2021 Portugal Ladies Open – Singles
{{Tennis events|2021|Portugal Ladies Open|
| champ = {{flagicon|CHN}} Zheng Saisai
| runner = {{flagicon|FRA}} Harmony Tan
| score = 6–4, 3–6, 6–3
| type = singles doubles
| before_name = Oeste Ladies Open – Singles
| after_name = Caldas da Rainha Ladies Open – Singles
| before_year = 2019
}}
{{main article|2021 Portugal Ladies Open}}
Isabella Shinikova was the defending champion{{cite web|url=https://www.itftennis.com/en/tournament/w60-caldas-da-rainha/por/2019/w-itf-por-11a-2019/draws-and-results/|title=W60 Caldas da Rainha (2019)|website=www.itftennis.com}} but chose to compete at the 2021 BGL Luxembourg Open instead.
Zheng Saisai won the title, defeating Harmony Tan in the final, 6–4, 3–6, 6–3.
Seeds
{{columns-list|colwidth=30em|
- {{flagicon|CHN}} Zheng Saisai
- {{flagicon|CHN}} Wang Xinyu (quarterfinals)
- {{flagicon|FRA}} Harmony Tan (final)
- {{flagicon|AUS}} Maddison Inglis (semifinals)
- {{flagicon|AUS}} Arina Rodionova (first round)
- {{flagicon|AUS}} Lizette Cabrera (first round)
- {{flagicon|BRA}} Beatriz Haddad Maia (semifinals)
- {{flagicon|UKR}} Daria Snigur (first round)
}}
Draw
{{Draw key}}
=Finals=
{{4TeamBracket-Tennis3-v2
| RD1=Semifinals
| RD2=Final
| team-width=175
| RD1-seed1=1
| RD1-team1={{flagicon|CHN}} Zheng Saisai
| RD1-score1-1=6
| RD1-score1-2=6
| RD1-score1-3=
| RD1-seed2=4
| RD1-team2={{flagicon|AUS}} Maddison Inglis
| RD1-score2-1=2
| RD1-score2-2=3
| RD1-score2-3=
| RD1-seed3=3
| RD1-team3={{flagicon|FRA}} Harmony Tan
| RD1-score3-1=77
| RD1-score3-2=77
| RD1-score3-3=
| RD1-seed4=7
| RD1-team4={{flagicon|BRA}} Beatriz Haddad Maia
| RD1-score4-1=65
| RD1-score4-2=64
| RD1-score4-3=
| RD2-seed1=1
| RD2-team1={{flagicon|CHN}} Zheng Saisai
| RD2-score1-1=6
| RD2-score1-2=3
| RD2-score1-3=6
| RD2-seed2=3
| RD2-team2={{flagicon|FRA}} Harmony Tan
| RD2-score2-1=4
| RD2-score2-2=6
| RD2-score2-3=3
}}
=Top half=
{{16TeamBracket-Compact-Tennis3
| RD1=First round
| RD2=Second round
| RD3=Quarterfinals
| RD4=Semifinals
| RD1-seed01=1
| RD1-team01={{flagicon|CHN}} S Zheng
| RD1-score01-1=6
| RD1-score01-2=6
| RD1-score01-3=
| RD1-seed02=
| RD1-team02={{flagicon|JPN}} K Okamura
| RD1-score02-1=2
| RD1-score02-2=1
| RD1-score02-3=
| RD1-seed03=
| RD1-team03={{flagicon|FRA}} A Hesse
| RD1-score03-1=6
| RD1-score03-2=6
| RD1-score03-3=
| RD1-seed04=
| RD1-team04={{flagicon|FRA}} C Monnet
| RD1-score04-1=1
| RD1-score04-2=4
| RD1-score04-3=
| RD1-seed05=
| RD1-team05={{flagicon|BEL}} M Benoît
| RD1-score05-1=6
| RD1-score05-2=6
| RD1-score05-3=
| RD1-seed06=WC
| RD1-team06={{flagicon|POR}} S Lança
| RD1-score06-1=2
| RD1-score06-2=0
| RD1-score06-3=
| RD1-seed07=Q
| RD1-team07={{flagicon|ROU}} IL Roșca
| RD1-score07-1=4
| RD1-score07-2=6
| RD1-score07-3=77
| RD1-seed08=6
| RD1-team08={{flagicon|AUS}} L Cabrera
| RD1-score08-1=6
| RD1-score08-2=3
| RD1-score08-3=64
| RD1-seed09=4
| RD1-team09={{flagicon|AUS}} M Inglis
| RD1-score09-1=3
