The 2023 Tennis Open Karlsruhe was a professional

tennis Tennis is a List of racket sports, racket sport that is played either individually against a single opponent (singles (tennis), singles) or between two teams of two players each (doubles (tennis), doubles). Each player uses a tennis racket st ...

tournament played on

clay court A clay court is one of the types of tennis court on which the sport of tennis is played. Clay courts are built on a foundation of crushed stone, brick, shale, and other construction aggregate, aggregate, with a thin layer of fine clay particles ...

s. It was the first edition of the tournament which was part of the

2023 ATP Challenger Tour The Association of Tennis Professionals (ATP) ATP Challenger Tour, Challenger Tour in 2023 in tennis, 2023 was the secondary professional tennis circuit organized by the ATP. The 2023 ATP Challenger Tour calendar comprised 196 tournaments, with pr ...

. It took place in

Karlsruhe Karlsruhe ( ; ; ; South Franconian German, South Franconian: ''Kallsruh'') is the List of cities in Baden-Württemberg by population, third-largest city of the States of Germany, German state of Baden-Württemberg, after its capital Stuttgart a ...

, Germany between 3 and 9 July 2023.

Singles main-draw entrants

Seeds

* ¹ Rankings are as of 26 June 2023.

Other entrants

The following players received wildcards into the singles main draw: * Liam Gavrielides *

Henri Squire Henri Squire (born 27 September 2000) is a German tennis player. He has a career-high ATP singles ranking of world No. 169, achieved on 15 July 2024, and a doubles ranking of No. 345, attained on 28 August 2023. He played two seasons of college ...

Marko Topo Marko Topo (; born 13 September 2003) is a German tennis player. He has a career high ATP singles ranking of world No. 276, achieved on 16 June 2025, and a doubles ranking of No. 573, achieved on 1 July 2024. Topo formerly represented Serbia. Ca ...

The following players received entry from the qualifying draw: * Dali Blanch *

Hady Habib Hady Habib (; born 21 August 1998) is an American-born Lebanese professional tennis player. He has a career high ATP singles ranking of world No. 159 achieved on 5 May 2025 and a doubles ranking of No. 274 achieved on 23 December 2024. Habib w ...

* Tim Handel *

Oriol Roca Batalla Oriol Roca Batalla (, ; born 30 April 1993) is a professional Spanish tennis player who competes on the ATP Challenger Tour. He has a career high ATP singles ranking of World No. 150 achieved on 19 August 2024 and a doubles ranking of No. 128 ac ...

Akira Santillan is an Australian tennis player. He represents Australia in competitions, though he played for Japan from 2015 to 2017. Early life Santillan was born in Tokyo to a Japanese mother and a South African father. He lived the first 8 years of his li ...

Denis Yevseyev Denis Yevseyev (born 22 May 1993) is a Kazakh tennis player who competes on the ATP Challenger Tour. He has a career high ATP singles ranking of world No. 153 achieved on 22 July 2024. He also has a career high ATP doubles ranking of No. 247 ac ...

Champions

Singles

Alejandro Tabilo Alejandro Tabilo Álvarez (born 2 June 1997) is a Chilean professional tennis player. He has been ranked by the ATP as high as world No. 19 in singles, achieved on 1 July 2024 and a doubles ranking of No. 108, attained on 6 January 2025. He is ...

def.

Giulio Zeppieri Giulio Zeppieri (born 7 December 2001) is an Italian professional tennis player. Zeppieri has a career high ATP singles ranking of world No. 110 achieved on 29 January 2024. He also has a career high ATP doubles ranking of world No. 242 achieve ...

2–6, 1–0 ret.

Doubles

Neil Oberleitner Neil Oberleitner (born 5 August 1999) is an Austrian tennis Tennis is a List of racket sports, racket sport that is played either individually against a single opponent (singles (tennis), singles) or between two teams of two players each ( ...

Tim Sandkaulen Tim Sandkaulen (born 29 December 1997) is a retired German tennis player who specialized in doubles. Sandkaulen had a career high ATP doubles ranking of world No. 172, achieved on 25 September 2023. He played college tennis at Ole Miss. Caree ...

def.

Vít Kopřiva Vít Kopřiva (born 15 June 1997) is a Czech professional tennis player who competes on the ATP Challenger Tour. He has a career-high ATP singles ranking of No. 82 achieved on 16 June 2025. He also has a career-high doubles ranking of No. 261 ac ...

Michail Pervolarakis Michail Pervolarakis (born 6 June 1996) is a Cypriot-born Greek tennis player. Pervolarakis has a career high ATP singles ranking of World No. 366 achieved on 10 January 2022. He also has a career high ATP doubles ranking of World No. 157 achie ...

6–1, 6–1.

References

{{DEFAULTSORT:Tennis Open Karlsruhe, 2023 2023 ATP Challenger Tour 2023 in German tennis July 2023 sports events in Germany