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 2015 / superficie: Difícil
Riko Sawayanagi / año 2015 / superficie: Difícil
| 28.09.15 | 1er ronda | Riko Sawayanagi | Ran Tian | 3-6, 6-2, 6-0 |  | match details |  Zhuhai | Difícil |
| 28.09.15 | 2da ronda | Riko Sawayanagi | Kai-Lin Zhang | 7-5, 6-4 | | match details | ||
| 28.09.15 | 1/4 | Ling Zhang | Riko Sawayanagi | 1-6, 6-2, 6-4 |  | match details | ||
| 20.09.15 | c 2 | Ana Konjuh | Riko Sawayanagi | 6-1, 6-4 | | match details |  Tokyo | Difícil |
| 19.09.15 | c 1 | Riko Sawayanagi | Eri Shimizu | 6-3, 6-1 | | match details | ||
| 12.09.15 | c 1 | Zhaoxuan Yang | Riko Sawayanagi | 6-2, 2-6, 6-3 | | match details | Tokyo | Difícil |
| 09.09.15 | 1er ronda | Julia Glushko | Riko Sawayanagi | 6-2, 6-3 | | match details | Dalian | Difícil |
| 25.08.15 | c 1 | Donna Vekic | Riko Sawayanagi | 3-6, 7-5, 6-4 | | match details |  New York | Difícil |
| 17.08.15 | c 2 | Kateryna Baindl | Riko Sawayanagi | 6-2, 6-4 | | match details |  Vancouver | Difícil |
| 17.08.15 | c 1 | Riko Sawayanagi | Kimiko Date | Kimiko Date - walk over | | match details | ||
| 29.07.15 | 1er ronda | Jelena Jankovic | Riko Sawayanagi | 6-2, 6-1 | | match details | Nanchang | Difícil |
| 13.07.15 | 2da ronda | Riko Sawayanagi | Nicha Lertpitaksinchai | 6-2, 6-4 | | match details |  Bangkok | Difícil |
| 13.07.15 | 1/4 | Riko Sawayanagi | Nungnadda Wannasuk | 6-2, 6-1 | | match details | ||
| 13.07.15 | 1/2 | Miyu Kato | Riko Sawayanagi | 6-2, 6-4 | | match details | ||
| 13.07.15 | 1er ronda | Riko Sawayanagi | Mizuno Kijima | 6-1, 6-0 | | match details | ||
| 06.07.15 | 1er ronda | Riko Sawayanagi | Mai Minokoshi | 6-3, 2-6, 7-63 | | match details | Bangkok | Difícil |
| 06.07.15 | 1/4 | Kai-Lin Zhang | Riko Sawayanagi | 1-6, 7-62, 6-1 | | match details | ||
| 06.07.15 | 2da ronda | Riko Sawayanagi | Kyoka Okamura | 7-5, 6-72, 6-4 | | match details | ||
| 08.06.15 | 1/2 | Riko Sawayanagi | Ching-Wen Hsu | 7-5, 6-3 | | match details | Kashiwa | Difícil |
| 08.06.15 | 1er ronda | Riko Sawayanagi | Shiori Fukuda | 6-3, 6-2 | | match details | ||
| 08.06.15 | fin | Erika Sema | Riko Sawayanagi | 6-4, 6-2 | | match details | ||
| 08.06.15 | 2da ronda | Riko Sawayanagi | Yurika Sema | 6-1, 6-2 | | match details | ||
| 08.06.15 | 1/4 | Riko Sawayanagi | Kyoka Okamura | 6-3, 2-6, 6-0 | | match details | ||
| 25.05.15 | 1er ronda | Riko Sawayanagi | Makoto Ninomiya | 6-1, 6-2 | | match details |  Changwon | Difícil |
| 25.05.15 | 2da ronda | Sung-Hee Han | Riko Sawayanagi | 6-3, 6-1 | | match details | ||
| 18.05.15 | 1/2 | Riko Sawayanagi | Varatchaya Wongteanchai | 6-4, 6-3 | | match details | Seoul | Difícil |
| 18.05.15 | 1er ronda | Riko Sawayanagi | Ekaterina Yashina | 6-1, 6-3 | | match details | ||
| 18.05.15 | fin | Riko Sawayanagi | Su Jeong Jang | 6-4, 6-4 | | match details | ||
| 18.05.15 | 2da ronda | Riko Sawayanagi | Ye-Ra Lee | 6-4, 6-4 | | match details | ||
| 18.05.15 | 1/4 | Riko Sawayanagi | Kristie Ahn | 1-6, 7-66, 6-3 | | match details | ||
| 27.04.15 | 1er ronda | Erika Sema | Riko Sawayanagi | 4-6, 6-0, 6-2 | | match details | Gifu | Difícil |
| 16.02.15 | 1/2 | Tadeja Majeric | Riko Sawayanagi | 6-1, 6-2 | | match details |  New Delhi | Difícil |
| 16.02.15 | 1er ronda | Riko Sawayanagi | Emily Webley-Smith | 7-61, 6-1 | | match details | ||
| 16.02.15 | 2da ronda | Riko Sawayanagi | Luksika Kumkhum | 7-65, 6-2 | | match details | ||
| 16.02.15 | 1/4 | Riko Sawayanagi | Olga Savchuk | 6-1, 1-6, 6-1 | | match details |