| Singles | |
|---|---|
| 2017 Fairfield Challenger | |
| Champion |  Mackenzie McDonald |
| Runner-up | Bradley Klahn |
| Final score | 6–4, 6–2 |
Santiago Giraldo was the defending champion but chose not to defend his title.
Mackenzie McDonald won the title after defeating Bradley Klahn 6–4, 6–2 in the final.
Ernesto Escobedo (second round) Tennys Sandgren (quarterfinals) Bjorn Fratangelo (quarterfinals)
Maximilian Marterer (semifinals)
Cameron Norrie (withdrew) Stefan Kozlov (first round)
Ramkumar Ramanathan (first round)
Nikola Milojević (quarterfinals) Michael Mmoh (second round)| Semifinals | Final | ||||||||||||
| SE | Bradley Klahn | 6 | 6 | ||||||||||
| 4 | Maximilian Marterer | 1 | 3 | ||||||||||
| SE | Bradley Klahn | 4 | 2 | ||||||||||
| Mackenzie McDonald | 6 | 6 | |||||||||||
| Q |  Christopher O'Connell | 4 | 5 | ||||||||||
| Mackenzie McDonald | 6 | 7 | |||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | E Escobedo | 5 | 6 | 6 | |||||||||||||||||||||||
| WC | A Sarkissian | 7 | 0 | 2 | 1 | E Escobedo | 4 | 79 | 3 | ||||||||||||||||||
| SE | B Klahn | 1 | 6 | 6 | SE | B Klahn | 6 | 67 | 6 | ||||||||||||||||||
| SE | K King | 6 | 1 | 1 | SE | B Klahn | 4 | 6 | 6 | ||||||||||||||||||
 F Auger-Aliassime | 4 | 6 | 6 | 8 | N Milojević | 6 | 3 | 4 | |||||||||||||||||||
| Q |  J Šátral | 6 | 3 | 4 | F Auger-Aliassime | 2 | 4 | ||||||||||||||||||||
| B Schnur | 1 | 5 | 8 | N Milojević | 6 | 6 | |||||||||||||||||||||
| 8 | N Milojević | 6 | 7 | SE | B Klahn | 6 | 6 | ||||||||||||||||||||
| 4 | M Marterer | 6 | 77 | 4 | M Marterer | 1 | 3 | ||||||||||||||||||||
| B Klein | 4 | 62 | 4 | M Marterer | 6 | 6 | |||||||||||||||||||||
| Q |  R Roelofse | 4 | 4 | LL | S Bangoura | 3 | 2 | ||||||||||||||||||||
| LL | S Bangoura | 6 | 6 | 4 | M Marterer | 6 | 7 | ||||||||||||||||||||
| WC |  A Geller | 2 | 4 | Q | S Fanselow | 4 | 5 | ||||||||||||||||||||
| Q | Sebastian Fanselow | 6 | 6 | Q | S Fanselow | 77 | 77 | ||||||||||||||||||||
| WC | E King | 1 | 6 | 65 | 9 | M Mmoh | 62 | 65 | |||||||||||||||||||
| 9 | M Mmoh | 6 | 4 | 77 | |||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 7 | R Ramanathan | 4 | 6 | 4 | |||||||||||||||||||||||
| T Kamke | 6 | 4 | 6 | T Kamke | 6 | 3 | 4 | ||||||||||||||||||||
| D Kudla | 5 | 3 | Q | C O'Connell | 0 | 6 | 6 | ||||||||||||||||||||
| Q | C O'Connell | 7 | 6 | Q | C O'Connell | 77 | 5 | 6 | |||||||||||||||||||
| LL |  A González | 6 | 6 | 3 | B Fratangelo | 65 | 7 | 4 | |||||||||||||||||||
| J-P Smith | 1 | 4 | LL | A González | 65 | 65 | |||||||||||||||||||||
| LL | A Ward | 6 | 65 | 4 | 3 | B Fratangelo | 77 | 77 | |||||||||||||||||||
| 3 | B Fratangelo | 3 | 77 | 6 | Q | C O'Connell | 4 | 5 | |||||||||||||||||||
| 6 | S Kozlov | 4 | 7 | 1 | M McDonald | 6 | 7 | ||||||||||||||||||||
| M McDonald | 6 | 5 | 6 | M McDonald | 6 | 6 | |||||||||||||||||||||
| PR | F Dancevic | 4 | 4 |  D King | 3 | 1 | |||||||||||||||||||||
| D King | 6 | 6 | M McDonald | 77 | 6 | ||||||||||||||||||||||
| S Groth | 4 | 6 | 5 | 2 | T Sandgren | 63 | 2 | ||||||||||||||||||||
| N Rubin | 6 | 3 | 7 | N Rubin | 61 | 3 | |||||||||||||||||||||
| M Krueger | 3 | 77 | 65 | 2 | T Sandgren | 77 | 6 | ||||||||||||||||||||
| 2 | T Sandgren | 6 | 62 | 77 | |||||||||||||||||||||||
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