| Open do Qatar - Feminino | 12/08 09:00 | 4 | Yana Tie v Yuka Ishigaki | L | 4-3 | |
| Open do Qatar - Feminino | 11/19 11:10 | 4 | Yuka Ishigaki v Jihee Jeon | L | 1-4 | |
| Open da Suécia- Feminino | 11/18 16:50 | 5 | Yuka Ishigaki v Manika Batra | W | 4-0 | |
| Open do Qatar - Feminino | 11/18 10:30 | 6 | Yuka Ishigaki v Dora Madarasz | W | 4-0 | |
| Open do Catar - Duplas Mistas | 11/12 11:10 | 4 | Yuka Ishigaki v Mima Ito | L | 1-4 | |
| Open do Catar - Duplas Mistas | 11/11 18:40 | 5 | Yuka Ishigaki v Wai Yam Minnie Soo | W | 4-0 | |
| Open do Catar - Duplas Mistas | 11/11 13:30 | 6 | Yuka Ishigaki v Hanna Haponova | W | 4-0 | |
| Open do Catar - Duplas Mistas | 09/16 11:30 | 4 | Meng Chen v Yuka Ishigaki | L | 4-0 | |
| Open do Catar - Duplas Mistas | 09/16 06:40 | 5 | Hsien-Tzu Cheng v Yuka Ishigaki | W | 1-4 | |
| Open do Qatar - Feminino | 09/11 08:29 | - | Viktoria Pavlovich v Yuka Ishigaki | L | 4-3 | |
| Open do Qatar - Feminino | 09/10 14:59 | - | Yana Noskova v Yuka Ishigaki | W | 1-4 | |
| Open do Qatar - Feminino | 09/10 08:54 | - | Anna Blazhko v Yuka Ishigaki | W | 0-4 |
Yuka Ishigaki (石垣 優香, Ishigaki Yuka, born 22 July 1989) is a Japanese table tennis player who plays a defensive, chopping style.
Ishigaki has won singles titles at the 2010 Egypt Open and the 2016 Bulgaria Open, and a women's doubles crown at the 2010 Japan Open.