Nombre: Riko Sawayanagi
País: Japan
Fecha de nacimiento: 25.10.94, 31 años
WTA ranking: 853
TOP posición de la clasificación: 178 (05.10.15, 28500 puntos)
Puntos: 29
Dinero del premio: 187859 $
Partidos totales: 440
ganar: 245
%: 55.68 %
País: Japan
Fecha de nacimiento: 25.10.94, 31 años
WTA ranking: 853
TOP posición de la clasificación: 178 (05.10.15, 28500 puntos)
Puntos: 29
Dinero del premio: 187859 $
Partidos totales: 440
ganar: 245
%: 55.68 %
| año | resumen | Difícil | Arcilla | I. difícil | Alfombra | Césped | Acrílico |
| 2023 | 15/11 | 10/9 | 5/2 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2022 | 22/19 | 10/7 | 12/9 | 0/1 | 0/1 | 0/1 | 0/0 |
| 2021 | 19/11 | 7/4 | 12/7 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2019 | 0/1 | 0/0 | 0/0 | 0/0 | 0/1 | 0/0 | 0/0 |
| 2018 | 9/8 | 6/5 | 0/0 | 0/0 | 3/2 | 0/1 | 0/0 |
| 2017 | 17/32 | 13/27 | 0/2 | 0/0 | 4/3 | 0/0 | 0/0 |
| 2016 | 44/34 | 34/25 | 1/3 | 0/1 | 9/4 | 0/1 | 0/0 |
| 2015 | 32/23 | 22/13 | 4/4 | 0/0 | 0/1 | 6/5 | 0/0 |
| 2014 | 36/20 | 20/13 | 4/1 | 0/0 | 6/2 | 6/4 | 0/0 |
| 2013 | 23/14 | 22/12 | 0/0 | 0/0 | 0/1 | 1/1 | 0/0 |
| 2012 | 11/11 | 2/5 | 0/0 | 0/0 | 3/1 | 6/5 | 0/0 |
| 2011 | 17/11 | 3/6 | 0/0 | 0/0 | 14/5 | 0/0 | 0/0 |
| TOTAL | 245/195 | 149/126 | 38/28 | 0/2 | 39/21 | 19/18 | 0/0 |
| porc. % | 55.68 % | 54.18 % | 57.58 % | 0 % | 65 % | 51.35 % | 0 % |
Riko Sawayanagi / programado / pasado
| No se encontraron partidos |
Riko Sawayanagi form / año 2016 / superficie: Difícil
Riko Sawayanagi / año 2016 / superficie: Difícil
| 12.12.16 | c 2 | Valeria Savinykh | Riko Sawayanagi | 7-5, 6-1 |  | match details |  Dubai | Difícil |
| 12.12.16 | c 1 | Riko Sawayanagi | Gabriela Pantuckova | 6-4, 6-1 |  | match details | ||
| 12.11.16 | fin | Irina Khromacheva | Riko Sawayanagi | 6-1, 6-1 | | match details |  Pune | Difícil |
| 11.11.16 | 1/2 | Riko Sawayanagi | Conny Perrin | 6-1, 6-3 | | match details | ||
| 10.11.16 | 1/4 | Riko Sawayanagi | Tadeja Majeric | 6-3, 7-65 | | match details | ||
| 09.11.16 | 2da ronda | Riko Sawayanagi | Tereza Mrdeza | 6-3, 7-65 | | match details | ||
| 08.11.16 | 1er ronda | Riko Sawayanagi | Nudnida Luangnam | 6-2, 7-5 | | match details | ||
| 04.11.16 | fin | Dalma Galfi | Riko Sawayanagi | 6-0, 6-4 | | match details |  Chenzhou | Difícil |
| 04.11.16 | 1/2 | Riko Sawayanagi | Ying Zhang | 5-7, 6-2, 6-0 | | match details | ||
| 03.11.16 | 2da ronda | Riko Sawayanagi | Angelina Gabueva | 6-3, 6-2 | | match details | ||
| 03.11.16 | 1/4 | Riko Sawayanagi | Katarzyna Piter | 6-2, 6-3 | | match details | ||
| 02.11.16 | 1er ronda | Riko Sawayanagi | Katharina Lehnert | 6-4, 6-3 | | match details | ||
| 26.10.16 | 1er ronda | Kai-Chen Chang | Riko Sawayanagi | 4-6, 6-2, 6-1 | | match details | Liuzhou | Difícil |
| 01.10.16 | 1/2 | Su Jeong Jang | Riko Sawayanagi | 6-2, 6-1 | | match details |  Iizuka | Difícil |
| 01.10.16 | 1/4 | Riko Sawayanagi | Ayano Shimizu | 6-4, 7-5 | | match details | ||
| 30.09.16 | 2da ronda | Riko Sawayanagi | Haruka Kaji | 6-2, 6-3 | | match details | ||
| 28.09.16 | 1er ronda | Riko Sawayanagi | Mana Ayukawa | 6-2, 6-4 | | match details | ||
| 18.09.16 | c 2 | Katarzyna Piter | Riko Sawayanagi | 6-3, 6-74, 6-2 | | match details |  Seoul | Difícil |
| 17.09.16 | c 1 | Riko Sawayanagi | Sung-Hee Han | 6-4, 6-4 | | match details | ||
| 09.09.16 | c 1 | Rebecca Peterson | Riko Sawayanagi | 7-63, 6-1 | | match details | Tokyo | Difícil |
| 26.08.16 | 1/4 | Peangtarn Plipuech | Riko Sawayanagi | 2-6, 6-3, 7-61 | | match details | Tsukuba | Difícil |
| 25.08.16 | 2da ronda | Riko Sawayanagi | Yuuki Tanaka | 6-1, 3-6, 6-2 | | match details | ||
