| Singles | |
|---|---|
| 2018 Hall of Fame Tennis Championships | |
| Champion |  Steve Johnson |
| Runner-up |  Ramkumar Ramanathan |
| Score | 7–5, 3–6, 6–2 |
| Draw | 28 (4 Q / 3 WC ) |
| Seeds | 8 |
John Isner was the defending champion, but withdrew before the tournament began.
Steve Johnson won his fourth career ATP World Tour title, defeating Ramkumar Ramanathan in the final, 7–5, 3–6, 6–2. Ramanathan was making his first appearance in a World Tour final.
The top four seeds receive a bye into the second round.
Adrian Mannarino (quarterfinals)
Mischa Zverev (second round) Steve Johnson (champion)
Matthew Ebden (second round) Ryan Harrison (first round, retired)
Gilles Müller (second round) Alex de Minaur (first round) Denis Kudla (second round)| Semifinals | Final | ||||||||||||
 Marcel Granollers | 3 | 3 | |||||||||||
| 3 | Steve Johnson | 6 | 6 | ||||||||||
| 3 | Steve Johnson | 7 | 3 | 6 | |||||||||
| Ramkumar Ramanathan | 5 | 6 | 2 | ||||||||||
| Tim Smyczek | 4 | 5 | |||||||||||
| Ramkumar Ramanathan | 6 | 7 | |||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | A Mannarino | 6 | 77 | ||||||||||||||||||||||||
| PR | J Duckworth | 4 | 3 | J Thompson | 2 | 64 | |||||||||||||||||||||
| J Thompson | 6 | 6 | 1 | A Mannarino | 3 | 1 | |||||||||||||||||||||
| Q | JC Aragone | 66 | 0 | M Granollers | 6 | 6 | |||||||||||||||||||||
| M Granollers | 78 | 6 | M Granollers | 7 | 77 | ||||||||||||||||||||||
 M Baghdatis | 65 | 3 | 6 | G Müller | 5 | 64 | |||||||||||||||||||||
| 6 | G Müller | 77 | 6 | M Granollers | 3 | 3 | |||||||||||||||||||||
| 3 | S Johnson | 6 | 6 | ||||||||||||||||||||||||
| 3 | S Johnson | 6 | 6 | ||||||||||||||||||||||||
| WC | C Harrison | 6 | 4 | 7 | WC | C Harrison | 3 | 1 | |||||||||||||||||||
| Q | A Bolt | 3 | 6 | 5 | 3 | S Johnson | 6 | 6 | |||||||||||||||||||
| Q | B Tomic | 3 | 6 | 2 |  D Sela | 2 | 3 | ||||||||||||||||||||
| D Sela | 6 | 1 | 6 | D Sela | 78 | 64 | 6 | ||||||||||||||||||||
 I Karlović | 62 | 77 | 7 | I Karlović | 66 | 77 | 2 | ||||||||||||||||||||
| 7 | A de Minaur | 77 | 63 | 5 | |||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5 | R Harrison | 2 | 0r | ||||||||||||||||||||||||
| N Mahut | 6 | 2 | N Mahut | 4 | 4 | ||||||||||||||||||||||
 S Stakhovsky | 4 | 6 | 3 | WC |  J Jung | 6 | 6 | ||||||||||||||||||||
| WC | J Jung | 6 | 3 | 6 | WC | J Jung | 1 | 7 | 4 | ||||||||||||||||||
| B Fratangelo | 3 | 6 | 4 | T Smyczek | 6 | 5 | 6 | ||||||||||||||||||||
| T Smyczek | 6 | 2 | 6 | T Smyczek | 6 | 6 | |||||||||||||||||||||
| 4 | M Ebden | 3 | 3 | ||||||||||||||||||||||||
| T Smyczek | 4 | 5 | |||||||||||||||||||||||||
| 8 | D Kudla | 6 | 6 | R Ramanathan | 6 | 7 | |||||||||||||||||||||
 R Bemelmans | 3 | 4 | 8 | D Kudla | 6 | 3 | 4 | ||||||||||||||||||||
| R Ramanathan | 6 | 6 | R Ramanathan | 4 | 6 | 6 | |||||||||||||||||||||
| Q |  V Estrella Burgos | 4 | 1 | R Ramanathan | 7 | 6 | |||||||||||||||||||||
| WC | D Young | 65 | 1 |  V Pospisil | 5 | 2 | |||||||||||||||||||||
| V Pospisil | 77 | 6 | V Pospisil | 4 | 6 | 7 | |||||||||||||||||||||
| 2 | M Zverev | 6 | 3 | 5 | |||||||||||||||||||||||
Marcelo Arévalo (first round) Matthias Bachinger (qualifying competition) Prajnesh Gunneswaran (first round)
Mohamed Safwat (first round) Bernard Tomic (qualified) Víctor Estrella Burgos (qualified) Evan King (first round) Alex Bolt (qualified)| First round | Qualifying competition | ||||||||||||
| 1 | Marcelo Arévalo | 1 | 77 | 5 | |||||||||
| John-Patrick Smith | 6 | 62 | 7 | ||||||||||
| John-Patrick Smith | 6 | 5 | 5 | ||||||||||
| 6 | Víctor Estrella Burgos | 3 | 7 | 7 | |||||||||
| Dominik Köpfer | 2 | 3 | |||||||||||
| 6 | Víctor Estrella Burgos | 6 | 6 | ||||||||||
