# 2017 UniCredit Czech Open – Singles

Mikhail Kukushkin was the defending champion but lost in the first round to Nicolás Jarry.
Jiří Veselý won the title after defeating Federico Delbonis 5–7, 6–1, 7–5 in the final.

## Seeds

* Martin Kližan (second round)
* Jiří Veselý (champion)
* Nikoloz Basilashvili (first round)
* Mikhail Kukushkin (first round)
* Nicolás Kicker (quarterfinals)
* Radu Albot (quarterfinals)
* Norbert Gombos (first round)
* Adam Pavlásek (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 | Final |
| Q | Markus Eriksson | 5 | 5 | | | | | |
| | Federico Delbonis | 7 | 7 | | | | | |
| | Federico Delbonis | 7 | 7 | | Federico Delbonis | 7 | 1 | 5 |
| | | | | 2 | Jiří Veselý | 5 | 6 | 7 |
| | Tennys Sandgren | 2 | 2 | 2 | Jiří Veselý | 5 | 6 | 7 |
| 2 | Jiří Veselý | 6 | 6 | | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1/WC | M Kližan | 7 | 6 | | | | | | | | | | | | | |
| WC | P Rikl | 5 | 2 | | 1/WC | M Kližan | 4 | 1 | | | | | | | | |
| Q | M Eriksson | 7$^7$ | 6 | | Q | M Eriksson | 6 | 6 | | | | | | | | |
| | G Melzer | 6$^2$ | 4 | | | | | | Q | M Eriksson | 7 | 7 | | | | |
| Alt | L Giustino | 5 | 7$^7$ | 3 | | | | | 6 | R Albot | 5 | 5 | | | | |
| | J Souza | 7 | 6$^1$ | 6 | | J Souza | 3 | 3 | | | | | | | | |
| | F Bagnis | 6$^3$ | 6 | 2 | 6 | R Albot | 6 | 6 | | | | | | | | |
| 6 | R Albot | 7$^7$ | 2 | 6 | | | | | | | | | Q | M Eriksson | 5 | 5 |
| 4 | M Kukushkin | 5 | 2 | | | | | | | | | | | F Delbonis | 7 | 7 |
| Alt | N Jarry | 7 | 6 | | Alt | N Jarry | 4 | 5 | | | | | | | | |
| | F Delbonis | 6 | 6 | | | F Delbonis | 6 | 7 | | | | | | | | |
| | E Donskoy | 3 | 1 | | | | | | | F Delbonis | 6 | 6 | | | | |
| WC | T Robredo | 3 | 6 | 7$^7$ | | | | | WC | T Robredo | 3 | 4 | | | | |
| Alt | J Janowicz | 6 | 4 | 6$^4$ | WC | T Robredo | w/o | | | | | | | | | |
| WC | E Gulbis | 6 | 6 | | WC | E Gulbis | | | | | | | | | | |
| 7 | N Gombos | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 5 | N Kicker | 7$^9$ | 6 | | | | | | | | | | | | | | | |
| | G Andreozzi | 6$^7$ | 2 | | 5 | N Kicker | 6 | 2 | 6 | | | | | | | | | |
| | R Carballés Baena | 4 | 6 | 6 | | R Carballés Baena | 4 | 6 | 2 | | | | | | | | | |
| | Í Cervantes | 6 | 4 | 4 | | | | | | 5 | N Kicker | 6 | 2 | 4 | | | | |
| Q | K Krawietz | 2 | 7$^7$ | 6 | | | | | | | T Sandgren | 2 | 6 | 6 | | | | |
| | A Martin | 6 | 6$^4$ | 3 | Q | K Krawietz | 2 | 1 | | | | | | | | | | |
| | T Sandgren | 6 | 6 | | | T Sandgren | 6 | 6 | | | | | | | | | | |
| 3 | N Basilashvili | 2 | 4 | | | | | | | | | | | | | T Sandgren | 2 | 2 |
| 8 | A Pavlásek | 6 | 2 | 6 | | | | | | | | | | | 2 | J Veselý | 6 | 6 |
| Q | Petr Michnev | 4 | 6 | 2 | 8 | A Pavlásek | 7 | 1 | 6$^4$ | | | | | | | | | |
| Q | M Janvier | 3 | 3 | | | U Ignatik | 5 | 6 | 7$^7$ | | | | | | | | | |
| | U Ignatik | 6 | 6 | | | | | | | | U Ignatik | 6$^3$ | 1 | | | | | |
| | M Fucsovics | 2 | 3 | | | | | | | 2 | J Veselý | 7$^7$ | 6 | | | | | |
| Alt | M Arévalo | 6 | 6 | | Alt | M Arévalo | 2 | 4 | | | | | | | | | | |
| Alt | D Popko | 4 | 0 | | 2 | J Veselý | 6 | 6 | | | | | | | | | | |
| 2 | J Veselý | 6 | 6 | | | | | | | | | | | | | | | |