Riko Sawayanagi (澤柳 璃子, Sawayanagi Riko, born 25 October 1994) is an inactive Japanese tennis player. Primarily, Sawayanagi has played mostly on the ITF...

from professional tennis at the end of 2015. Webley-Smith partnered Riko Sawayanagi, but they lost in the first round. Wildcards Catherine Bellis and Ingrid...

Miyabi Inoue, while Zhao played with Erin Routliffe. Hiroko Kuwata and Riko Sawayanagi won the title after Erin Routliffe and Carol Zhao gave them a walkover...

chose to participate at the 2015 Nürnberger Versicherungscup instead. Riko Sawayanagi won the title, defeating Jang Su-jeong in the final, 6–4, 6–4. An-Sophie...

Hiroko Kuwata and Riko Sawayanagi were the defending champions, but decided not to participate this year. Jessica Moore and Storm Sanders won the title...

Makoto Ninomiya and Riko Sawayanagi were the defending champions, but Sawayanagi chose not to participate. Ninomiya partnered Robu Kajitani, but lost in...

participate at the 2015 Internazionali BNL d'Italia. Makoto Ninomiya and Riko Sawayanagi won the title, defeating Eri Hozumi and Junri Namigata in the final...

champions, Hibino chose not to defend her title. Webley-Smith partnered Riko Sawayanagi, but lost in the quarterfinals. Hiroko Kuwata and Zhu Lin won the title...

Makoto Ninomiya and Riko Sawayanagi were the defending champions, but lost in the first round to Miki Miyamura and Varatchaya Wongteanchai. Ashleigh Barty...

final of her career. They were supposed to face Hiroko Kuwata and Riko Sawayanagi for the title, but had to withdraw because of an injury. In July, Routliffe...

2017 (2) Junri Namigata Riko Sawayanagi Tammi Patterson Olivia Rogowska 4–6, 7–5, [10–6] 2017 (1) Junri Namigata Riko Sawayanagi Irina Bara Prarthana Thombare...

Su-wei 2–6, 3–6 Loss 5–5 May 2015 Seoul Open, South Korea 50,000 Hard Riko Sawayanagi 4–6, 4–6 Loss 5–6 Aug 2015 ITF Tsukuba, Japan 25,000 Hard Lee Ya-hsuan...

Riko Sawayanagi and Barbora Štefková were the defending champions, but both players chose not to participate. Vania King and Laura Robson won the title...

Luksika Kumkhum and Erika Sema won the event, defeating Nao Hibino and Riko Sawayanagi in the final, 6–4, 6–3. Xu Yifan / Zheng Saisai (quarterfinals) Miki...

having won the previous edition in 2015, but chose not to participate. Riko Sawayanagi and Barbora Štefková won the title, defeating Alison Bai and Varatchaya...

Strakhova 0–6, 6–2, [5–10] Win 3–4 Apr 2022 ITF Antalya, Turkey W15 Clay Riko Sawayanagi Rina Saigo Yukina Saigo 7–6(1), 6–2 Win 4–4 May 2022 ITF Antalya, Turkey...

Shota Sakaki Kazumasa Sasaki Jin Sato Shoichi Sato Yoshinori Sato Riko Sawayanagi Ryo Shibata Hiroki Shibuya Hiroyasu Shimizu Seiichi Sugano Kazuhiko...

Katy Dunne 3–6, 7–5, [10–8] 2011 Mami Adachi Eri Hozumi Miyu Kato Riko Sawayanagi 5–7, 7–5, [10–7] 2010 Eri Hozumi Miyu Kato Daria Salnikova Ekaterina...

alongside Lee Ya-hsuan, but they lost in the first round to Hiromi Abe and Riko Sawayanagi. Hsieh Yu-chieh and Jessy Rompies won the title, defeating Mai Hontama...

Yurika Sema 6–3, 6–4 Win 10–6 Jun 2015 ITF Kashiwa, Japan 25,000 Hard Riko Sawayanagi 6–4, 6–4 Win 11–6 Dec 2021 ITF Monastir, Tunisia 15,000 Hard Eliessa...

Hyun-hui 6–2, 4–6, 3–6 Loss 5–12 Jun 2014 ITF Kashiwa, Japan 10,000 Hard Riko Sawayanagi 4–6, 6–7(5) Win 6–12 Aug 2014 ITF Tsukuba, Japan 25,000 Hard Chang...

Carreras 7–5, 6–1 Win 4–5 Oct 2015 ITF Makinohara, Japan 25,000 Grass Riko Sawayanagi 6–7(6–8), 6–2, 7–6(8–6) Win 5–5 Jan 2018 ITF Sharm El Sheikh, Egypt...

Garcia and Michaëlla Krajicek in the semifinals. Makoto Ninomiya and Riko Sawayanagi won the title, defeating Caroline Garcia and Michaëlla Krajicek in...

the Japan Women's Open in the doubles event where she partnered with Riko Sawayanagi. That year, she had her first chance for her Grand Slam main-draw debut...

ITF Port Pirie, Australia 25,000 Hard Casey Dellacqua Lee Ya-hsuan Riko Sawayanagi 4–6, 5–7 Win 8–2 Mar 2016 ITF Canberra, Australia 25,000 Clay Arina...

2022 ITF Yeongwol, South Korea W15 Hard Lee Eun-hye Junri Namigata Riko Sawayanagi 7–5, 3–6, [13–11] Loss 3–3 Sep 2022 ITF Yeongwol, South Korea W15 Hard...

(quarterfinals) Hiroko Kuwata / Rebecca Peterson (semifinals) Junri Namigata / Riko Sawayanagi (semifinals) Q = Qualifier WC = Wild card LL = Lucky loser Alt = Alternate...

Štefková 5–7, 5–7 Win 5–5 Oct 2016 ITF Makinohara, Japan 25,000 Carpet Riko Sawayanagi 6–3, 6–3 Loss 5–6 Oct 2016 ITF Hamamatsu, Japan 25,000 Carpet Shuko...

Elysia Bolton Zara Brankovic Hayu Kinoshita Kaylah McPhee Elena Micic Riko Sawayanagi The following player received entry as a lucky loser: Lisa Mays "W60...

6–1, 6–4 Win 7–3 Jul 2014 Challenger de Granby, Canada 25,000 Hard Riko Sawayanagi Erin Routliffe Carol Zhao w/o Win 8–3 Feb 2015 Open de l'Isère, France...