen | 3 | 1 | 1 | Y Nishioka | 6 | 7$^{10}$ | | | | | | | | | |
| | S Mukund | 4 | 4 | | S Fayziev | 2 | 6$^8$ | | | | | | | | | |
| | S Fayziev | 6 | 6 | | | | | | 1 | Y Nishioka | 6 | 6 | | | | |
| | Alexandr Igoshin | 4 | 2 | | | | | | | D Popko | 2 | 4 | | | | |
| | A Pavić | 6 | 6 | | A Pavić | 6$^4$ | 6 | 3 | | | | | | | | |
| | D Popko | 6 | 6 | | D Popko | 7$^7$ | 3 | 6 | | | | | | | | |
| 7 | Yuya Kibi | 3 | 2 | | | | | | | | | | 1 | Y Nishioka | 6 | 2 |
| 4 | A Nedovyesov | 7$^7$ | 6 | | | | | | | | | | 4 | A Nedovyesov | 4 | 1$^r$ |
| | M İlhan | 6$^5$ | 1 | 4 | A Nedovyesov | 6 | 6 | | | | | | | | | |
| | Jeremy Jahn | 1 | 2 | | A Vatutin | 4 | 3 | | | | | | | | | |
| | A Vatutin | 6 | 6 | | | | | | 4 | A Nedovyesov | 6 | 6 | | | | |
| WC | D Yevseyev | 4 | 3 | | | | | | | P Gunneswaran | 2 | 3 | | | | |
| | S-w Kwon | 6 | 6 | | S-w Kwon | 3 | 6 | 1 | | | | | | | | |
| | P Gunneswaran | 6 | 6 | | P Gunneswaran | 6 | 4 | 6 | | | | | | | | |
| 8 | A Golubev | 4 | 2 | | | | | | | | | | | | | |

### 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 | Semifinals |
| 6 | A Bublik | 6 | 6 | | | | | | | | | | | | | | | |
| Q | S Betov | 4 | 4 | | 6 | A Bublik | 3 | 7$^7$ | 6 | | | | | | | | | |
| WC | J Karimov | 1 | 3 | | | D Masur | 6 | 6$^3$ | 2 | | | | | | | | | |
| | D Masur | 6 | 6 | | | | | | | 6 | A Bublik | 6$^5$ | 4 | | | | | |
| WC | T Khabibulin | 2 | 3 | | | | | | | Q | T Ismailov | 7$^7$ | 6 | | | | | |
| Q | T Ismailov | 6 | 6 | | Q | T Ismailov | 6 | 4 | 6 | | | | | | | | | |
| Q | D Molchanov | 4 | 2 | | 3 | A Kudryavtsev | 1 | 6 | 4 | | | | | | | | | |
| 3 | A Kudryavtsev | 6 | 6 | | | | | | | | | | | Q | T Ismailov | 2 | 7$^7$ | 3 |
| 5 | N Milojević | 7$^7$ | 6 | | | | | | | | | | | 2 | D Istomin | 6 | 6$^3$ | 6 |
| | V Ivanov | 6$^2$ | 1 | | 5 | N Milojević | 6$^{11}$ | 7$^9$ | 6 | | | | | | | | | |
| WC | Sagadat Ayap | 3 | 3 | | Q | Y-s Chung | 7$^{13}$ | 6$^7$ | 3 | | | | | | | | | |
| Q | Y-s Chung | 6 | 6 | | | | | | | 5 | N Milojević | 2 | 0$^r$ | | | | | |
| | C İlkel | 6 | 6$^5$ | 7 | | | | | | 2 | D Istomin | 6 | 0 | | | | | |
| | E Karlovskiy | 0 | 7$^7$ | 5 | | C İlkel | 4 | 2 | | | | | | | | | | |
| | Robin Staněk | 0 | 7$^7$ | 4 | 2 | D Istomin | 6 | 6 | | | | | | | | | | |
| 2 | D Istomin | 6 | 6$^3$ | 6 | | | | | | | | | | | | | | |