| ITF W75 Brisbane | 02/07 02:30 | - |
[212] Sayaka Ishii v
Maddison Inglis
[145] 
|
4-6,5-7 | |
| ITF W75 Brisbane | 02/06 01:00 | - |
[212] Sayaka Ishii v
Hanyu Guo
[462] 
|
6-7,7-5,6-4 | |
| ITF W75 Brisbane | 02/05 01:30 | - |
[212] Sayaka Ishii v
Lea Ma
[381] |
2-6,6-4,5-3 | |
| ITF W75 Brisbane | 01/30 00:00 | - |
[234] Astra Sharma
v
Sayaka Ishii [214]
|
6-4,6-2 | |
| ITF W75 Brisbane | 01/29 04:30 | - |
[263] Himeno Sakatsume
v
Sayaka Ishii [214]
|
6-7,0-6 | |
| Australian Open Women | 01/08 06:50 | 15 |
[208] Sachia Vickery
v
Sayaka Ishii [204]
|
7-6,6-4 | |
| Australian Open Women | 01/07 04:35 | 14 |
[204] Sayaka Ishii v
Aoi Ito
[109] 
|
6-3,6-4 | |
| WTA Canberra | 12/30 02:35 | 19 |
[176] Oksana Selekhmeteva
v
Sayaka Ishii [196]
|
6-7,6-3,6-3 | |
| WTA Canberra | 12/29 06:10 | 14 |
[227] Dalila Jakupovic
v
Sayaka Ishii [197]
|
4-6,3-6 | |
| ITF W50 Yokohama | 11/29 01:00 | 27 |
[282] En Shuo Liang
v
Sayaka Ishii [203]
|
6-4,6-4 | |
| ITF W50 Yokohama | 11/28 02:25 | 26 |
[358] Saki Imamura
v
Sayaka Ishii [203]
|
1-6,0-6 | |
| ITF W50 Yokohama | 11/27 01:30 | 25 |
[408] Priska Madelyn Nugroho
v
Sayaka Ishii [203]
|
6-2,5-7,4-6 | |
| WTA Tokyo | 10/25 05:55 | 27 |
Diana Shnaider
v
Sayaka Ishii
|
Walkover | |
| WTA Tokyo | 10/23 06:05 | 26 |
[285] Sayaka Ishii v
Zeynep Sonmez
[152] 
|
4-6,6-2,6-3 | |
| WTA Tokyo | 10/22 03:35 | 25 |
[158] Sara Saito
v
Sayaka Ishii [279]
|
1-6,1-6 | |
| WTA Tokyo | 10/20 05:50 | 19 |
[64] Clara Tauson
v
Sayaka Ishii [285]
|
6-1,5-7,5-7 | |
| WTA Tokyo | 10/19 04:20 | 14 |
Sae Noguchi
v
Sayaka Ishii
|
2-6,2-6 | |
| WTA Osaka | 10/12 07:20 | 14 |
[268] Sayaka Ishii v
Kimberly Birrell
[138] 
|
2-6,6-3,3-6 | |
| ITF W75 Perth | 09/18 02:00 | 25 |
[350] Petra Hule
v
Sayaka Ishii [262]
|
6-3,4-6,7-6 | |
| ITF W75 Perth | 09/12 03:30 | 26 |
[370] Petra Hule
v
Sayaka Ishii [266]
|
7-6,6-4 | |
| ITF W75 Perth | 09/10 02:00 | 25 |
[450] Sakura Hosogi
v
Sayaka Ishii [266]
|
6-3,5-7,5-7 | |
| ITF W100 Incheon | 09/05 07:50 | 26 |
[274] Sayaka Ishii v
Hina Inoue
[325] 
|
4-6,1-6 | |
| ITF W100 Incheon | 09/04 05:25 | 25 |
[200] Hanna Chang
v
Sayaka Ishii [274]
|
6-3,1-6,1-6 | |
| WTA Cleveland | 08/20 15:00 | 25 |
[36] Katerina Siniakova
v
Sayaka Ishii [284]
|
6-7,6-3,7-6 | |
| WTA Cleveland | 08/18 17:30 | 19 |
[301] Elvina Kalieva
v
Sayaka Ishii [283]
|
5-7,1-6 | |
| WTA Cleveland | 08/17 14:00 | 14 |
[68] Saisai Zheng
v
Sayaka Ishii [283]
|
3-6,4-6 | |
| ITF W100 Cary | 08/12 19:20 | 19 |
[287] Sayaka Ishii v
Lucrezia Stefanini
[180] 
|
Retired | |
| ITF W100 Cary | 08/11 22:20 | 54 |
[140] Maya Joint
v
Sayaka Ishii [287]
|
3-6,6-4,1-6 | |
| ITF W100 Landisville | 08/07 22:35 | 25 |
[287] Sayaka Ishii v
McCartney Kessler
[110] 
|
2-6,3-6 | |
| ITF W100 Landisville | 08/06 14:00 | 54 |
[217] Simona Waltert
v
Sayaka Ishii [287]
|
4-6,2-6 |