| 24.08.16 | 1er ronda | Riko Sawayanagi | Miki Miyamura | 6-4, 6-75, 6-2 | | match details | ||
| 28.07.16 | 2da ronda | Arina Rodionova | Riko Sawayanagi | 6-1, 6-4 | | match details |  Lexington | Difícil |
| 27.07.16 | 1er ronda | Riko Sawayanagi | Miyu Kato | 7-65, 6-4 | | match details | ||
| 21.07.16 | 2da ronda | An-Sophie Mestach | Riko Sawayanagi | 6-3, 6-2 | | match details | Sacramento | Difícil |
| 20.07.16 | 1er ronda | Riko Sawayanagi | Alexandra Stevenson | 6-4, 6-0 | | match details | ||
| 14.07.16 | 2da ronda | Alison Van Uytvanck | Riko Sawayanagi | 6-2, 6-0 | | match details | Stockton | Difícil |
| 12.07.16 | 1er ronda | Riko Sawayanagi | Kristie Ahn | 6-4, 4-6, 6-4 | | match details | ||
| 29.06.16 | 1er ronda | Caitlin Whoriskey | Riko Sawayanagi | 4-6, 6-2, 6-0 | | match details | El Paso | Difícil |
| 25.06.16 | 1/2 | Valeriya Solovyeva | Riko Sawayanagi | 6-2, 6-3 | | match details | Baton Rouge | Difícil |
| 24.06.16 | 1/4 | Riko Sawayanagi | Francoise Abanda | 6-4, 6-1 | | match details | ||
| 23.06.16 | 2da ronda | Riko Sawayanagi | Carol Zhao | 6-2, 6-2 | | match details | ||
| 22.06.16 | 1er ronda | Riko Sawayanagi | Ronit Yurovsky | 6-1, 6-3 | | match details | ||
| 16.06.16 | 2da ronda | Caroline Dolehide | Riko Sawayanagi | 6-2, 6-3 | | match details | Sumter | Difícil |
| 14.06.16 | 1er ronda | Riko Sawayanagi | Ashley Weinhold | 6-4, 3-6, 6-3 | | match details | ||
| 07.06.16 | 1er ronda | Peangtarn Plipuech | Riko Sawayanagi | 7-5, 7-5 | | match details | Tokyo | Difícil |
| 26.05.16 | 2da ronda | Lauren Albanese | Riko Sawayanagi | 6-3, 6-3 | | match details | Tianjin | Difícil |
| 25.05.16 | 1er ronda | Riko Sawayanagi | Xinyu Jiang | 6-1, 6-4 | | match details | ||
| 05.05.16 | 1/4 | Hiroko Kuwata | Riko Sawayanagi | 6-0, 6-3 | | match details | Gifu | Difícil |
| 05.05.16 | 2da ronda | Riko Sawayanagi | Luksika Kumkhum | 7-66, 4-6, 7-65 | | match details | ||
| 03.05.16 | 1er ronda | Riko Sawayanagi | Ayaka Okuno | 6-2, 6-1 | | match details | ||
| 22.04.16 | 1/4 | Kai-Lin Zhang | Riko Sawayanagi | 6-3, 6-3 | | match details | Nanning | Difícil |
| 21.04.16 | 2da ronda | Riko Sawayanagi | Shilin Xu | 6-3, 0-6, 6-3 | | match details | ||
| 20.04.16 | 1er ronda | Riko Sawayanagi | Jiaxi Lu | 7-5, 6-1 | | match details | ||
| 14.04.16 | 1/4 | Qiang Wang | Riko Sawayanagi | 6-1, 6-2 | | match details | Shenzhen | Difícil |
| 13.04.16 | 2da ronda | Riko Sawayanagi | Chen Liang | 6-4, 6-4 | | match details | ||
| 11.04.16 | 1er ronda | Riko Sawayanagi | Miharu Imanishi | 6-1, 7-64 | | match details | ||
| 08.04.16 | 1/4 | Mayo Hibi | Riko Sawayanagi | 7-64, 1-6, 6-3 | | match details | Kashiwa | Difícil |
| 06.04.16 | 2da ronda | Riko Sawayanagi | Luksika Kumkhum | 7-68, 6-2 | | match details | ||
| 04.04.16 | 1er ronda | Riko Sawayanagi | Mana Ayukawa | 6-3, 6-3 | | match details | ||
| 30.03.16 | 1er ronda | Na-Lae Han | Riko Sawayanagi | 6-4, 7-64 | | match details | Kofu | Difícil |
| 23.03.16 | 1er ronda | Yuxuan Zhang | Riko Sawayanagi | 6-3, 6-2 | | match details | Quanzhou | Difícil |
| 26.02.16 | 1/2 | Arina Rodionova | Riko Sawayanagi | 2-6, 6-2, 6-2 | | match details |  Port Pirie | Difícil |
| 25.02.16 | 2da ronda | Riko Sawayanagi | Anastasia Pivovarova | 6-4, 6-3 | | match details | ||
| 25.02.16 | 1/4 | Riko Sawayanagi | Zuzana Zlochova | 6-4, 6-1 | | match details | ||
| 23.02.16 | 1er ronda | Riko Sawayanagi | Yuuki Tanaka | 6-4, 6-0 | | match details | ||
| 17.02.16 | 1er ronda | Barbora Stefkova | Riko Sawayanagi | 7-5, 6-4 | | match details | Perth | Difícil |
| 04.01.16 | 1er ronda | Viktorija Golubic | Riko Sawayanagi | 6-4, 6-75, 6-2 | | match details |  Hong Kong | Difícil |