# 2018 Canberra Challenger – Singles

Dudi Sela was the defending champion but lost in the first round to Hugo Grenier.
Andreas Seppi won the title after defeating Márton Fucsovics 5–7, 6–4, 6–3 in the final.

## Seeds

* Dudi Sela (first round)
* Florian Mayer (quarterfinals)
* Guillermo García López (quarterfinals)
* Mikhail Kukushkin (first round, retired)
* Víctor Estrella Burgos (semifinals)
* Márton Fucsovics (final)
* Andreas Seppi (champion)
* Laslo Đere (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 |
| 6 | Márton Fucsovics | 6 | 4 | 6 | | | | | |
| | Maxime Janvier | 3 | 6 | 2 | | | | | |
| | Maxime Janvier | 3 | 6 | 2 | 6 | Márton Fucsovics | 7 | 4 | 3 |
| | | | | | 7 | Andreas Seppi | 5 | 6 | 6 |
| 7 | Andreas Seppi | 6 | 6 | | 7 | Andreas Seppi | 5 | 6 | 6 |
| 5 | Víctor Estrella Burgos | 2 | 2 | | | | | | |

### 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 | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | D Sela | 6$^6$ | 1 | | | | | | | | | | | | | | | |
| | H Grenier | 7$^8$ | 6 | | | H Grenier | 7 | 3 | 7$^7$ | | | | | | | | | |
| | A Harris | 6 | 6 | | | A Harris | 5 | 6 | 6$^3$ | | | | | | | | | |
| WC | Gavin van Peperzeel | 2 | 1 | | | | | | | | H Grenier | 4 | 4 | | | | | |
| Q | H Bourchier | 2 | 4 | | | | | | | 6 | M Fucsovics | 6 | 6 | | | | | |
| | Z Li | 6 | 6 | | | Z Li | 1 | 2 | | | | | | | | | | |
| | M Jaziri | 2 | 1$^r$ | | 6 | M Fucsovics | 6 | 6 | | | | | | | | | | |
| 6 | M Fucsovics | 6 | 5 | | | | | | | | | | | 6 | M Fucsovics | 6 | 4 | 6 |
| 4 | M Kukushkin | 6$^2$ | 0$^r$ | | | | | | | | | | | | M Janvier | 3 | 6 | 2 |
| Q | J Beale | 7$^7$ | 0 | | Q | J Beale | 7 | 3 | 4 | | | | | | | | | |
| | N Kicker | 4 | 5 | | | E Benchetrit | 5 | 6 | 6 | | | | | | | | | |
| | E Benchetrit | 6 | 7 | | | | | | | | E Benchetrit | 4 | 2 | | | | | |
| | N Jarry | 7$^7$ | 6 | | | | | | | | M Janvier | 6 | 6 | | | | | |
| | C Moutet | 6$^4$ | 3 | | | N Jarry | 2 | 6 | 6$^5$ | | | | | | | | | |
| | M Janvier | 3 | 7 | 6 | | M Janvier | 6 | 2 | 7$^7$ | | | | | | | | | |
| 8 | L Đere | 6 | 5 | 2 | | | | | | | | | | | | | | |

### 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 | A Seppi | 3 | 6 | 7$^9$ | | | | | | | | | | | | | |
| | M Marterer | 6 | 3 | 6$^7$ | 7 | A Seppi | 6 | 6 | | | | | | | | | |
| Q | N Pasha | 6 | 2 | 7$^7$ | Q | N Pasha | 2 | 4 | | | | | | | | | |
| Q | T Fancutt | 4 | 6 | 6$^2$ | | | | | 7 | A Seppi | 6 | 6 | | | | | |
| WC | Alexander Crnokrak | 1 | 2 | | | | | | 3 | G García López | 3 | 4 | | | | | |
| | G Blancaneaux | 6 | 6 | | | G Blancaneaux | 5 | 4 | | | | | | | | | |
| | S Bangoura | 3 | 4 | | 3 | G García López | 7 | 6 | | | | | | | | | |
| 3 | G García López | 6 | 6 | | | | | | | | | | | 7 | A Seppi | 6 | 6 |
| 5 | V Estrella Burgos | 6 | 6 | | | | | | | | | | | 5 | V Estrella Burgos | 2 | 2 |
| | L Saville | 3 | 3 | | 5 | V Estrella Burgos | w/o | | | | | | | | | | |
| | T Pütz | 5 | 7$^7$ | 6 | | T Pütz | | | | | | | | | | | |
| | S-w Kwon | 7 | 6$^1$ | 4 | | | | | 5 | V Estrella Burgos | 7$^7$ | 0 | 6 | | | | |
| WC | D Propoggia | 6 | 3 | 1 | | | | | 2 | F Mayer | 6$^4$ | 6 | 3 | | | | |
| WC | B Mitchell | 3 | 6 | 6 | WC | B Mitchell | 4 | 6$^6$ | | | | | | | | | |
| | Yo Watanuki | 7 | 1 | 4 | 2 | F Mayer | 6 | 7$^8$ | | | | | | | | | |
| 2 | F Mayer | 5 | 6 | 6 | | | | | | | | | | | | | |