# 2017 Thindown Challenger Biella – Singles

Federico Gaio was the defending champion but lost in the second round to João Souza.
Filip Krajinović won the title after defeating Salvatore Caruso 6–3, 6–2 in the final.

## Seeds

* Marco Cecchinato (quarterfinals)
* Guillermo García López (second round)
* Leonardo Mayer (withdrew)
* Guido Andreozzi (first round, retired)
* Filip Krajinović (champion)
* João Souza (semifinals)
* Stefano Travaglia (quarterfinals)
* Roberto Carballés Baena (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 | Semifinals | Final | Final | Final | Final |
| 5 | Filip Krajinović | 6 | 7$^9$ | | | | | |
| 6 | João Souza | 4 | 6$^7$ | | | | | |
| 6 | João Souza | 4 | 6$^7$ | | 5 | Filip Krajinović | 6 | 6 |
| | | | | | | Salvatore Caruso | 3 | 2 |
| Q | Andrea Arnaboldi | 6 | 5 | 5 | | Salvatore Caruso | 3 | 2 |
| | Salvatore Caruso | 3 | 7 | 7 | | | | |

### 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 |
| 1 | M Cecchinato | 7 | 6 | | | | | | | | | | | | | | |
| Q | R Marcora | 5 | 4 | | 1 | M Cecchinato | 7 | 6 | | | | | | | | | |
| WC | Pietro Rondoni | 6 | 2 | 6 | WC | P Rondoni | 5 | 3 | | | | | | | | | |
| Q | I Gakhov | 4 | 6 | 3 | | | | | | 1 | M Cecchinato | 4 | 2 | | | | |
| | R Ramírez Hidalgo | 2 | 2 | | | | | | | 5 | F Krajinović | 6 | 6 | | | | |
| WC | M Donati | 6 | 6 | | WC | M Donati | 2 | 6$^1$ | | | | | | | | | |
| | D Gimeno Traver | 1 | 4 | | 5 | F Krajinović | 6 | 7$^7$ | | | | | | | | | |
| 5 | F Krajinović | 6 | 6 | | | | | | | | | | | 5 | F Krajinović | 6 | 7$^9$ |
| LL | T Brkić | 6 | 1 | 6 | | | | | | | | | | 6 | J Souza | 4 | 6$^7$ |
| | M Janvier | 4 | 6 | 3 | LL | T Brkić | 6$^5$ | 2 | | | | | | | | | |
| Alt | V Galović | 6$^3$ | 1 | | LL | M Ymer | 7$^7$ | 6 | | | | | | | | | |
| LL | M Ymer | 7$^7$ | 6 | | | | | | | LL | M Ymer | 0 | 2 | | | | |
| | F Gaio | 4 | 6 | 6 | | | | | | 6 | J Souza | 6 | 6 | | | | |
| | C Hemery | 6 | 2 | 4 | | F Gaio | 6 | 6$^9$ | 4 | | | | | | | | |
| | A Balázs | 4 | 4 | | 6 | J Souza | 2 | 7$^{11}$ | 6 | | | | | | | | |
| 6 | J Souza | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 7 | S Travaglia | 7$^7$ | 2 | 7 | | | | | | | | | | | | | | | |
| WC | A Pellegrino | 6$^5$ | 6 | 5 | 7 | S Travaglia | 7 | 6 | | | | | | | | | | | |
| | C Lestienne | 7 | 4 | 6 | | C Lestienne | 5 | 4 | | | | | | | | | | | |
| | L Giustino | 5 | 6 | 4 | | | | | | 7 | S Travaglia | 6 | 6$^5$ | 6$^3$ | | | | | |
| SE | M Viola | 4 | 3 | | | | | | | Q | A Arnaboldi | 4 | 7$^7$ | 7$^7$ | | | | | |
| Q | G Mager | 6 | 6 | | Q | G Mager | 4 | 4 | | | | | | | | | | | |
| Q | A Arnaboldi | 6$^3$ | 7$^7$ | 4 | Q | A Arnaboldi | 6 | 6 | | | | | | | | | | | |
| 4 | G Andreozzi | 7$^7$ | 6$^3$ | 3$^r$ | | | | | | | | | | | Q | A Arnaboldi | 6 | 5 | 5 |
| 8 | R Carballés Baena | 6 | 4 | 6 | | | | | | | | | | | | S Caruso | 3 | 7 | 7 |
| | S Napolitano | 2 | 6 | 4 | 8 | R Carballés Baena | 5 | 2 | | | | | | | | | | | |
| | F Coria | 6 | 6 | | | F Coria | 7 | 6 | | | | | | | | | | | |
| | S Robert | 3 | 4 | | | | | | | | F Coria | 3 | 7$^7$ | 3 | | | | | |
| | S Caruso | 7 | 6 | | | | | | | | S Caruso | 6 | 6$^3$ | 6 | | | | | |
| | Y Reuter | 5 | 3 | | | S Caruso | 1 | 6 | 6 | | | | | | | | | | |
| WC | L Sonego | 3 | 6 | 4 | 2 | G García López | 6 | 4 | 2 | | | | | | | | | | |
| 2 | G García López | 6 | 2 | 6 | | | | | | | | | | | | | | | |