Stefano Napolitano Stefano Napolitano (; born 11 April 1995) is an Italian professional tennis player playing on the ATP Challenger Tour. He reached his highest ATP singles ranking of world No. 121 on 17 June 2024 and a doubles ranking of No. 182, achieved on 3 Apr ...

was the defending champion but lost in the second round to

Matteo Donati Matteo Donati (; born 28 February 1995) is an Italian former professional tennis player and current tennis coach. Career On 13 April 2015, he reached the final of the ATP Challenger, the Napoli Cup, and reached a career-high of No. 247 in the ...

Lorenzo Sonego Lorenzo Sonego (; born 11 May 1995) is an Italian professional tennis player. Sonego has won four singles titles on the ATP Tour, and two doubles titles. He has a career high Association of Tennis Professionals, ATP singles ATP rankings, ranking o ...

won the title after defeating

Tim Pütz Tim Pütz (; born 19 November 1987) is a German professional tennis player who specializes in doubles. He reached his career-high doubles ranking of world No. 6 on 17 February 2025, and has won ten doubles titles on the ATP Tour, including the 2 ...

6–4, 6–4 in the final.

Seeds

Draw

Finals

Top half

Bottom half

References

Main DrawQualifying Draw
{{DEFAULTSORT:2017 Sparkassen ATP Challenger - Singles Sparkassen ATP Challenger - Singles

2017 Singles Seventeen or 17 may refer to: *17 (number) * One of the years 17 BC, AD 17, 1917, 2017, 2117 Science * Chlorine, a halogen in the periodic table * 17 Thetis, an asteroid in the asteroid belt Literature Magazines * ''Seventeen'' (American ma ...