| Singles | |
|---|---|
| 2017 Stockton ATP Challenger | |
| Champion |  Cameron Norrie |
| Runner-up |  Darian King |
| Final score | 6–1, 6–3 |
Frances Tiafoe was the defending champion but chose not to defend his title.
Cameron Norrie won the title after defeating Darian King 6–1, 6–3 in the final.
Ruben Bemelmans (first round)
Tennys Sandgren (quarterfinals) Michael Mmoh (semifinals) Stefan Kozlov (quarterfinals)
Ramkumar Ramanathan (first round) Darian King (final)
Félix Auger-Aliassime (first round) Cameron Norrie (champion)| Semifinals | Final | ||||||||||||
| Tim Smyczek | 1 | 4 | |||||||||||
| 6 | Darian King | 6 | 6 | ||||||||||
| 6 | Darian King | 1 | 3 | ||||||||||
| 8 | Cameron Norrie | 6 | 6 | ||||||||||
| 3 | Michael Mmoh | 5 | 2 | ||||||||||
| 8 | Cameron Norrie | 7 | 6 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | R Bemelmans | 5 | 3 | ||||||||||||||||||||||||
 E Ymer | 7 | 6 | E Ymer | 3 | 710 | 6 | |||||||||||||||||||||
| PR | F Dancevic | 6 | 6 | PR | F Dancevic | 6 | 68 | 4 | |||||||||||||||||||
| Q | S Bangoura | 4 | 0 | E Ymer | 4 | 4 | |||||||||||||||||||||
| Q |  F Nielsen | 2 | 5 | T Smyczek | 6 | 6 | |||||||||||||||||||||
| T Smyczek | 6 | 7 | T Smyczek | 2 | 6 | 6 | |||||||||||||||||||||
| C Harrison | 6 | 6 | C Harrison | 6 | 3 | 4 | |||||||||||||||||||||
| 5 | R Ramanathan | 1 | 2 | T Smyczek | 1 | 4 | |||||||||||||||||||||
| 4/Alt | S Kozlov | 6 | 6 | 6 | D King | 6 | 6 | ||||||||||||||||||||
| B Schnur | 3 | 2 | 4/Alt | S Kozlov | 6 | 6 | |||||||||||||||||||||
| WC | D Kudla | 6 | 6 | WC | D Kudla | 4 | 4 | ||||||||||||||||||||
| Q |  J Choinski | 0 | 3 | 4/Alt | S Kozlov | 4 | 4 | ||||||||||||||||||||
| WC |  Akram El Sallaly | 2 | 3 | 6 | D King | 6 | 6 | ||||||||||||||||||||
| N Rubin | 6 | 6 | N Rubin | 6 | 1 | 2 | |||||||||||||||||||||
| PR | A Ward | 5 | 62 | 6 | D King | 2 | 6 | 6 | |||||||||||||||||||
| 6 | D King | 7 | 77 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 7 | F Auger-Aliassime | 2 | 2 | ||||||||||||||||||||||||
| Q |  D Tursunov | 6 | 6 | Q | D Tursunov | 77 | 6 | ||||||||||||||||||||
 J-P Smith | 6 | 6 | J-P Smith | 62 | 3 | ||||||||||||||||||||||
| F Peliwo | 2 | 3 | Q | D Tursunov | 3 | 0r | |||||||||||||||||||||
| M McDonald | 6 | 4 | 6 | 3 | M Mmoh | 6 | 0 | ||||||||||||||||||||
| WC | A Göransson | 2 | 6 | 2 | M McDonald | 6 | 2 | 64 | |||||||||||||||||||
| T Kamke | 2 | 1 | 3 | M Mmoh | 1 | 6 | 77 | ||||||||||||||||||||
| 3 | M Mmoh | 6 | 6 | 3 | M Mmoh | 5 | 2 | ||||||||||||||||||||
| 8 | C Norrie | 6 | 6 | 8 | C Norrie | 7 | 6 | ||||||||||||||||||||
| WC | D Baughman | 3 | 1 | 8 | C Norrie | 4 | 77 | 6 | |||||||||||||||||||
 J Šátral | 2 | 2 | B Klein | 6 | 61 | 4 | |||||||||||||||||||||
| B Klein | 6 | 6 | 8 | C Norrie | 6 | 77 | |||||||||||||||||||||
| M Krueger | 67 | 1 | 2 | T Sandgren | 3 | 65 | |||||||||||||||||||||
| L Broady | 79 | 6 | L Broady | 67 | 4 | ||||||||||||||||||||||
| C O'Connell | 5 | 5 | 2 | T Sandgren | 79 | 6 | |||||||||||||||||||||
| 2 | T Sandgren | 7 | 7 | ||||||||||||||||||||||||
Jiří Veselý was the defending champion, but lost in the first round to Roberto Bautista Agut.
Bautista Agut went on to win the title, defeating Jack Sock in the final, 6–1, 1–0, ret.
Darian King was the defending champion but chose not to defend his title.
James McGee was the defending champion but chose not to defend his title.
Darian King was the defending champion but lost in the first round to Mackenzie McDonald.
Jack Sock was the defending champion, but lost in the second round to Reilly Opelka.
Sam Querrey was the defending champion, but lost in the first round to Matthew Ebden.
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.
Dudi Sela was the defending champion but chose not to defend his title.
Cameron Norrie was the defending champion but chose not to defend his title.
Lucas Pouille was the defending champion, but lost to Borna Ćorić in the second round.
Roberto Bautista Agut was the defending champion, but withdrew before the tournament began.
Frances Tiafoe was the defending champion, but lost in the first round to Dan Evans.
David Marrero and Fernando Verdasco were the defending champions, but Verdasco chose not to defend the title and Marrero chose to compete in Marseille instead.
Defending champion Rafael Nadal successfully defended his title, defeating Novak Djokovic in the final 6–0, 4–6, 6–1, to win the men's singles title at the 2019 Italian Open. It was his record-extending ninth Italian Open title and a record 34th ATP Masters 1000 title.
Nikoloz Basilashvili was the defending champion, but lost in the second round to Stefanos Tsitsipas.
Novak Djokovic was the defending champion, but lost to Stefanos Tsitsipas in the quarterfinals.
Novak Djokovic defeated Denis Shapovalov in the final, 6–3, 6–4 to win the singles title at the 2019 Paris Masters. It was his record-extending fifth Paris Masters title, and he did not drop a set during the tournament.
Reilly Opelka was the defending champion, but lost to Jason Jung in the quarterfinals.
Cameron Norrie defeated Reilly Opelka in the final, 7–6(7–1), 7–6(7–4) to win the singles title at the 2022 Delray Beach Open.