| Singles | |
|---|---|
| 2017 Las Vegas Challenger | |
| Champion |  Stefan Kozlov |
| Runner-up |  Liam Broady |
| Score | 3–6, 7–5, 6–4 |
Sam Groth was the defending champion but retired in the second round against Jan Choinski. [1]
Stefan Kozlov won the title after defeating Liam Broady 3–6, 7–5, 6–4 in the final.
Tennys Sandgren (semifinals) Cameron Norrie (second round) Bjorn Fratangelo (first round) Stefan Kozlov (champion)
Nikola Milojević (first round) Michael Mmoh (second round)
Sam Groth (second round, retired) Reilly Opelka (quarterfinals)| Semifinals | Final | ||||||||||||
| 1 | Tennys Sandgren | 3 | 66 | ||||||||||
| 4 | Stefan Kozlov | 6 | 78 | ||||||||||
| 4 | Stefan Kozlov | 3 | 7 | 6 | |||||||||
| Liam Broady | 6 | 5 | 4 | ||||||||||
| Evan King | 4 | 5 | |||||||||||
| Liam Broady | 6 | 7 | |||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | T Sandgren | 6 | 6 | ||||||||||||||||||||||||
| Q |  B Lock | 2 | 4 | 1 | T Sandgren | 7 | 6 | ||||||||||||||||||||
 L Miedler | 713 | 4 | 7 | L Miedler | 5 | 4 | |||||||||||||||||||||
| Q |  Karue Sell | 611 | 6 | 5 | 1 | T Sandgren | 6 | 6 | |||||||||||||||||||
| WC |  A Cozbinov | 6 | 4 | 4 | Q |  J Choinski | 1 | 0 | |||||||||||||||||||
| Q | J Choinski | 4 | 6 | 6 | Q | J Choinski | 2 | ||||||||||||||||||||
| WC |  M Torpegaard | 3 | 4 | 7 | S Groth | 1r | |||||||||||||||||||||
| 7 | S Groth | 6 | 6 | 1 | T Sandgren | 3 | 66 | ||||||||||||||||||||
| 4 | S Kozlov | 7 | 6 | 4 | S Kozlov | 6 | 78 | ||||||||||||||||||||
| WC | JC Aragone | 5 | 3 | 4 | S Kozlov | 6 | 6 | ||||||||||||||||||||
| A Sarkissian | 6 | 3 | 2 | D Köpfer | 4 | 1 | |||||||||||||||||||||
| D Köpfer | 2 | 6 | 6 | 4 | S Kozlov | 6 | 6 | ||||||||||||||||||||
| K King | 6 | 6 | K King | 2 | 3 | ||||||||||||||||||||||
| WC |  Ruben Alberts | 2 | 3 | K King | 4 | 6 | 6 | ||||||||||||||||||||
| M Giron | 6 | 77 | M Giron | 6 | 3 | 4 | |||||||||||||||||||||
| 5 | N Milojević | 4 | 61 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 6 | M Mmoh | 6 | 6 | ||||||||||||||||||||||||
 J Šátral | 4 | 1 | 6 | M Mmoh | 3 | 6 | 3 | ||||||||||||||||||||
| PR | B Klahn | 3 | 7 | 6 | PR | B Klahn | 6 | 3 | 6 | ||||||||||||||||||
| SE | C O'Connell | 6 | 5 | 3 | PR | B Klahn | 67 | 66 | |||||||||||||||||||
| E King | 64 | 77 | 6 | E King | 79 | 78 | |||||||||||||||||||||
| D Novikov | 77 | 64 | 4 | E King | 62 | 6 | 7 | ||||||||||||||||||||
| B Klein | 77 | 6 | B Klein | 77 | 3 | 5 | |||||||||||||||||||||
| 3 | B Fratangelo | 62 | 4 | E King | 4 | 5 | |||||||||||||||||||||
| 8 | R Opelka | 77 | 6 | L Broady | 6 | 7 | |||||||||||||||||||||
| J Clarke | 62 | 4 | 8 | R Opelka | 77 | 6 | |||||||||||||||||||||
| LL | T Garanganga | 2 | 2 | Q | J Hiltzik | 65 | 4 | ||||||||||||||||||||
| Q | Jared Hiltzik | 6 | 6 | 8 | R Opelka | 77 | 65 | 4 | |||||||||||||||||||
| L Broady | 77 | 6 | L Broady | 62 | 77 | 6 | |||||||||||||||||||||
| LL | A Rybakov | 65 | 3 | L Broady | 77 | 6 | |||||||||||||||||||||
 R Ortega Olmedo | 4 | 3 | 2 | C Norrie | 65 | 4 | |||||||||||||||||||||
| 2 | C Norrie | 6 | 6 | ||||||||||||||||||||||||
Thiemo de Bakker was the defending champion but chose not to defend his title.
Chase Buchanan and Tennys Sandgren were the defending champions but only Sandgren chose to defend his title, partnering Austin Krajicek. Sandgren lost in the quarterfinals to Brian Baker and Sam Groth.
Johan Brunström and Frederik Nielsen were the defending champions but chose not to defend their title.
Henri Laaksonen was the defending champion and successfully defended his title.
Mikael Torpegaard was the defending champion but lost in the first round to Taylor Fritz.
Dan Evans was the defending champion, but decided not to participate this year.
Malek Jaziri was the defending champion but chose not to defend his title.
Michael Berrer was the defending champion but chose not to defend his title.
Bjorn Fratangelo was the defending champion but chose not to defend his title.
Ivo Karlović was the defending champion, but lost in the quarterfinals to Peter Gojowczyk.
Frances Tiafoe was the defending champion but chose not to defend his title.
Santiago Giraldo was the defending champion but chose not to defend his title.
Reilly Opelka was the defending champion but lost in the first round to Tennys Sandgren.
Steve Johnson was the defending champion and successfully defended his title, defeating Tennys Sandgren in the final, 7–6(7–2), 2–6, 6–4.
J. J. Wolf was the defending champion but lost in the semifinals to Stefan Kozlov.
Vasek Pospisil was the defending champion but chose not to defend his title.
Stefan Kozlov was the defending champion but lost in the second round to Dominic Stricker.
Stefan Kozlov and Peter Polansky were the defending champions but withdrew from the tournament due to a Kozlov injury.
Federico Coria was the defending champion but chose not to defend his title.
J. J. Wolf was the defending champion but chose not to defend his title.