| Singles | |
|---|---|
| 2022 Oeiras Ladies Open | |
| Champion |  Elisabetta Cocciaretto |
| Runner-up |  Viktoriya Tomova |
| Final score | 7–6(7–5), 2–6, 7–5 |
Polona Hercog was the defending champion [1] but chose not to participate.
Elisabetta Cocciaretto won the title, defeating Viktoriya Tomova in the final, 7–6(7–5), 2–6, 7–5.
Varvara Gracheva (second round)
Clara Burel (withdrew) Océane Dodin (withdrew) Diane Parry (second round) Kristina Mladenovic (first round, retired) Vitalia Diatchenko (first round) Chloé Paquet (first round)
Dalma Gálfi (semifinals)| Semifinals | Final | ||||||||||||
| Yuliya Hatouka | 7 | 1 | 1 | ||||||||||
| Viktoriya Tomova | 5 | 6 | 6 | ||||||||||
| Viktoriya Tomova | 65 | 6 | 5 | ||||||||||
| Q | Elisabetta Cocciaretto | 77 | 2 | 7 | |||||||||
| Q | Elisabetta Cocciaretto | 6 | 6 | ||||||||||
| 8 | Dalma Gálfi | 3 | 3 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | V Gracheva | 6 | 3 | 6 | |||||||||||||||||||||||
 C Bucșa | 1 | 6 | 3 | 1 | V Gracheva | 7 | 2 | 3 | |||||||||||||||||||
| Y Hatouka | 6 | 6 | Y Hatouka | 5 | 6 | 6 | |||||||||||||||||||||
 K Kawa | 2 | 1 | Y Hatouka | 6 | 6 | ||||||||||||||||||||||
| Q | S Rubini | 4 | 4 | Q |  A Mitu | 3 | 3 | ||||||||||||||||||||
| SE | L Jeanjean | 6 | 6 | SE | L Jeanjean | 3 | 6 | 68 | |||||||||||||||||||
| Q | A Mitu | 1 | 77 | 6 | Q | A Mitu | 6 | 4 | 710 | ||||||||||||||||||
| 7 | C Paquet | 6 | 64 | 3 | Y Hatouka | 7 | 1 | 1 | |||||||||||||||||||
| LL | N Vikhlyantseva | 6 | 6 | V Tomova | 5 | 6 | 6 | ||||||||||||||||||||
| Q |  N Schunk | 2 | 3 | LL | N Vikhlyantseva | 4 | 6 | 5 | |||||||||||||||||||
| WC |  AF Santos | 1 | 1 | F Ferro | 6 | 4 | 7 | ||||||||||||||||||||
| F Ferro | 6 | 6 | F Ferro | 2 | 1 | ||||||||||||||||||||||
 J Grabher | 6 | 65 | 3 | V Tomova | 6 | 6 | |||||||||||||||||||||
| V Tomova | 3 | 77 | 6 | V Tomova | 6 | 77 | |||||||||||||||||||||
| Q | K Gerlach | 6 | 7 | Q | K Gerlach | 1 | 63 | ||||||||||||||||||||
| 6 | V Diatchenko | 0 | 5 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 5 | K Mladenovic | 4 | 0r | ||||||||||||||||||||||||
| A-L Friedsam | 6 | 0 | A-L Friedsam | 1 | 6 | 5 | |||||||||||||||||||||
| Q | E Cocciaretto | 5 | 6 | 6 | Q | E Cocciaretto | 6 | 2 | 7 | ||||||||||||||||||
| Q |  I Gamarra Martins | 7 | 4 | 2 | Q | E Cocciaretto | 6 | 6 | |||||||||||||||||||
| Q |  A Lahey | 2 | 4 | WC |  N Stevanović | 3 | 3 | ||||||||||||||||||||
| WC | N Stevanović | 6 | 6 | WC | N Stevanović | 6 | 6 | ||||||||||||||||||||
| WC | M Jorge | 6 | 1 | 5 | 4 | D Parry | 3 | 4 | |||||||||||||||||||
| 4 | D Parry | 3 | 6 | 7 | Q | E Cocciaretto | 6 | 6 | |||||||||||||||||||
| 8 | D Gálfi | 711 | 6 | 8 | D Gálfi | 3 | 3 | ||||||||||||||||||||
| Q |  J Mikulskytė | 69 | 0 | 8 | D Gálfi | 6 | 4 | 6 | |||||||||||||||||||
| JE |  P Marčinko | 6 | 6 | JE | P Marčinko | 0 | 6 | 4 | |||||||||||||||||||
 L Zhu | 3 | 3 | 8 | D Gálfi | 79 | 6 | |||||||||||||||||||||
| LL | J Bouzas Maneiro | 4 | 6 | 3 | A Blinkova | 67 | 4 | ||||||||||||||||||||
| A Blinkova | 6 | 3 | 6 | A Blinkova | 6 | 6 | |||||||||||||||||||||
| WC | F Jorge | 6 | 77 | WC | F Jorge | 2 | 2 | ||||||||||||||||||||
| LL |  A Barnett | 1 | 65 | ||||||||||||||||||||||||
Roger Federer was the defending champion, but withdrew due to fatigue.
Amélie Mauresmo was the defending champion, but lost in the semifinals to Justine Henin-Hardenne.
Michael Stich was the defending champion, but chose not to participate that year.
Agnieszka Radwańska was the defending champion, but lost in the quarterfinals to Virginie Razzano.
David Nalbandian was the defending champion, but did not defend his title due to a hip injury.
Marcos Baghdatis won in the final 6–1, 7–5 against Olivier Rochus.
Michaël Llodra was the defending champion, but chose not to compete.
The 1999 Warsaw Cup by Heros singles was the singles event of the fifth edition of the Warsaw Open; a WTA Tier IV tournament held in Warsaw, Poland. Conchita Martínez won the tournament last year when it was a Tier III event. She did not compete this year.
Roger Federer was the defending champion, but was forced to withdraw from the tournament before the semifinals because of a back injury. Following Federer's withdrawal, Stefan Edberg and Jo-Wilfried Tsonga played a one set exhibition match to make up the evening session.
Tommy Haas was the defending champion, but lost in the second round this year.
Marion Bartoli was the defending champion, but lost in the semifinal to Tamira Paszek.
Thomas Johansson was the defending champion.
David Ferrer successfully defended his title by defeating Philipp Kohlschreiber in the final, 7–6(7–5), 6–1.
Alicia Molik was the defending champion, but retired in the first round against Jelena Janković.
Amélie Mauresmo was the defending champion, but withdrew prior to their quarterfinals match against Serena Williams.
Justine Henin-Hardenne was the defending champion, but did not compete this year.
Anna Smashnova-Pistolesi was the defending champion, but lost in second round to Marta Domachowska.
Lucie Šafářová was the defending champion, but withdrew from her second-round match against Kristýna Plíšková.
Tomáš Berdych was the two-time defending champion, but withdrew before the competition began.
Meghann Shaughnessy was the defending champion, but decided to compete in Sydney.
Bernard Tomic was the defending champion, but retired in the first round of the qualifying tournament against Denis Istomin.