| Men's singles | |
|---|---|
| 2017 Kentucky Bank Tennis Championships | |
| Champion |  Michael Mmoh |
| Runner-up |  John Millman |
| Final score | 4–6, 7–6(7–3), 6–3 |
Ernesto Escobedo was the defending champion but chose not to defend his title.
Michael Mmoh won the title after defeating John Millman 4–6, 7–6(7–3), 6–3 in the final.
Alexander Bublik (second round) Denis Kudla (quarterfinals) John Millman (final) Michael Mmoh (champion)
James McGee (second round) John-Patrick Smith (second round) Andrew Whittington (first round)
Blaž Rola (second round)| Semifinals | Final | ||||||||||||
| SE |  Cameron Norrie | 1 | 1 | ||||||||||
| 3 | John Millman | 6 | 6 | ||||||||||
| 3 | John Millman | 6 | 63 | 3 | |||||||||
| 4 | Michael Mmoh | 4 | 77 | 6 | |||||||||
| 4 | Michael Mmoh | 77 | 1 | 6 | |||||||||
| Raymond Sarmiento | 64 | 6 | 2 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | A Bublik | 6 | 6 | ||||||||||||||||||||||||
| WC | Mi Redlicki | 3 | 4 | 1 | A Bublik | 4 | 7 | 0 | |||||||||||||||||||
 D Köpfer | 2 | 6 | 6 | D Köpfer | 6 | 5 | 6 | ||||||||||||||||||||
| E Corrie | 6 | 1 | 2 | D Köpfer | 3 | 2 | |||||||||||||||||||||
| PR |  Tom Jomby | 4 | 2 | SE | C Norrie | 6 | 6 | ||||||||||||||||||||
| Jared Hiltzik | 6 | 6 | J Hiltzik | 4 | 3 | ||||||||||||||||||||||
| SE | C Norrie | 4 | 77 | 6 | SE | C Norrie | 6 | 6 | |||||||||||||||||||
| 7 | A Whittington | 6 | 65 | 2 | SE | C Norrie | 1 | 1 | |||||||||||||||||||
| 3 | J Millman | 7 | 6 | 3 | J Millman | 6 | 6 | ||||||||||||||||||||
| Q | JC Aragone | 5 | 2 | 3 | J Millman | 6 | 6 | ||||||||||||||||||||
| M Giron | 61 | 0 |  L Harris | 1 | 1 | ||||||||||||||||||||||
| L Harris | 77 | 6 | 3 | J Millman | 4 | 78 | 6 | ||||||||||||||||||||
| M Purcell | 6 | 7 | M Purcell | 6 | 66 | 2 | |||||||||||||||||||||
| Q | J Witten | 4 | 5 | M Purcell | 6 | 4 | 6 | ||||||||||||||||||||
| LL | Mark Verryth | 4 | 2 | 8 | B Rola | 1 | 6 | 3 | |||||||||||||||||||
| 8 | B Rola | 6 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5 | J McGee | 6 | 2 | 78 | |||||||||||||||||||||||
| Q |  C Rungkat | 1 | 6 | 66 | 5 | J McGee | 6 | 3 | 4 | ||||||||||||||||||
| D Nguyen | 1 | 7 | 6 | D Nguyen | 3 | 6 | 6 | ||||||||||||||||||||
 J Statham | 6 | 5 | 4 | D Nguyen | 5 | 1 | |||||||||||||||||||||
| Q | Ryan Haviland | 6 | 6 | 4 | M Mmoh | 7 | 6 | ||||||||||||||||||||
| LL | Trey Yates | 3 | 0 | Q | R Haviland | 4 | 4 | ||||||||||||||||||||
| L Saville | 2 | 5 | 4 | M Mmoh | 6 | 6 | |||||||||||||||||||||
| 4 | M Mmoh | 6 | 7 | 4 | M Mmoh | 77 | 1 | 6 | |||||||||||||||||||
| 6 | J-P Smith | 7 | 4 | 6 | R Sarmiento | 64 | 6 | 2 | |||||||||||||||||||
| WC | William Bushamuka | 5 | 6 | 2 | 6 | J-P Smith | 6 | 1 | 4 | ||||||||||||||||||
| WC | E Quigley | 62 | 2 | R Sarmiento | 4 | 6 | 6 | ||||||||||||||||||||
| R Sarmiento | 77 | 6 | R Sarmiento | 6 | 6 | ||||||||||||||||||||||
| WC | Ma Redlicki | 6 | 3 | 4 | 2 | D Kudla | 1 | 3 | |||||||||||||||||||
| PR | K King | 3 | 6 | 6 | PR | K King | 5 | 77 | 1 | ||||||||||||||||||
| A Bolt | 6 | 4 | 2 | 2 | D Kudla | 7 | 65 | 6 | |||||||||||||||||||
| 2 | D Kudla | 4 | 6 | 6 | |||||||||||||||||||||||
Nick Kyrgios was the defending champion. However, he did not defend the title after turning 18 and joining the ATP.
Alexander Zverev won the title, defeating Stefan Kozlov in the final, 6–3, 6–0.
Three-time defending champion Kei Nishikori successfully defended his title, defeating Taylor Fritz in the final, 6–4, 6–4 to win the singles title at the 2016 Memphis Open. Notably, this was only Fritz' third career event on the ATP Tour.
Go Soeda was the defending champion, but chose not to defend his title.
Tim Smyczek was the defending champion but lost in the semifinals to Michael Mmoh.
Novak Djokovic was the four-time defending champion, but withdrew with an elbow injury before the tournament began.
Roberto Bautista Agut was the defending champion, but withdrew due to a stomach virus.
Yoshihito Nishioka was the defending champion but chose not to defend his title.
Roger Federer was the defending champion, but lost in the second round to Thanasi Kokkinakis.
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.
Feliciano López was the defending champion, but lost in the quarterfinals to Nick Kyrgios.
Novak Djokovic defeated Roger Federer in the final, 6–4, 6–4, to win the men's singles title at the 2018 Cincinnati Masters. With the win, he became the first player to complete the career Golden Masters in singles.
Ante Pavić was the defending champion but chose not to defend his title.
Cameron Norrie was the defending champion but chose not to defend his title.
Juan Martín del Potro was the two-time defending champion but chose not to defend his title.
James Duckworth was the defending champion but chose not to defend his title.
Mikael Torpegaard was the defending champion but lost in the quarterfinals to Roberto Quiroz.
Michael Mmoh was the defending champion but lost in the second round to Brandon Nakashima.
Daniil Medvedev was the defending champion, but chose not to defend his title.
Bradley Klahn was the defending champion but lost in the third round to Michael Mmoh.
John Millman was the defending champion, but lost in the quarterfinals to James Duckworth.