| Singles | |
|---|---|
| 2017 Reinert Open | |
| Champion |  Mihaela Buzărnescu |
| Runner-up |  Barbara Haas |
| Final score | 6–0, 6–2 |
Antonia Lottner was the defending champion, but withdrew before the tournament started.
Mihaela Buzărnescu won the title, defeating Barbara Haas in the final, 6–0, 6–2.
Richèl Hogenkamp (second round)
Sabina Sharipova (quarterfinals)
Antonia Lottner (withdrew) Arantxa Rus (second round)
Tereza Smitková (first round)
Rebecca Peterson (quarterfinals)
İpek Soylu (second round) Barbara Haas (final)
Lina Gjorcheska (withdrew)| Semifinals | Final | ||||||||||||
| 8 | Barbara Haas | 6 | 2 | 7 | |||||||||
| Bibiane Schoofs | 1 | 6 | 5 | ||||||||||
| 8 | Barbara Haas | 0 | 2 | ||||||||||
| Mihaela Buzărnescu | 6 | 6 | |||||||||||
| Mihaela Buzărnescu | 6 | 6 | |||||||||||
| Q | Anastasia Zarycká | 2 | 3 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | R Hogenkamp | 6 | 6 | ||||||||||||||||||||||||
| WC | F Kommer | 4 | 1 | 1 | R Hogenkamp | 6 | 3 | 3 | |||||||||||||||||||
 O Sáez Larra | 5 | 4 | Q |  K Zimmermann | 3 | 6 | 6 | ||||||||||||||||||||
| Q | K Zimmermann | 7 | 6 | Q | K Zimmermann | 3 | 6 | 0 | |||||||||||||||||||
 P Schnyder | 6 | 6 | 8 | B Haas | 6 | 1 | 6 | ||||||||||||||||||||
| Q |  S Pirazhenka | 0 | 1 | P Schnyder | 3 | 5 | |||||||||||||||||||||
| LL | L-I Andrei | 6 | 1 | 5 | 8 | B Haas | 6 | 7 | |||||||||||||||||||
| 8 | B Haas | 4 | 6 | 7 | 8 | B Haas | 6 | 2 | 7 | ||||||||||||||||||
| LL | M Kolodziejová | 3 | 3 | B Schoofs | 1 | 6 | 5 | ||||||||||||||||||||
 U Eikeri | 6 | 6 | U Eikeri | 6 | 2 | 0 | |||||||||||||||||||||
 A Omae | 3 | 0 | B Schoofs | 4 | 6 | 6 | |||||||||||||||||||||
| B Schoofs | 6 | 6 | B Schoofs | 6 | 6 | ||||||||||||||||||||||
| Q | V Heisen | 2 | 2 | L Schaeder | 4 | 2 | |||||||||||||||||||||
| L Schaeder | 6 | 6 | L Schaeder | 0 | 6 | 6 | |||||||||||||||||||||
| LL |  S Samir | 6 | 60 | 5 | 7 | İ Soylu | 6 | 3 | 2 | ||||||||||||||||||
| 7 | İ Soylu | 2 | 77 | 7 | |||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 6 | R Peterson | 6 | 6 | ||||||||||||||||||||||||
 P Monova | 2 | 4 | 6 | R Peterson | 6 | 6 | |||||||||||||||||||||
| K Hobgarski | 6 | 6 | K Hobgarski | 2 | 4 | ||||||||||||||||||||||
| WC | L Puppendahl | 0 | 1 | 6 | R Peterson | 2 | 2 | ||||||||||||||||||||
 J Glushko | 5 | 0r | M Buzărnescu | 6 | 6 | ||||||||||||||||||||||
| M Buzărnescu | 7 | 2 | M Buzărnescu | 6 | 6 | ||||||||||||||||||||||
| MT Torró Flor | 3 | 2 | 4 | A Rus | 4 | 1 | |||||||||||||||||||||
| 4 | A Rus | 6 | 6 | M Buzărnescu | 6 | 6 | |||||||||||||||||||||
| 5 | T Smitková | 2 | 1 | Q | A Zarycká | 2 | 3 | ||||||||||||||||||||
| Q | A Zarycká | 6 | 6 | Q | A Zarycká | 3 | 6 | 6 | |||||||||||||||||||
| WC | L Rüffer | 4 | 3 | V Kamenskaya | 6 | 3 | 4 | ||||||||||||||||||||
| V Kamenskaya | 6 | 6 | Q | A Zarycká | 4 | 6 | 6 | ||||||||||||||||||||
| K Muchová | 6 | 5 | 1 | 2 | S Sharipova | 6 | 4 | 2 | |||||||||||||||||||
| M Eguchi | 4 | 7 | 6 | M Eguchi | 3 | 2 | |||||||||||||||||||||
| WC | K Gerlach | 6 | 2 | 1 | 2 | S Sharipova | 6 | 6 | |||||||||||||||||||
| 2 | S Sharipova | 3 | 6 | 6 | |||||||||||||||||||||||
Grace Min was the defending champion, having won the event in 2011, but did not compete.
Taylor Townsend was the defending champion, having won the event in 2012, but chose not to participate.
Gabrielle Andrews and Taylor Townsend were the defending champions, having won the event in 2012, but both chose not to defend their title.
Annika Beck was the 2012 champion, but was no longer eligible to compete in junior tennis, and thus couldn't defend her title.
Samantha Crawford was the defending champion having won the 2012 event, but chose not to compete in 2013.
Lyudmyla and Nadiia Kichenok were the defending champions, but they chose to participate in Doha instead.
Karin Knapp was the defending champion, but withdrew before the tournament began.
This is the first edition of the tournament since 1994.
Yanina Wickmayer was the defending champion, but lost in the first round to Viktorija Golubic.
This is the first edition of the tournament.
Viktorija Golubic was the defending champion, but lost in the first round to Antonia Lottner.
Ekaterina Alexandrova was the defending champion, but lost in the quarterfinals to Antonia Lottner.
Mona Barthel was the defending champion, but lost in the first round to Antonia Lottner.
Anett Kontaveit was the defending champion, but lost in the first round to Veronika Kudermetova.
Zarina Diyas was the defending champion, but lost in the quarterfinals to Zhang Shuai.
Caroline Wozniacki was the two-time defending champion, but lost in the second round to Camila Giorgi.
The singles tournament at the 2019 WTA 250 Ladies Open Lugano in tennis was played on clay and contested between 50 women on 8 — 14 April 2019. Elise Mertens was defending champion, but abstained.
Petra Kvitová was the defending champion, but chose not to participate this year.
This was the first edition of the event.
World No. 1 Ashleigh Barty defeated Aryna Sabalenka in the final, 3–6, 6–0, 6–3 to win the women's singles tennis title at the 2021 edition of the Stuttgart Open.