| First round | Qualifying competition | ||||||||||||
| 2 | Matthias Bachinger | 5 | 7 | 6 | |||||||||
| WC | William Blumberg | 7 | 5 | 2 | |||||||||
| 2 | Matthias Bachinger | 62 | 78 | 0 | |||||||||
| JC Aragone | 77 | 66 | 6 | ||||||||||
| JC Aragone | 6 | 6 | |||||||||||
| 7 | Evan King | 3 | 2 | ||||||||||
| First round | Qualifying competition | ||||||||||||
| 3 | Prajnesh Gunneswaran | 4 | 7 | 4 | |||||||||
 Alessandro Bega | 6 | 5 | 6 | ||||||||||
| Alessandro Bega | 4 | 3 | |||||||||||
| 5 | Bernard Tomic | 6 | 6 | ||||||||||
| Austin Krajicek | 63 | 4 | |||||||||||
| 5 | Bernard Tomic | 77 | 6 | ||||||||||
| First round | Qualifying competition | ||||||||||||
| 4 | Mohamed Safwat | 3 | 3 | ||||||||||
| WC | Alex Rybakov | 6 | 6 | ||||||||||
| WC | Alex Rybakov | 3 | 6 | 3 | |||||||||
| 8 | Alex Bolt | 6 | 3 | 6 | |||||||||
| Frank Dancevic | 3 | 4 | |||||||||||
| 8 | Alex Bolt | 6 | 6 | ||||||||||
Kei Nishikori was the defending champion and successfully defended his title, defeating Ivo Karlović in the final, 6–4, 7–6(7–0).
Novak Djokovic defeated Rafael Nadal in the final, 6–3, 6–3 to win the men's singles tennis title at the 2014 Miami Open. He did not lose a single set in the entire tournament. Djokovic completed his second Sunshine Double with the win.
Feliciano López was the defending champion and successfully defended the title, defeating Richard Gasquet in the final, 6–3, 6–7(5–7), 7–5.
Ivo Karlović was the defending champion, but lost in the final to Bernard Tomic, 6–7(5–7), 6–3, 6–7(4–7).
Lleyton Hewitt was the defending champion, but chose to participate in the Davis Cup quarterfinals instead.
Rajeev Ram won the title, defeating Ivo Karlović in the final, 7–6(7–5), 5–7, 7–6(7–2).
Bernard Tomic was the last edition champion, and he successfully defended his title by defeating Adrian Mannarino in the final, 6–1, 3–6, 6–2.
Víctor Estrella Burgos was the defending champion and successfully defended his title, defeating Thomaz Bellucci in the final, 4–6, 7–6(7–5), 6–2.
Víctor Estrella Burgos was the two-time defending champion and successfully defended his title, defeating Paolo Lorenzi in the final, 6–7(2–7), 7–5, 7–6(8–6).
Kei Nishikori was the four-time defending champion, but chose to compete in Buenos Aires instead.
Pablo Cuevas was the defending champion, but lost in the first round to Arthur De Greef.
Lu Yen-hsun 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.
Víctor Estrella Burgos was the three-time defending champion and the tournament's only champion to date, but lost in the second round to Gerald Melzer.
Gilles Müller was the defending champion, but lost in the second round to Matthew Ebden.
John Isner was the defending champion and successfully defended his title, defeating Ryan Harrison in a rematch of the 2017 final, 5–7, 6–3, 6–4.
Alexander Zverev was the defending champion and successfully defended his title, defeating Alex de Minaur in the final, 6–2, 6–4.
Frances Tiafoe was the defending champion, but lost in the first round to Dan Evans.
Steve Johnson was the defending champion, but lost in the first round to Christopher Eubanks.
Kevin Anderson defeated Jenson Brooksby in the final, 7–6(10–8), 6–4, to win the singles tennis title at the 2021 Hall of Fame Open. It was played on outdoor grass courts and was part of the 250 series of the 2021 ATP Tour. It took place at the International Tennis Hall of Fame in Newport, Rhode Island, United States from 12 to 18 July 2021.
Alex de Minaur defeated Jenson Brooksby in the final, 6–3, 6–3 to win the singles title at the 2022 Atlanta Open. It was de Minaur's second Atlanta title, the first being in 2019.