Laura Siegemund Laura Natalie Siegemund (born 4 March 1988) is a German professional tennis player. Siegemund reached her career-high doubles ranking of world No. 4 on 29 January 2024 and has won fourteen doubles titles on the WTA Tour. She is a three-time Gran ...

was the defending champion, but lost in the second round to CoCo Vandeweghe.

Karolína Plíšková Karolína Plíšková (; born 21 March 1992) is a Czech professional tennis player. She has been ranked as the world No. 1 in women's singles by the Women's Tennis Association (WTA), holding the position for a total of eight weeks, and has been ...

won the title, defeating Vandeweghe in the final, 7–6^(7–2), 6–4. 15-year-old

Marta Kostyuk Marta Olehivna Kostyuk ( ; born 28 June 2002) is a Ukrainian professional tennis player. She has career-high WTA rankings of world No. 16 in singles, achieved on 17 June 2024 and No. 27 in doubles, achieved on 8 May 2023. On the WTA Tour, she h ...

became the youngest player to win a main draw match in Stuttgart since

Martina Hingis Martina Hingis (, ; born 30 September 1980) is a Swiss former professional tennis player. She was ranked as the world No. 1 in women's singles by the Women's Tennis Association (WTA) for 209 weeks ( fifth-most of all time) and as the world No. ...

in October 1994.

Seeds

The top four

seeds In botany, a seed is a plant structure containing an embryo and stored nutrients in a protective coat called a ''testa''. More generally, the term "seed" means anything that can be sown, which may include seed and husk or tuber. Seeds are the ...

received a bye into the second round.

Draw

Finals

Top half

Bottom half

Qualifying

Seeds

Qualifiers

Lucky loser

Draw

First qualifier

Second qualifier

Third qualifier

Fourth qualifier

References

External links

Main draw

Qualifying draw
{{DEFAULTSORT:2018 Porsche Tennis Grand Prix - Singles Porsche Tennis Grand Prix Singles 2018 Women's Singles