2021 Karlsruhe Open

The 2021 Karlsruhe Open (also known as the Liqui Moly Open for sponsorship reasons) was a professional tennis tournament played on outdoor clay courts. It was the 2nd edition of the tournament and part of the 2021 WTA 125K series, offering a total of $115,000 in prize money. It took place in Karlsruhe, Germany between 7 and 12 September 2021. The tournament did not take place in 2020 due to the COVID-19 pandemic.^[1]

2021 Karlsruhe Open
Date	7 – 12 September
Edition	2nd
Category	WTA 125K series
Draw	32S / 8D
Prize money	$115,000
Surface	Clay
Location	Karlsruhe, Germany
Venue	TC Rüppurr
Champions
Singles
Mayar Sherif
Doubles
Irina Bara / Ekaterine Gorgodze

Champions

Singles

Main article: 2021 Karlsruhe Open – Singles

• Mayar Sherif def. Martina Trevisan, 6–3, 6–2

Doubles

Main article: 2021 Karlsruhe Open – Doubles

• Irina Bara / Ekaterine Gorgodze def. Katarzyna Piter / Mayar Sherif, 6–3, 2–6, [10–7]

Singles main draw entrants

Seeds

Country	Player	Rank1	Seed
FRA	Clara Burel	92	1
SVK	Anna Karolína Schmiedlová	93	2
EGY	Mayar Sherif	96	3
ITA	Martina Trevisan	106	4
SLO	Kaja Juvan	109	5
BEL	Maryna Zanevska	113	6
AUS	Astra Sharma	114	7
ROU	Irina Bara	118	8

• ¹ Rankings as of 30 August 2021.

Other entrants

The following players received a wildcard into the singles main draw:

• Sina Herrmann
• Tatjana Maria
• Nastasja Schunk
• Alexandra Vecic

The following players qualified into the singles main draw:

• Giulia Gatto-Monticone
• Katharina Hobgarski
• Yana Morderger
• Tereza Mrdeža

Withdrawals

Before the tournament

• Ana Bogdan → replaced by Maddison Inglis
• Elisabetta Cocciaretto → replaced by Jaqueline Cristian
• Varvara Gracheva → replaced by Paula Ormaechea
• Polona Hercog → replaced by Ekaterine Gorgodze
• Kristína Kučová → replaced by Rebecca Šramková
• Varvara Lepchenko → replaced by Grace Min
• Jasmine Paolini → replaced by Lucia Bronzetti
• Nuria Párrizas Díaz → replaced by Katarina Zavatska
• Kristýna Plíšková → replaced by Tamara Korpatsch
• Arantxa Rus → replaced by Anastasia Gasanova
• Elena-Gabriela Ruse → replaced by Dalma Gálfi
• Viktoriya Tomova → replaced by Cristina Bucșa
• Zhang Shuai → replaced by Katarzyna Kawa

Doubles entrants

Seeds

Country	Player	Country	Player	Rank1	Seed
AUS	Astra Sharma	NED	Rosalie van der Hoek	218	1
GER	Vivian Heisen	BEL	Kimberley Zimmermann	232	2
POL	Katarzyna Piter	EGY	Mayar Sherif	271	3
ROU	Irina Bara	GEO	Ekaterine Gorgodze	286	4

• ¹ Rankings as of 30 August 2021.

Other entrants

The following pair received a wildcard into the doubles main draw:

• Nastasja Schunk / Alexandra Vecic