| RD1-score09-2=7
| RD1-score09-3=6
| RD1-seed10=Q
| RD1-team10={{flagicon|POL}} W Falkowska
| RD1-score10-1=6
| RD1-score10-2=5
| RD1-score10-3=3
| RD1-seed11=
| RD1-team11={{flagicon|USA}} R Anderson
| RD1-score11-1=77
| RD1-score11-2=3
| RD1-score11-3=5
| RD1-seed12=
| RD1-team12={{flagicon|SRB}} N Stevanović
| RD1-score12-1=63
| RD1-score12-2=6
| RD1-score12-3=7
| RD1-seed13=Q
| RD1-team13={{flagicon|AUS}} O Gadecki
| RD1-score13-1=4
| RD1-score13-2=6
| RD1-score13-3=6
| RD1-seed14=WC
| RD1-team14={{flagicon|ITA}} D Spiteri
| RD1-score14-1=6
| RD1-score14-2=1
| RD1-score14-3=1
| RD1-seed15=SE
| RD1-team15={{flagicon|FIN}} A Kulikova
| RD1-score15-1=6
| RD1-score15-2=6
| RD1-score15-3=
| RD1-seed16=5
| RD1-team16={{flagicon|AUS}} Ar Rodionova
| RD1-score16-1=0
| RD1-score16-2=4
| RD1-score16-3=
| RD2-seed01=1
| RD2-team01={{flagicon|CHN}} S Zheng
| RD2-score01-1=2
| RD2-score01-2=7
| RD2-score01-3=7
| RD2-seed02=
| RD2-team02={{flagicon|FRA}} A Hesse
| RD2-score02-1=6
| RD2-score02-2=5
| RD2-score02-3=5
| RD2-seed03=
| RD2-team03={{flagicon|BEL}} M Benoît
| RD2-score03-1=4
| RD2-score03-2=6
| RD2-score03-3=6
| RD2-seed04=Q
| RD2-team04={{flagicon|ROU}} IL Roșca
| RD2-score04-1=6
| RD2-score04-2=4
| RD2-score04-3=4
| RD2-seed05=4
| RD2-team05={{flagicon|AUS}} M Inglis
| RD2-score05-1=6
| RD2-score05-2=6
| RD2-score05-3=
| RD2-seed06=
| RD2-team06={{flagicon|SRB}} N Stevanović
| RD2-score06-1=2
| RD2-score06-2=1
| RD2-score06-3=
| RD2-seed07=Q
| RD2-team07={{flagicon|AUS}} O Gadecki
| RD2-score07-1=6
| RD2-score07-2=4
| RD2-score07-3=4
| RD2-seed08=SE
| RD2-team08={{flagicon|FIN}} A Kulikova
| RD2-score08-1=2
| RD2-score08-2=6
| RD2-score08-3=6
| RD3-seed01=1
| RD3-team01={{flagicon|CHN}} S Zheng
| RD3-score01-1=6
| RD3-score01-2=6
| RD3-score01-3=
| RD3-seed02=
| RD3-team02={{flagicon|BEL}} M Benoît
| RD3-score02-1=3
| RD3-score02-2=1
| RD3-score02-3=
| RD3-seed03=4
| RD3-team03={{flagicon|AUS}} M Inglis
| RD3-score03-1=6
| RD3-score03-2=4
| RD3-score03-3=6
| RD3-seed04=SE
| RD3-team04={{flagicon|FIN}} A Kulikova
| RD3-score04-1=2
| RD3-score04-2=6
| RD3-score04-3=3
| RD4-seed01=1
| RD4-team01={{flagicon|CHN}} S Zheng
| RD4-score01-1=6
| RD4-score01-2=6
| RD4-score01-3=
| RD4-seed02=4
| RD4-team02={{flagicon|AUS}} M Inglis
| RD4-score02-1=2
| RD4-score02-2=3
| RD4-score02-3=
}}
=Bottom half=
{{16TeamBracket-Compact-Tennis3
| RD1=First round
| RD2=Second round
| RD3=Quarterfinals
| RD4=Semifinals
| RD1-seed01=8/JE
| RD1-team01={{flagicon|UKR}} D Snigur
| RD1-score01-1=3
| RD1-score01-2=4
| RD1-score01-3=
| RD1-seed02=
| RD1-team02={{flagicon|FRA}} J Ponchet
| RD1-score02-1=6
| RD1-score02-2=6
| RD1-score02-3=
| RD1-seed03=WC
| RD1-team03={{flagicon|POR}} I Murta
| RD1-score03-1=3
| RD1-score03-2=3
| RD1-score03-3=
| RD1-seed04=Q
| RD1-team04={{flagicon|CYP}} R Șerban
| RD1-score04-1=6
| RD1-score04-2=6
| RD1-score04-3=
| RD1-seed05=WC
| RD1-team05={{flagicon|POR}} F Jorge
