| Singles | |
|---|---|
| 2021 Henderson Tennis Open | |
| Champion |  Emina Bektas |
| Runner-up |  Yuriko Lily Miyazaki |
| Score | 6–1, 6–1 |
Mayo Hibi was the defending champion [1] but chose to compete at the 2021 BNP Paribas Open instead.
Emina Bektas won the title, defeating Yuriko Lily Miyazaki in the final, 6–1, 6–1.
Conny Perrin (first round) Allie Kiick (quarterfinals) Yuriko Lily Miyazaki (final) Hanna Chang (semifinals) Alexa Glatch (first round) Emina Bektas (champion) Lulu Sun (second round) Nagi Hanatani (first round)| Semifinals | Final | ||||||||||||
| 6 | Emina Bektas | 6 | 6 | ||||||||||
| 4 | Hanna Chang | 1 | 2 | ||||||||||
| 6 | Emina Bektas | 6 | 6 | ||||||||||
| 3 | Yuriko Lily Miyazaki | 1 | 1 | ||||||||||
| 3 | Yuriko Lily Miyazaki | 6 | 6 | ||||||||||
| Chanelle Van Nguyen | 2 | 2 | |||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | C Perrin | 3 | 5 | ||||||||||||||||||||||||
| Q |  M Zacarías | 6 | 7 | Q | M Zacarías | 6 | 6 | ||||||||||||||||||||
| Q |  S Azran | 1 | 3 | Q | E Oosterhout | 1 | 1 | ||||||||||||||||||||
| Q | E Oosterhout | 6 | 6 | Q | M Zacarías | 0 | 5 | ||||||||||||||||||||
| Q | H Verner | 0 | 1 | 6 | E Bektas | 6 | 7 | ||||||||||||||||||||
| PR | H Kuwata | 6 | 6 | PR | H Kuwata | 3 | 66 | ||||||||||||||||||||
| WC | H Giavara | 0 | 0 | 6 | E Bektas | 6 | 78 | ||||||||||||||||||||
| 6 | E Bektas | 6 | 6 | 6 | E Bektas | 6 | 6 | ||||||||||||||||||||
| 4 | H Chang | 6 | 6 | 4 | H Chang | 1 | 2 | ||||||||||||||||||||
| Q | T Mar | 0 | 3 | 4 | H Chang | 7 | 77 | ||||||||||||||||||||
| Q Gleason | 2 | 6 | 1 |  A Isaeva | 5 | 65 | |||||||||||||||||||||
| A Isaeva | 6 | 0 | 6 | 4 | H Chang | 2 | 6 | 6 | |||||||||||||||||||
| Q | I Clement | 2 | 0 |  T Moore | 6 | 4 | 4 | ||||||||||||||||||||
| T Moore | 6 | 6 | T Moore | 6 | 1 | 6 | |||||||||||||||||||||
| WC | R McAdoo | 1 | 1 | 7 | L Sun | 2 | 6 | 2 | |||||||||||||||||||
| 7 | L Sun | 6 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 8 | N Hanatani | 2 | 1 | ||||||||||||||||||||||||
| D Hewitt | 6 | 6 | D Hewitt | 6 | 78 | ||||||||||||||||||||||
| Q | R Newborn | 1 | 2 | A Zhu | 3 | 66 | |||||||||||||||||||||
| A Zhu | 6 | 6 | D Hewitt | 6 | 3 | 4 | |||||||||||||||||||||
| T Kinard | 2 | 1 | 3 | YL Miyazaki | 2 | 6 | 6 | ||||||||||||||||||||
| S Chang | 6 | 6 | S Chang | 6 | 5 | 3 | |||||||||||||||||||||
| WC | A Riley | 1 | 0 | 3 | YL Miyazaki | 3 | 7 | 6 | |||||||||||||||||||
| 3 | YL Miyazaki | 6 | 6 | 3 | YL Miyazaki | 6 | 6 | ||||||||||||||||||||
| 5 | A Glatch | 6 | 4 | 1 | C Van Nguyen | 2 | 2 | ||||||||||||||||||||
| C Van Nguyen | 0 | 6 | 6 | C Van Nguyen | 6 | 6 | |||||||||||||||||||||
| Q |  M Helgesson | 3 | 3 |  T Mihalíková | 4 | 3 | |||||||||||||||||||||
| T Mihalíková | 6 | 6 | C Van Nguyen | 2 | 6 | 6 | |||||||||||||||||||||
| PR | L Chirico | 6 | 4 | 77 | 2 | A Kiick | 6 | 4 | 1 | ||||||||||||||||||
| J Aney | 4 | 6 | 64 | PR | L Chirico | 6 | 3 | 66 | |||||||||||||||||||
| WC | S Mohamad | 1 | 2 | 2 | A Kiick | 3 | 6 | 78 | |||||||||||||||||||
| 2 | A Kiick | 6 | 6 | ||||||||||||||||||||||||
Catherine Bellis was the defending champion, but decided not to participate this year.
Yaroslava Shvedova was the defending champion from 2015, when the event was last held, but did not participate this year due to injury.
Ksenia Lykina and Akiko Omae were the defending champions, but Omae chose not to participate.
Emina Bektas and Alexa Guarachi were the defending champions, but Bektas chose not to participate.
Alison Van Uytvanck was the defending champion, but chose not to participate.
Tara Moore and Conny Perrin were the defending champions, but Perrin chose not to participate. Moore partnered Emina Bektas, but lost to Samantha Murray and Bibiane Schoofs in the semifinals.
Zheng Saisai was the reigning champion but chose not to participate.
This was the first edition of the tournament.
This was the first edition of the tournament.
Samantha Stosur and Zhang Shuai defeated Coco Gauff and Caty McNally in the final, 6–3, 3–6, 6–3 to win the women's doubles title at the 2021 US Open. It was Stosur's fourth major title in women's doubles and eighth major overall, as well as Zhang's second major title; this was the team's second major title, following the 2019 Australian Open. This was the first major final for Gauff and for McNally.
The 2021 Henderson Tennis Open was a professional women's tennis tournament played on outdoor hard courts. It was the twelfth edition of the tournament which was part of the 2021 ITF Women's World Tennis Tour. It took place in Henderson, Las Vegas, United States between 4 and 10 October 2021.
Olga Govortsova and Mandy Minella were the defending champions but chose not to participate.
Cara Black and Arina Rodionova were the defending champions, having won the previous edition in 2012. However Black retired from professional tennis in 2015 and Rodionova chose to compete at the 2022 Melbourne Summer Set instead.
Emina Bektas and Tara Moore were the defending champions but were defeated by Sophie Chang and Angela Kulikov in the final, 6–3, 6–7(2–7), [10–7].
Beatriz Haddad Maia defeated Alison Riske in the final, 6–4, 1–6, 6–3 to win the women's singles tennis title at the 2022 Nottingham Open. It was her first WTA Tour singles title, and she became the first Brazilian to win a WTA Tour title on grass since Maria Bueno in 1968.
Heather Watson was the defending champion from when the tournament was last held in 2019 as part of the ITF Women's World Tennis Tour, but lost in the second round to Chloé Paquet.
Emina Bektas was the defending champion but chose not to participate.
Rebecca Marino was the defending champion but chose not to participate.
Victoria Mboko was the defending champion and successfully defended her title, defeating Emina Bektas in the final, 6–4, 6–4.
Jodie Burrage was the defending champion but chose not to participate.