| RD1-score05-1=6
| RD1-score05-2=66
| RD1-score05-3=6
| RD1-seed06=
| RD1-team06={{flagicon|BRA}} C Alves
| RD1-score06-1=2
| RD1-score06-2=78
| RD1-score06-3=2
| RD1-seed07=Q
| RD1-team07={{flagicon|FRA}} S Djoubri
| RD1-score07-1=3
| RD1-score07-2=3
| RD1-score07-3=
| RD1-seed08=3
| RD1-team08={{flagicon|FRA}} H Tan
| RD1-score08-1=6
| RD1-score08-2=6
| RD1-score08-3=
| RD1-seed09=7
| RD1-team09={{flagicon|BRA}} B Haddad Maia
| RD1-score09-1=6
| RD1-score09-2=6
| RD1-score09-3=
| RD1-seed10=Q
| RD1-team10={{flagicon|GBR}} E Silva
| RD1-score10-1=0
| RD1-score10-2=1
| RD1-score10-3=
| RD1-seed11=
| RD1-team11={{flagicon|AUS}} E Perez
| RD1-score11-1=6
| RD1-score11-2=6
| RD1-score11-3=
| RD1-seed12=Q
| RD1-team12={{flagicon|GER}} S-R Sekulic
| RD1-score12-1=2
| RD1-score12-2=2
| RD1-score12-3=
| RD1-seed13=
| RD1-team13={{flagicon|GER}} T Maria
| RD1-score13-1=6
| RD1-score13-2=6
| RD1-score13-3=
| RD1-seed14=Q
| RD1-team14={{flagicon|ROU}} E Bogdan
| RD1-score14-1=2
| RD1-score14-2=4
| RD1-score14-3=
| RD1-seed15=
| RD1-team15={{flagicon|RUS}} A Tikhonova
| RD1-score15-1=3
| RD1-score15-2=5
| RD1-score15-3=
| RD1-seed16=2
| RD1-team16={{flagicon|CHN}} Xin Wang
| RD1-score16-1=6
| RD1-score16-2=7
| RD1-score16-3=
| RD2-seed01=
| RD2-team01={{flagicon|FRA}} J Ponchet
| RD2-score01-1=5
| RD2-score01-2=4
| RD2-score01-3=
| RD2-seed02=Q
| RD2-team02={{flagicon|CYP}} R Șerban
| RD2-score02-1=7
| RD2-score02-2=6
| RD2-score02-3=
| RD2-seed03=WC
| RD2-team03={{flagicon|POR}} F Jorge
| RD2-score03-1=2
| RD2-score03-2=2
| RD2-score03-3=
| RD2-seed04=3
| RD2-team04={{flagicon|FRA}} H Tan
| RD2-score04-1=6
| RD2-score04-2=6
| RD2-score04-3=
| RD2-seed05=7
| RD2-team05={{flagicon|BRA}} B Haddad Maia
| RD2-score05-1=6
| RD2-score05-2=6
| RD2-score05-3=
| RD2-seed06=
| RD2-team06={{flagicon|AUS}} E Perez
| RD2-score06-1=4
| RD2-score06-2=4
| RD2-score06-3=
| RD2-seed07=
| RD2-team07={{flagicon|GER}} T Maria
| RD2-score07-1=2
| RD2-score07-2=1
| RD2-score07-3=
| RD2-seed08=2
| RD2-team08={{flagicon|CHN}} Xin Wang
| RD2-score08-1=6
| RD2-score08-2=6
| RD2-score08-3=
| RD3-seed01=Q
| RD3-team01={{flagicon|CYP}} R Șerban
| RD3-score01-1=64
| RD3-score01-2=5
| RD3-score01-3=
| RD3-seed02=3
| RD3-team02={{flagicon|FRA}} H Tan
| RD3-score02-1=77
| RD3-score02-2=7
| RD3-score02-3=
| RD3-seed03=7
| RD3-team03={{flagicon|BRA}} B Haddad Maia
| RD3-score03-1=6
| RD3-score03-2=6
| RD3-score03-3=
| RD3-seed04=2
| RD3-team04={{flagicon|CHN}} Xin Wang
| RD3-score04-1=3
| RD3-score04-2=4
| RD3-score04-3=
| RD4-seed01=3
| RD4-team01={{flagicon|FRA}} H Tan
| RD4-score01-1=77
| RD4-score01-2=77
| RD4-score01-3=
| RD4-seed02=7
| RD4-team02={{flagicon|BRA}} B Haddad Maia
| RD4-score02-1=65
| RD4-score02-2=64
| RD4-score02-3=
}}
References
{{reflist}}
- [https://www.itftennis.com/en/tournament/w60plush-caldas-da-rainha/por/2021/w-itf-por-10a-2021/draws-and-results/ Main Draw]
{{DEFAULTSORT:2021 Portugal Ladies Open - Singles}}